List of String Quartet Composers - The (Almost) Complete List Ever

 This LIST OF STRING QUARTET COMPOSER - THE (ALMOST) COMPLETE , is an additional list to Wikipedia article.  As you may found in my previous three articles on Additional List of String Quartet Composers (part 2, part 3), these are mean to provided more composers entry for Wikipedia's List of String Quartet Composers. There are actually hundred of names did not make it into Wikipedia list, which is why I ended up putting names after names into the list.

This list is works of my research, via online or by collecting string quartet recordings. I will by time to time try to edit and fix the format. However, I found this list already understandable enough. Please feel free to add in comments section, if you find missing composer, especially from Classical era. My previous list , I declared as supersede, replace by this one.

updated: Feb, 17th 2017 (major updated from list given by reader in commentary)

LIST OF STRING QUARTETS COMPOSERS AND WORKS

Born in the 1700s 

• Alessandro Scarlatti 1660-1725
  "Quattro sonate a Quattro” , the earliest piece composed for string quartet ensemble
  no.1 in f minor
  no.2 in c minor
  no.3 in g minor
   no.4 in d minor 1715-1725
• Joseph Gibbs (1699-1788) six quartets
• Baldassare Galuppi (1706-1785) – 7 Concerti a Quattro, for string quartet
• Franz Xaver Richter (1709-89) String quartets Op. 5 Nr. 1-6 (1757)
• Giovanni Battista Ferrandini (c. 1710 – 25 October 1791) – string quartets  in Eb and G minor had been recorded 
• Ignaz Holzbauer (1711-83)
   string quartet in B-flat and E-flat, as well two quartets unidentified
• Felice Giardini (1716-96) – string quartet in Eb,
  Op 22 (1799-1780), 6 quartets
  Op 23 (1782), 6 quartets, [2 each for {vn,ob,va,vc}/{vn,2va,vc}/{2vn,va,vc}]
  Op 25 (1783), 3 quartets
  Op 29 (1790), 6 quartets
   (1776), [in 6 Quartettos by Bach, Abel and Giardini, {fl/vn,vn,va,bc}]
• Monn, Matthias Georg (1717-1750)
  6 quartets (1808), [2 from syms]
• Camerloher, Placidus Cajetan von (1718-1782)
  6 Simphonia da camera
• Wenzel Raimund Pirck (1718-63)
  also spelled [Birk, Birckh, Pirck, Pirckh, Pürk, Pürck] at least sixteen quartets

• Giovanni Battista Sammartini (c. 1700–1775): Wrote several quartets though as with many early works for the medium some of these could be played equally by a small string orchestra.
• Franz Xaver Richter (1709–1789): Wrote string quartets, Op. 5 numbers 1–6 (1757).

Born in the 1720s

• Florian Leopold Gassmann (1729–1774): He is thought to have composed 37 string quartets, including six quartetti published c. 1768 as Op. 1 (H431–6); a set published as Op. 2 (H441–2, 435, 444–6); and a further six published in 1804 (H451–6).^[1]
• Anders Wesström (c.1720-81), in Bb had been recorded bySalomon SQ
• Pietro Nardini (1722-93), six quartet in A,C,Bb, Fm G, Eb, recorded by Eleusi Quartet·
• Carl Friedrich Abel (1723-87)
• Johann Baptist Wendling (1723-97)
• Christian Ernst Graf (30 June 1723 — 17 July 1804)
  6 String Quartets, 6 String Quartets, Op.3 - RECORDINGS
• Giovanni Battista Cirri (1724-1808)
• Ferdinando Bertoni (1725-1813) - six quartets
• Friedrich Hartmann Graf (1727-95)
• Franz Asplmayr (1728-86) – Six quartet Op.2
   String Quartet in D major
   String Quartet in E-flat major
   String Quartet No.12
• Joseph Starzer (1728-87)
• Florian Leopold Gassmann (1729-74)
  Divertimento in F Major (H. 435); Divertimento in C Major (H. 461); Divertimento in E Major (H. 467)

Born in the 1730s

• Christian Cannabich (1731–1798): six string quartets Op. 5 (about 1780).
• Joseph Haydn (1732–1809): wrote sixty-eight string quartets (some of which he called Divertimenti), the last incomplete, plus Die Sieben letzten Worte unseres Erlösers am Kreuze (The Seven Last Words of Christ on the Cross), a sequence of eight slow movements plus a brief, rapid, finale (originally written for orchestra, but probably better known in its version for string quartet). He also arranged a set of six preludes and fugues by Gregor Werner for string quartet.
• List of string quartets by Joseph Haydn
• François Joseph Gossec (1734–1829): twelve string quartets: Op. 14 (1770) and Op. 15 (1772) [1]
• Michael Haydn (1737-1806), who, like his more famous brother, influenced Mozart's chamber and symphonic work, wrote nineteen string quartets.
• Jan Křtitel Vaňhal / Johann Baptist Vanhal (1739–1813): over seventy string quartets. ([2])
•  Antonin Kammel (1730-84)
   6 String Quartets, Op.4, 6 Quartets, Op.7 (some can be replace by flute/oboe)
• Antonio Sacchini (1730-86) - 6 string quartets Op.2 London 1778
• Tommaso Giordani (c.1730-1806) - 6 quartets Op.2 and Op.8
• Joseph Toeschi (1731-88) - 6 quartets Op.1 (for violin or flute)
• Gaetano Pugnani (1731-98)
• Giuseppe Demachi (1732-c.91)
• Johann Christoph Friedrich Bach (1732-95)
• Thomas Alexander Erskine, 6th Earl of Kellie (1 September 1732 – 9 October 1781), 9 string quartets
• Ignaz von Beecke (1733-1803) – quartet in G, Bb , G had been recorded
• Filtz, Anton (1733-1760)
  6 quartets (?1785)  2 more
• Karl von Ordonez (1734-86) / Carlo d'Ordonez
  Brown IV:A1 - String Quartet Op. 1 No.1 in A major
  Brown IV:A2 - String Quartet Op. 3 No.4 in A major
  Brown IV:A3 - String Quartet Op. 2 No.4 in A major
  Brown IV:A4 - String Quartet in A minor
  Brown IV:B1 - String Quartet Op. 1 No.5 in B flat major
  Brown IV:B2 - String Quartet Op. 2 No.1 in B flat major
  Brown IV:B3 - String Quartet in B flat major
  Brown IV:B4 - String Quartet Op. 4 No.2 in B flat major
  Brown IV:C1 - String Quartet Op. 4 No.4 in C major
  Brown IV:C2 - String Quartet Op. 3 No.3 in C major
  Brown IV:C3 - String Quartet Op. 2 No.3 in C major
  Brown IV:C4 - String Quartet Op. 1 No.3 in C minor
  Brown IV:D1 - String Quartet Op. 3 No.2 in D major
  Brown IV:D2 - String Quartet Op. 4 No.6 in D major
  Brown IV:D3 - String Quartet Op. 3 No.6 in D major
  Brown IV:D4 - String Quartet Op. 2 No.2 in D major
  Brown IV:Es1 - String Quartet Op. 4 No.3 in E flat major
  Brown IV:Es2 - String Quartet Op. 1 No.4 in E flat major
  Brown IV:F1 - String Quartet Op. 4 No.1 in F major
  Brown IV:F2 - String Quartet Op. 3 No.5 in F major
  Brown IV:F3 - String Quartet Op. 1 No.2 in F major
  Brown IV:F4 - String Quartet in F major
  Brown IV:F5 - String Quartet Op. 2 No.5 in F minor
  Brown IV:G1 - String Quartet Op. 1 No.6 in G major
  Brown IV:G1 - String Quartet Op. 4 No.5 in G major
  Brown IV:G3 - String Quartet Op. 3 No.1 in G major
   Brown IV:G4 - String Quartet Op. 2 No.6 in G minor
• Christoph Sonnleithner (1734-86) – 36 string quartets
• Joseph Schmitt (1734-91)
• Johann Christian Bach (1735-82)
• Ernst Wilhelm Wolf (1735-92)
• Johann Georg Albrechtsberger (1736-1809)
  major composer with at least three quartets Op.7 in C, Gm, Eb
  6 quartets Op 2
  6 quartets Op 20
  6 quartets Op 21
• Ignaz Fränzl (1736-1811)
• Josef Myslivecek (1737-81) - 6 SQ Op.1, 6 SQ Op.3, 1 SQ Op.Post
• Johann Georg Christoph Schetky (1737-1824)
• Pierre Vachon (1738-1803) about 30 string quartets, 1775-1782
  Op. 5 (c. 1775), 6 quartets (A, Gm, Fm, Bb, A, Eb)
  Op. 6 (1776?), 6 string quartets, published in London,
  Op. 7 (1773), 6 string quartets (F, D, Eb, Bb, D,C)
  Op. 9 (1774), 6 string quartets (lost)
   Op. 11 (1782), 6 string quartets (A, E, G, B,F,C)
• Carl Ditters von Dittersdorf (1739-99)
• Franz Ignaz Kaa (1739-1818)

Born in the 1740s

• Ernst Eichner (1740–1777): in addition to flute quartets he wrote a set of six string quartets, Sechs Quartette Op. 12 (published 1776–77)
• Václav Pichl (1741–1805): wrote over thirty quartets; he was one of the founders of the Vienna Violin School.
• Roman Hoffstetter (1742–1815): an Austrian monk and composer, now supposed to have composed the six string quartets known as Haydn's Op. 3, including the well-known 'Serenade Quartet'.
• Luigi Boccherini (1743–1805): A prolific composer in most chamber music genres, Boccherini wrote ninety-one string quartets — he also wrote many string quintets.
• List of compositions by Luigi Boccherini
• Giuseppe Cambini (1746–1825): wrote 149 string quartets and 30 quartets d'airs variés ([3]) (many of which exist also in versions with winds. Alfred Einstein suggests that Mozart's fourth flute quartet, in his opinion a satirical work, may have been in part a comment on their popularity.)
  
  
• Nicholas-Joseph Chartrain (1740-93)
• Ivan Mane Jarnovic (1740 or 1745-1804) Dubrovnik city, at least three string quartets
• Giovanni Paisiello (1740-1816)
  R 8.01 - String Quartet No.1 in C major
  R 8.02 - String Quartet No.2 in A major
  R 8.03 - String Quartet No.3 in D major
  R 8.04 - String Quartet No.4 in E flat major
  R 8.05 - String Quartet No.5 in E flat major
  R 8.06 - String Quartet No.6 in C major
  R 8.07 - String Quartet No.7 in E flat major
  R 8.08 - String Quartet No.8 in G major
  R 8.09 - String Quartet No.9 in A major
• Mikhail Frantsevich Kerzelli (c.1740-1818)
• Karl Friedrich Baumgarten (c.1740-1824)
• Andreas Lidel (Lidl 1740, Austria -  1789) , at least 18 quartets for Op.2, Op.6, Op.7, 1st violin interchange to flute
• Anton Zimmerman (1741-81)
• Henri-Joseph Rigel (1741-99)
• François-Hippolyte Barthélémon (1741-1808) - 6 String Quartets Op.9 & Op.12
• Alois Luigi Tomasini (1741-1808)
  in D (Ko.5), in Bb (Ko.10), in Dm (Ko.11) - recordings
• André-Ernest-Modeste Grétry (1741-1813)
  String Quartets Op. 3 (1761-1765) 3 (1761-1765)
  String Quartet in E flat major, Op. String Quartet in E flat major, Op. 3/2
  String Quartet in F major, Op. String Quartet in F major, Op. 3/3
  String Quartet in G major, Op. String Quartet in G major, Op. 3/1
  String Quartet in D major, Op. String Quartet in D major, Op. 3/4 9:53 3 / 4 9:53
  String Quartet in c minor, Op. String Quartet in c minor, Op. 3/6 9:10 3 / 6 9:10
  String Quartet in G major, Op. String Quartet in G major, Op. 3/5 10:26 3 / 5 10:26
• Jean-Baptiste-Aimé Janson (1742-1803)
• Anton Ferdinand Titz (1742-1811) , about three CD recordings by Hofffmeister SQ
• Jean-Baptiste Davaux (1742-1822)
  Op 6 (1773), 6 quartets, {2vn,va,b}
  Op 9 (1779), 6 quatuors concertants
  Op 10 (1780), 6 quatuors d'airs connus
  Op 14 (1790), 4 quartets  Op 17 (?), 3 quatuors concertans, {2vn,va,b}
• Antonine Laurent Baudron (1742-1834) - 6 String Quartet Op.3
• Johann Baptist Kolb (31 August 1743 — between 1827 and 1850?)
  6 quartets Op.1 F major, B♭ major, F major, D major, B♭ major, D major
• Gaetano Brunetti (1744-98)
  six quartet Ms1636 (in C,Bb,F,A,Eb,G)
• Marie-Alexandre Guénin (1744-1835)
• Joseph Bengraf (1745-91)
• Joseph Boulogne, Chevalier de Saint-Georges (1745-99) – at least 18 string quartets
• Johann Peter Salomon (20 February 1745 (baptized) – 28 November 1815) was a German >> ??? string quartet, op.71 op 74 1793 same as Haydn
• Carl Stamitz (1745-1801)
• Silverius Müller (1745-1812)
• Maddelena Laura Sirmen-Lombardini (1745-1818) – at least six quartets had been recorded
• Georg Druschetzky (1745-1819)
  String Quartet No. 1 String Quartet No. 2 String Quartet No. 3 in D major
• Georg Anton Kreusser (1746-1810)
• Venancio Rauzzini (1746-1810)
• František Adam Míča (11 January 1746 — 19 March 1811)
  no.2 in C
• Manuel Canales (1747-86)
• Leopold Anton Kozeluch (1747-1818)
  P VIII:1 \ String Quartet Op. 32 No. 1 in B flat major
  P VIII:2 \ String Quartet Op. 32 No. 2 in G major
  P VIII:3 \ String Quartet Op. 32 No. 3 in E flat major
  P VIII:4 \ String Quartet Op. 33 No. 1 in C major
  P VIII:5 \ String Quartet Op. 33 No. 2 in A major
  P VIII:6 \ String Quartet Op. 33 No. 3 in F major
• Joseph Fiala (1748-1816)
• Etienne-Bernard-Joseph Barrière (1748-1818)
• Emanuel Aloys Förster (1748-1823)
• William Shield (1748-1829)
• Julien Navoigille (c.1749-?1811)
• Georg “Abbe” Joseph Vogler (1749 – 1814)
  4 string quartets in F,F,F Eb major – no.8 in Ab?

• Antonio Rosetti (1750-92)
  D6 IV:1.1 String Quartet Op 2/1 A major 
  D7 IV:1.2 String Quartet Op 2/2 C major 
  D8 IV:1.3 String Quartet Op 2/3 E flat major 
  D9 IV:2.1 String Quartet Op 6/1 A major CPO 1995
  D10 IV:2.2 String Quartet Op 6/2 E flat major CPO 1995
  D11 IV:2.3 String Quartet Op 6/3 B flat major CPO 1995
  D12 IV:2.4 String Quartet Op 6/4 C minor CPO 1995
  D13 IV:2.5 String Quartet Op 6/5 D major CPO 1995
  D14 IV:2.6 String Quartet Op 6/6 F major CPO 1995
  D15 IV:4.1 String Quartet A major 
  D16 IV:4.2 Flute Quartet G major 
  D17 IV:4.3 String Quartet F major 

Born in the 1750s

• Bartolomeo Campagnoli (1751–1827): wrote six string quartets.
• Franz Anton Hoffmeister (1754–1812): fifty string quartets (plus seven for vn, 2va, vc) (source: Grove online).
• Giovanni Battista Viotti (1755–1824): seventeen string quartets.
• Franz Grill (1756?–1792): nine string quartets.
• Wolfgang Amadeus Mozart (1756–1791): wrote twenty-three string quartets, including the six so-called Haydn Quartets (1782–1785), generally reckoned to be his best.
• Joseph Martin Kraus (1756–1792): wrote altogether 16 string quartets (6 Goetingen quartets are lost). See also his Flute quintet in D major.
• Paul Wranitzky (1756–1808): wrote seventy-three string quartets which, at their best (the six quartets of Op. 16, the three of Op. 23), are second only to Haydn and the mature Mozart in quality.
• Alessandro Rolla (1757–1841): ten string quartets: three as Op. 2, three as Op. 5, and four others (source: Grove).
• Franz Krommer / František Kramář (1759–1831): wrote approximately 100 string quartets, many of which were very popular in early 19th century Vienna, and were compared positively to Beethoven's quartets.
• Anton Stamitz (1750-?96)
• Johann Mathias Sperger (1750-1812)
  at least nine string quartets without key information on earsense.org
• Josephus Andreas Fodor (1751-1828)
• John Marsh (1752-1828)
• Joseph Teixidor (1752-c.1811)
  String Quartets: No. 1 in B♭; No. 2 in G; No. 5 in E♭1801
  (by  Cambini Qrt • LA MA DE GUIDO 2093 (61:04) )
• Nicolas Dalayrac (1753 1809) – String quartet Op.7
• Johann Schenk (30 November 1753 — 29 December 1836)
  five string quartets
• Otto Carl Erdmann Freiherr von Kospoth (1753-1817)
  6 quartets Op.10
• Johan Wikmanson (1753-1800) – 5 sq no.2 in Em
• Otto Carl Erdmann (1753-1817)
• Jean-Baptiste Bréval (1753-1823) – Quatuor Concertants
• Giuseppe Antonio Capuzzi (1755-1818)
  Op 1 (1780), 6 quartets
  Op 2 (1780), 6 quartets
   Op 6 (1787), 6 quartets
• Federigo Fiorillo (c.1755-?1823)
• Gaetano Andreozzi (1755-1826)
• Johann Christoph Vogel (1756-88)
• Franz Grill (1756-92), recorded by Festetic SQ
• Pavel Wranitzky (1756–1808)
  3 String Quartets, op 1
  3 String Quartets, op 2
  6 String Quartets, op 9
  6 String Quartets, op 10
  6 String Quartets, op 15
  6 String Quartets, op 23 Recording available
  6 String Quartets, op 26/op 16 Recording available
  6 String Quartets, op 30
  6 String Quartets, op 32
  3 String Quartets, op 40
  String Quartet, op 41/op 45 no 1
  String Quartet, op 45/op 45 no 2
  String Quartet, op 49/op 45 no 3
   5 unpublished surviving quartets
• Anton Teyber (1756-1822)
• Joseph Gehot (8 April 1756 — ca.1820)
  six quartets Op.1, six quartets Op.7
• Antonio Bartolomeo Bruni (1757-1821)
• Ignaz Pleyel (1757-1831) – 70 string quartets
• Charles Wesley (1757-1834)
• Franz Teyber (1758-1810)
• Frédéric Blasius (1758-1829)
  string quartets: 2 violins, viola, and cello), Op. 3 (1780–1782)
  String quartets, Op. 10 (1785)
  Six string quartets, Op. 12 (1795)  String quartets, Op. 19 (1795)
• Nikolaus Zmeskáll (1759-1833) , SQ in Gm , SQ in D
• Jacques Christian Michel Widerkehr (18 April 1759 – April 1823) 3 string quartets Op.6
• Franz Christoph Neubauer (c.1760-95)
   String Quartet Op. 3, No. 3 (S. 22);
• Jan Ladislav Dussek (1760-1812)
• Johann Georg Distler (1760 — 28 July 1799)
  3 quartets Op.1
• Johann Evangelist Brandl (1760-Mai 1837)
  6 quartets Op. 17 dedicate to J.Haydn : in C, F, D
• Giovanni Francesco Giuliani (c.1760-?1818)

Born in the 1760s

• Luigi Cherubini (1760–1842): wrote six string quartets (1814–1837).
• Antonín Vranický / Anton Wranitzky (1761–1820): wrote 30 quartets. A founder of the Vienna "violin school" and major virtuoso, he was the teacher of Ignaz Schuppanzigh and leader of the Lobkowitz Orchestra.
  3 string quartets. Op.1 Published by Hoffmeister around 1803.
  3 String quartets Op. 2  (in C, F and B♭) Published in Vienna by Magazin du Musique around 1790. (Duke University Library has a copy.)
  3 String quartets Op. 4
  6 string quartets Op. 5. Published by André, around 1800.
• Adalbert Gyrowetz / Vojtěch Matyáš Jírovec (1763–1850): friend of Mozart, wrote at least forty-two string quartets (Grove), possibly more than fifty (Hyperion CD notes).
• Joseph Leopold Eybler (1765–1846): friend of Mozart, pupil of Albrechtsberger (who declared him to be the greatest musical genius in Vienna apart from Mozart) and a protégé of Josef Haydn. Three string quartets, Op. 1, available on CD, written at the age of 22 in 1787 (published in 1794.)
• Samuel Wesley (1766–1837): at least one quartet (in E♭, written around 1810. [4])
• Bernhard Romberg (1767–1841): wrote 11 complete string quartets, two sets of three quartets each Op. 1 & 25, and single quartets Opp. 12, 37, 39, 59, 60.^[2]
• Andreas Romberg (1767–1821): wrote 29 complete string quartets, three quartets each in Opp. 1, 2, 5, 7, 16, 30, 53, 59 and 76, a single quartet, Op. 40, including a "quatuor brilliant", Op. 11. He also wrote three rondos for string quartet, Op. 34.
• Erik Tulindberg (1761-1814)
• Antonín Vranický (June 13, 1761 – August 6, 1820)
• Johann Wessely (1762-1810)
• Johannes Andreas Amon (1763-1825)
• Franz Danzi (1763-1826)
  Op 5 (?1790), 3 quartets
  Op 6 (?1790), 3 quartets
  Op 7 (c1790), 3 quartets
  Op 16 (1800)
  Op 29 (c1805), 3 quartets
  Op 44 (c1813), 3 quartets
   Op 55 (?1821), 3 quartets
• Bernard Lorenziti (c.1764-c.1815)
• Anton Eberl (1765-1807)
• Jakub Jan Ryba (1765-1815), string quartet in Dm
• Daniel Steibelt (1765-1823)
•          Domenico Dragonetti (1763-1846), at least 4 string quartets, 31s Quintets
• Johan Arnold Dahmen (1766-94)
• Rodolphe Kreutzer (1766-1831)
• János Spech (1767-1836)
• Ferdinand Fränzl (1767-1833)
• Franz Alexander Pössinger ( 1767 in Wien- 1827)
  String quartet in G dur Op.45, 6 quartets Op.49 (no.5 in D)
• Leonhard von Call (1767-1815) - Quartet No.1 in C Major, Op.139, in G Op 140, in F Op 141
• Louis Emmanuel Jadin (1768-1853)
• George Lickl (1769-1843)
• Jozef Antoni Franciszek Elsner (1769-1854)

Born in the 1770s

• Ludwig van Beethoven (1770–1827): wrote sixteen quartets widely regarded as among the finest quartets by any composer. The Große Fuge was originally composed as the last movement of Op. 130, but was subsequently published as a separate work.
• Johan Hoffmann (1770–1815): two quartets (in D major and F major). ([5], this link also for Hoffmann).
• Peter Hänsel (1770–1831): wrote at least ten quartets.
• Anton Reicha (1770–1836): wrote at least thirty-seven string quartets (14 of them newly-discovered), of which the ten Vienna quartets (1801-6) are the most important. Though largely ignored since Reicha's lifetime, they were highly influential works. Groups in Europe have begun programming Reicha's quartets, and first modern editions and first recordings are now in the works. Volume 1 and 2.
• Ján Josef Rösler  (1771–1813): Three String Quartets, Op. 6, recorded
• Antal György Csermák (c.1774–1822): wrote a quartet Die drohende Gefahr.
• Hyacinthe Jadin (1776–1800): twelve string quartets in four opera, Opp. 1, 2, 3, 4, all in four movements except Op. 4, No. 1. Modeled on Haydn & Mozart; pre-romantic. Recorded.
• Joseph Küffner (1776–1856): at least five string quartets (Op. 41 nos. 1-3, Op. 52, Op. 178)
• Johann Nepomuk Hummel (1778–1837): wrote three string quartets, Op. 30, No. 1 in C major; Op. 30, No. 2 in G major and Op. 30, No. 3 in E♭ major (all ca.1808). Recordings.
• John Webbe (1770-1843)
• Glachant, Antoine-Charles (1770 - 1851), 3 string quartets Op.5 1820
• Peter Hänsel 1770-1831
  Three String Quartets, Opus 5
  Quartet No. 1 in A Major
  Quartet No. 2 in E-flat Major
   Quartet No. 3 in D Major
• Pierre Baillot (1771-1842)
• Joseph Wölfl (1773-1812)
  String Quartet in E flat major op. 30 No. 1. Dedicated to Mr. Bassi Guaita
  String Quartet in C major op. 30 No. 2. Dedicated to Mr. Bassi Guaita
  String Quartet in D major op. 30 No. 3. Dedicated to Mr. Bassi Guaita
   Six String Quartets op.51. Published by Lavenu in London
• Pierre Rode (1774-1830)
• Guénin, Marie-Alexandre (1744 - 1835)- 6 string quartet Op.7 1796
• Felice Alessandro Radicati (1775–1820)
  9 string quartets
• Philipp Jakob Riotte (16 August 1776  – 1856)
  3 quartet Op.21
• Fernando Sor (1778 – 10 July 1839) – 3 string quartets
• Weiss, Franz (1778–1830)
   3 String Quartets, Op.1
   2 String Quartets, Op.8
• Joachim Nikolas Eggert (1779-1813), recorded
• Angelo Maria Benincori (1779-1821)  
• George Eugene Griffin (8 January 1781 — 28 May 1863)
  3 String Quartets Op.8
• Nikolaus von Krufft (1 February 1779 — 16 April 1818)
  3 string quartets

Born in the 1780s

• Niccolò Paganini (1782–1840): fifteen string quartets for violin, viola, guitar and cello, as well as three traditional string quartets.
• George Onslow (1784–1853): thirty-six quartets written between 1810 and 1845. RECORDINGS
• Louis Spohr (1784–1859): known as Ludwig in his native Germany, Spohr wrote thirty-six string quartets and four double quartets (for two string quartets).
• List of string quartets by Louis Spohr
• Alexander Alyabyev (1787–1851): wrote at least two string quartets, plus one incomplete (see this concert notice)
• Franciszek Lessel (1780 – December 26, 1838) was a Polish composer.
  String Quartet No.1  1800
   String Quartet No.8 in Bb Op.19
• Jacques Féréol Mazas (23 September 1782 — 26 August 1849)
  3 quartet Op.7
• Justus Johann Friedrich Dotzauer (20 June 1783 – 6 March 1860)
  String Quartet, Op.64 , 2 String Quartets, Op.12
• Ferdinand Ries (1784-1838) - 25 string quartets, recorded by Schuppanzigh String Quartet

• Alexander Pierre Francais Boely (1785-1858)
  Quartet in Am Op.27, Trio Op.5, Sextet
• Karol Kurpiński (1785-1857) - Fantasie for String Quartet (1825)
• Henry Rowley Bishop (17 November 1786 — 30 April 1855)
  String Quartet (Bishop, Henry Rowley)
• Friedrich Kuhlau (1786-1832) - Quartet in a minor, Op.122
• Simon Sechter (11 October 1788 – 10 September 1867)
  Austrian. super prolific composers, wrote about one fugue per day. Listed to wrote two quartes: String Quartet in G major and The Four Temperaments: Music in a Jocular Vein (String Quartet), Op. 6
• Jean Martin de Ron (1789-1817) – string quartet in F minor and 15 quartets (not confirmed)
• Johann Peter Pixis (1788-1874) – 3 string quartet Op.69 (1800-1810)
• Louis Schlösser (17 November 1800 — 17 November 1886)
  String Quartet in D Op.11
• Frederic Ernest Fesca (February 15, 1789 – May 24, 1826)
  String Quartet, Op.12  - many are being recorded by Diogenes SQ and Authentic SQ
  3 String Quartets, Op.1 , in Eb, F#m , Bb
  3 String Quartets, Op.2 , Op.3, 
• Erik Gustaf Geijer (12 January 1783 – 23 April 1847)
  string quartet No.1 in F, string quartet No.2 in B (1846)
• Ron, Marin de (1789-1817) in C (?)  in f (?)  in c (1816)
• Joseph Mayseder (27 October 1789 – 21 November 1863)
  was an Austrian violin virtuoso and composer.
  String Quartets :
  Opus 5 in A major
  Opus 6 in G minor
  Opus 7 in A-flat major
  Opus 8 in F major (Quatuor Brilliant)
  Opus 9 in D major
  Opus 23 in G major
  Opus 62 in F-sharp minor
  Opus 66 in D major
  Thèmes variés, with accompaniment of 2nd violin, viola and cello, op. 1, 4, 15
  and five string quintets

• Franz Xaver Gebel (1787-1843) – at least three string quartet, two recorded in 2015 by Hoffmeister Quartet

Born in the 1790s

• Anselm Hüttenbrenner (1794–1868): wrote two string quartets (E major 1816, C minor 1847)
• Franz Berwald (1796–1868): Swedish composer, wrote three string quartets, No. 1 in G minor (1818), No. 2 in A minor (1849), and No. 3 in E♭ major (1849).
• Gaetano Donizetti (1797–1848): Much better known for his operas, Donizetti also wrote eighteen string quartets, the first sixteen between 1817 and 1821 (mostly 'scholastic works', though the fifth is his most performed), the seventeenth in 1825 and the last in 1836.
• Franz Schubert (1797–1828): traditionally reckoned to have written fifteen string quartets. The Death and the Maiden and Rosamunde quartets are particularly well known.
• Giuseppe Ghébart (20 November 1796 — 22 January 1870)
  String Quartet No.1, Op.52
  String Quartet No.2, Op.53
   String Quintet No.1, Op.56
• Johann Carl Gottfried Loewe (30 November 1796, Löbejün – 20 April 1869)
      String Quartet in G Major, Op. 24/1
      String Quartet in F Major, Op. 24/2
      String Quartet in C Minor, Op. 24/3
      String Quartet, Op. 26

• Carl Czerny (1791-1857)
  about 20 string quartets, recorded in A minor, D minor, D major, E minor by Sheridan Ensemble
• Leopold Jansa (1795-1875)- Quartet No.10 in a minor, Op.65 No.1
• Ferdinando Giorgetti (25 June 1796 — 22 March 1867) – 7 quartets – No.4 Op32, No.7 in F Op.39 
• Carl Gottlieb Reissiger (1798-1859)
  Quartet No.2 in b minor, Op.111 No.2
  Quartet No.4 in f minor, Op.155

Born in the 1800s

• Johannes Bernardus van Bree (1801–1857): three string quartets
• Jan Kalivoda (1801–1866): three string quartets
• John Lodge Ellerton (1801–1873): some 100 string quartets (many unpublished)
• Bernhard Molique (1802–1869): eight string quartets
• Franz Lachner (1803–1890): at least six quartets (No. 1 in B minor, Op. 75, No. 2 in A major, Op. 76, No. 4 in D minor, Op. 120, No. 5 in G major, Op. 169, No. 6 in E minor, Op. 173)
• Mikhail Glinka (1804–1857): After attempting to compose a quartet in 1824 (a work that remained incomplete), Glinka wrote his only finished string quartet in 1830 While this piece is now seldom performed, it and its incomplete predecessor are notable as among the first attempts by a native Russian composer to work in this genre. **String Quartet in F major" - 1830
• Fanny Mendelssohn (1805–1847): A string quartet in E♭ -1834
• Johan Peter Emilius Hartmann (1805–1900): three string quartets ([6])
• Juan Crisóstomo Arriaga (1806–1826): Early 19th century Spanish composer, born on Mozart's 50th birthday. Wrote three brilliant quartets (ca.1824) before his abrupt death at age 19; No. 1 in D minor; No. 2 in A major; No. 3 in E♭ major
• Václav Jindřich Veit (1806–1864): Early Romantic Czech composer, a major influence on Smetana, wrote four string quartets and five string quintets.
• Andreas Randel (6 October 1806–27 October 1864) – string quartet in F minor
• Ignaz Lachner (1807–1895): wrote eight quartets ([7]- Op. 43 in F; Op. 54 in C; Op. 74 in A; Op. 104 in G; Op. 105 in A minor; Op. 106 in C for 3 violins and viola; Op. 107 in G for four violins; in B♭ Op. posth.)
• Felix Mendelssohn (1809–1847): wrote six numbered string quartets: Op. 12 (1829), Op. 13 (1827), Op. 44 (three quartets, 1838), and Op. 80 (1847); an early unnumbered string quartet in E♭ major (1823); Four Pieces ("Andante", Scherzo, Capriccio, Fugue) for string quartet, Op. 81 (1847); a set of 15 fugues for string quartet, written when Mendelssohn was twelve (!); and another fugue (in E♭ major) for string quartet, written at age eighteen.
• Louis Schlösser (17 November 1800 — 17 November 1886)
  String Quartet in D Op.11

• Friedrich Theodor Fröhlich (20 February 1803 - † 16th October 1836)
  three string quartets recorded by Beethoven Quartett.

• Jan Křtitel Václav Kalivoda (Johann Baptist Wenzel Kalliwoda in German) (February 21, 1801 – December 3, 1866
   String quartet no. 1 in E minor op. 61 (pub. 1835)
   String quartet no. 2 in A major op. 62 (pub. 1836) (published by Amadeus-Verlag in Winterthur, Switzerland in 1999)
  String quartet no. 3 in G major op. 90 (Moderato - Scherzo (Vivace in G minor) - Adagio (E♭ major) - Allegretto grazioso (G major)) (published by Peters in 1830)]
• František Jan Škroup (3 June 1801  – 7 February 1862) Czech
  String Quartet No. 1 in F major, Op. 24
  String Quartet No. 2 in C minor, Op. 25
   String Quartet No. 3 in G major, Op. 29 - recorded
• Léon de Saint-Lubin ( 5. Juli 1805 in Turin; † 13. Februar 1850)
  op.10 String quartet No.1 B minor
  op.19 Srting quaret No.2 D minor (ca. 1825)
   op.27 string quartet No.3 (1829) – other 19 String quartets ?
• Ignacy Feliks Dobrzyński (15 February 1807 – 9 October 1867) was a Polish pianist and composer. three string quartets (Op. 7 in E minor, Op. 8 in D minor and Op. 13 in E).
• Johann Benjamin Gross (1809-1848)- Quartet No.3 in f minor, Op.37

Born in the 1810s

• Norbert Burgmüller (1810–1836): four elegant string quartets: Op. 4 in D minor, Op. 7 in D minor, Op. 9 in A♭ major, and Op. 14 in A minor.
• Robert Schumann (1810–1856): wrote three string quartets (Op. 41), not among his better known works
• Wilhelm Taubert (1811–1891): at least four string quartets (1848? to 1872?)
• Giuseppe Verdi (1813–1901): one string quartet, in E minor -1873
• Robert Volkmann (1815–1883): six string quartets
• Salvatore Pappalardo (1817–1884): 4 published quartets and several in manuscript
• Niels Gade (1817–1890) : one published quartet (D major, Op. 63) and suppressed quartets in F major, F minor and E minor
• Stanislaw Moniuszko  (1819–1872) : two string quartets (D minor, F major)
• Félicien-César David (April 13, 1810 – August 29, 1876) was a French composer. Records.
• Ferdinand David (1810-1873)- Quartet in a minor, Op.32
• Ambroise Thomas (1811-1892) String quartet in Em
• Jakob Rosenhain (1813-1894) - Quartet No.3 in d minor, Op.65
• Sir George Alexander Macfarren (2 March 1813 – 31 October 1887)
  at least six string quartets
• Johannes Joseph Hermann Verhulst (The Hague, March 19, 1816 – Bloemendaal, January 17, 1891)
  3 string quartet in D minor, A flat op.6  and in E flat op.21
• Jean Baptiste Charles Dancla (19 December 1817 – 10 October 1907)String Quartet No.1 in F# minor Op.5 -String Quartet No.2 Op.7 -String Quartet No.3 Op.18 -String Quartet No.4 in Bb Op.41 -String Quartet No.5 in A Op.48 -String Quartet No.6 in C Op.56 -String Quartet No.7 in D Op.80 -String Quartet No.8 in G Op.87 -String Quartet No.9 in E Op.101 -String Quartet No.10 Op.113 -String Quartet No.11 in C Op.125 -String Quartet No.12 in Eb (1877) Op.142  -String Quartet No.13 in B minor (1885) Op.160 -String Quartet No.14 (1900) Op.195 (a)

• Antonio Bazzini (1818-1897)
  no.1 in C
  no.2 in Dm Op.75
  no.3 in Eb Op.76
  no.4 in G Op.79
  no.5 in Fm Op.80
   no.6 in F
• Eduard Franck (1817-1893) - No.1 in f minor, Op.49, No.2, Quartet No.3 in c minor, Op.55
• Louis Théodore Gouvy (July 3, 1819 – April 21, 1898)
  String Quartet in E minor (1848)
  String Quartet in D major (1848)
  String Quartet in A minor (1848)
  String Quartet in B major (1855)
  String Quartet No．1 in B♭ major Op．16-1 (1857)
  String Quartet No．2 Op．16-2 (1857)
  String Quartet No．3 Op．56 No. 1 (1872)
  String Quartet No．4 Op．56 No. 2 (1873)
  String Quartet No．5 Op．68 (1874)
  String Quartet in G minor (1886)
  String Quartet in G major (reconstruction：Pierre Thilloy) (1888)
• Charles Gounod (1818-1893)- Quartet in a minor, Op. Post

Born in the 1820s

• Henri Vieuxtemps (1820–1881): three string quartets (in E minor, Op. 44, in C major, Op. 51, in B♭, Op. 52 — the latter two published posthumously)
• Emilie Mayer (1821–1883): a string quartet in G minor, Op. 14 and several in manuscript
• Friedrich Kiel (1821–1885): two string quartets (Op. 53, in A minor and E♭) and waltzes Op.73 and Op. 78
• Joachim Raff (1822–1882): wrote eight string quartets (1855 to 1876)
• César Franck (1822–1890): wrote one string quartet -1889
• Édouard Lalo (1823-1892): Quartet in E flat Major, Op.19
• Bedřich Smetana (1824–1884): two string quartets, No. 1 in E minor From my Life; and No. 2 in D minor, with the first being the better known
• Anton Bruckner (1824–1896): wrote one string quartet -1862
• Carl Reinecke (1824–1910): wrote five string quartets (Op. 16 in E♭ in 1842, Op. 30 in F around 1851, Op. 132 in C around 1874, Op. 211 in D, Op. 287 in G minor)
• Fritz Bovet (1825-1913) : Quartet in d minor, Op.14
• Frederick Ouseley (1825-1889) : String Quartet in d minor (1868)
• Edward Mollenhauer (1827–1914), United States violinist and composer born in Prussia: his best known compositions were quartets; he also wrote three operas
• Woldemar Bargiel (1828–1897): four string quartets (including No. 3, Op. 15b in A minor and No. 4, Op. 47 in D minor)
• Adolphe Blanc (1828-1885) : Quartet No.3 in F Major, Op.38
• Friedrich Hermann (1828-1907) : Quartet in e minor, Op.8
• Anton Rubinstein (1829–1894): ten string quartets spread throughout his life
• Karl Goldmark (1830–1915): Goldmark's only string quartet was his breakthrough work, his first composition to receive very positive reviews in contemporary Viennese musical journals. Long neglected, it was recorded several times in the 1990s as part of a general revival of interest in Goldmark's chamber music. **String Quartet in B♭ major, Op.8 -1860

Born in the 1830s

• Salomon Jadassohn (1831–1902): wrote one string quartet, in C minor, Op. 10 (1858)
• Ludwig Hoffmann (1830-): Quartet in D Major, Op.18
• Julius Zellner (1832-1900) : Quartet No.2 in d minor,Op.34
• Nicolai von Wilm (1834-1911) : Quartet No.1 in c minor, Op.4
• Alexander Borodin (1833–1887): two string quartets: No. 1 in A -1879 and No. 2 in D (1881), of which the second is the better known, and whose second Scherzo and Notturno third movement have been borrowed for musicals (Kismet) "
• Johannes Brahms (1833–1897): wrote three string quartets, the first two in 1879 and the final one in 1881
• Felix Draeseke (1835–1913): wrote three string quartets between 1880 and 1895
• Camille Saint-Saëns (1835–1921): two string quartets: Op. 112 -1889 and Op. 153 -1918
• Felix Otto Dessoff 1835 –1892): String Quartet in F, Op. 7 dedicated to Brahms
•  Cui, César (1835-1918) : #1 in c Op45 (1890) #2 in D Op.68 (1907) #3 in Eb Op.91 (1913)
• Józef Wieniawski (1837–1912): at least one quartet, in A minor, Op. 32
• Karl Nawratil (1836-1914): Quartet in d minor, Op.21
• Max Bruch (1838–1920): two string quartets, from his student days or a little after, Op. 9 in C minor (1858/9) and Op. 10 in E major -1860
• Ernst Eduard Taubert (1838–1934): at least four string quartets (1877 to 1902)
• Karel Bendl (1838-1897): Quartet in F Major, Op.119
•  Władysław Żeleński (1837 – 1921): String Quartet in F major, Op.28,  Quartet in A major, Op.42
•  François-Clément Théodore Dubois (1837 –1924) - string quartet in Eb,  Cecilia SQ reported performed 2 string quartets believed to be lost previously.
•  Castillon, Alexis (1838-1873) : #1, Op 3 in a (?1867) , #2 (?1867), [inc, 1 mvt pub]
•  Paine, John Knowles (1839-1906) : Op 5 in D (c1859)
• Josef Rheinberger (1839–1901): two string quartets, in C minor, Op. 89 and F major, Op. 147
• Friedrich Gernsheim (1839–1916): five string quartets (No. 1 in C minor, Op. 25 (ca. 1872); No. 2 in A minor, Op. 31 (1875); No. 3 in F major, Op. 51 (1886); No. 4 in E minor, Op. 66; No. 5 in A major, Op. 83 (ca. 1911))

Born in the 1840s

• Hermann Goetz (1840–1876): one string quartet in B♭ (1865–66)
• Pyotr Ilyich Tchaikovsky (1840–1893): three string quartets: No. 1 in D, Op. 11 (1871); No. 2 in F, Op. 22 (1873); and No. 3 in E♭ minor, Op. 30 (1876), of which the first is the best-known, especially the Andante cantabile second movement which has been recorded many times with full orchestra
• Johan Svendsen (1840–1911): one string quartet, his Op. 1
• Antonín Dvořák (1841–1904): wrote fourteen string quartets, out of which number twelve, the American, is the best known
• Giovanni Sgambati (1841–1914): wrote a string quartet in D♭ major, his Op. 17 -1882
• Elfrida Andrée (1841–1929): wrote one string quartet in D minor  and another in A major (published in 2000)
• Mikola Lysenko (1842-1912) : Quartet in d minor
• David Popper (1843-1913) : Quartet in c minor, Op.74
• Heinrich von Herzogenberg (1843–1900): wrote five string quartets (1876–1890)
• Edvard Grieg (1843–1907): wrote two string quartets, the second being unfinished
• Ján Levoslav Bella (1843–1936): wrote three string quartets, in E minor (1871), C minor -1880 and B♭ minor -1887
• Georg Wilhelm Rauchenecker (1844-1906): wrote six string quartets
  String Quartet No. 1 in C minor (1874)
  String Quartet No. 2 in D major (1878)
  String Quartet in A minor (ca. 1879)
  String Quartet in E major (ca. 1883)
  String Quartet in G minor (in the Form of a Suite) (ca. 1890)
  String Quartet in E flat major
• Nikolai Rimsky-Korsakov (1844–1908): better known for his orchestral suites, he also wrote three complete string quartets, two single movements and three other pieces for string quartet
•  Clara Kathleen Rogers (1844–1931): 2 string quartets
•  Hermann Graedener or Grädener (1844 –1929) :String Quartet No.1, Op.33 , String Quartet No.2, Op.39
• Gabriel Fauré (1845–1924): one string quartet, in E minor, Op. 121 -1924
• Janos Vegh (1845-1918): three quartets , performed by Authentic Quartet
• Giuseppe Buonamici (1846-1914): Quartet in G Major (1870)
• Franz Ries (1846-1932) : Quartet No.1 in d minor, Op.5
•  Leo Grill (1846-1919): String Quartet No.1 in E flat Major, Op.9
•    Zygmunt Noskowki 1846-1909, No.1 in Dm Op.9 1874/75, No.2 in E 1879, No.3 in Em 1884,  Humorous Quartet in D 1887   (added part 3)
• August Klughardt (1847–1902): two string quartets (in F, Op. 42 and in D, Op. 61)
• Robert Fuchs (1847–1927): four string quartets: No. 1 in E, Op. 58 (1895); No. 2 in A minor, Op. 62 (1899); No. 3 in C, Op. 71 (1903); No. 4 in A, Op. 106 -1916 (Austrian National Library claims to have a late 5th quartet)
• Alexander Mackenzie (1847–1935): one string quartet in G -1868
• Constantin Dimetrescu (1847-1920): Quartet No.1 in G Major, Op.21, Quartet No.4 in g minor, Op.38
• Hubert Parry (1848–1918): 3 string quartets (unpublished during his lifetime)
• Wilhelm Fitzenhagen (1848–1890): one string quartet, in D minor, Op. 23 (c. 1870)
•  Ludwig Philipp Scharwenka (1847–1917) , String Quartet in D minor, op.117, String Quartet in D major, op.120
•   Benjamin Godard (1849-1895) ,Quartet No.1 in g minor, Op.33,  Quartet No.2 in A Major, Op.37, Quartet No.3 in A Major, Op.136
•   Tomás Bretón (29 December 1850 — 2 December 1923), String quartet in D

Born in the 1850s

• Zdeněk Fibich (1850–1900): wrote two string quartets (A major, 1874, G major, 1878) and a set of variations for quartet (B♭, 1883) according to Orfeo CD label
• Alexander Taneyev (1850–1918): three string quartets: No. 1 in G major, Op. 25; No. 2 in C major, Op. 28; and No. 3 in A major, Op. 30 (source: Olympia CD notes)
• Antonio Scontrino (1850–1922): wrote four string quartets (A minor, G minor, F major, C major) and a movement (prelude and fugue in E minor) for string quartet
• Vincent d'Indy (1851–1931): wrote three string quartets
• Charles Villiers Stanford (1852–1924): wrote eight string quartets (1891–1919)
• Leoš Janáček (1854–1928): wrote two string quartets, known as The Kreutzer Sonata and Intimate Letters
• Ernest Chausson (1855–1899): wrote one string quartet in three movements; the third movement was completed by Vincent d'Indy after Chausson's death in 1899
• Christian Sinding (1856–1941): wrote a string quartet, his Op. 70
• Sergei Ivanovich Taneyev (1856–1915): nine complete string quartets, two partial (source: Grove Music Online)
• Edward Elgar (1857–1934): one string quartet in E minor, Op. 83 -1918
• Sylvio Lazzari (1857–1944): a string quartet in A minor, Op. 17
• Giacomo Puccini (1858–1924): an elegy for string quartet, Crisantemi ("Chrysanthemums"), that he wrote in 1890
• Ethel Smyth (1858–1944): one published string quartet, in E minor (1902–1912) and one unpublished, dating from her student days in Leipzig, in C minor
• Mikhail Ippolitov-Ivanov (1859–1935): at least one string quartet, Op. 13 in A minor
• Josef Bohuslav Foerster (1859–1951): five string quartets (1888–1951; the fifth incomplete at his death)
• Nikolay Sokolov (1859–1922): wrote three string quartets (in F Op. 7, in A Op. 14 and in D minor, Op. 20, published 1890, 1892 and 1894) and contributed to projects of the Belyayev circle with Nikolai Rimsky-Korsakov, Alexander Glazunov, Alexander Kopylov and others (including a polka for Les Vendredis for string quartet and other works)
• Carreño, Teresa (1853-1917)
  string quartet in b (1896)
• Foote, Arthur (1853-1937)
  #1, Op 4 in g (1883)
  #2, Op 32 in E (1894)
   #3, Op 70 in D (1910)
• Chadwick, George Whitefield (1854-1931)
  #1 in g (1878)
  #2 in C (1879)
  #3 in D (1885)
  #4 in e (1896)  #5 in d (1898)
• Alexander Kopylov (14 July 1854 — 5 March 1911)
  String Quartet No.1, Op.15
  String Quartet No.2, Op.23
  String Quartet No.3, Op.32
   String Quartet No.4, Op.33
• Engelbert Humperdinck (German [ˈɛŋl̩bɛʁt ˈhʊmpɐdɪŋk]; 1 September 1854 – 27 September 1921) was a German composer,
  String Quartet in C Major
  String Quartet Movement in E minor
   String Quartet Movement in C minor
• Léo Sachs (4 April 1856 — 13 November 1930)
  String Quartet, Op.143
• Wilhelm Kienzl (17 January 1857 – 3 October 1941) was an Austrian composer.
  String Quartet No. 1 in B minor op. 22
  String Quartet No. 2 in C minor op. 99
   String Quartet No. 3 in E-flat major op. 113
• Laura Valborg Aulin (1860-1928)  qt .1 w/o Op in F 1884, qt.2 op.17 in e 1889
• Iver Holter (1850-1941) - Quartet No.1, in E flat Major, Op.1, Quartet No.2, in G Major, Op.18
• Adolf Barjansky (1850-1900) - Quartet No.1 in F Major, Op.6, Quartet No.2, Op.8
• Wladimir Pogojeff (1851-1935) - Theme and Variations, Op.3
  Quartettino in C Major, Op.5, Quartet in d minor, Op.7
• Ruperto Chapi (1851-1909)- Quartet No.1 in G Major (1903)
• Hans Koessler (1853-1926) - Quartet No.2 in g minor (1902)
• Arnold Mendelssohn (1855-1933), Quartet No.1 in D Major, Op.67, Quartet No.2 in B flat Major, Op.83
• Rudolph Bergh (1859-1924) - Quartet in d minor, Op.10
• Julius Klengel (1859-1933) - Quartet No.1 in g minor, Op.21
• Richard Perger (1854-1911) - Quartet No.2 in B flat Major, Op.11
• Heinrich XXIV Reuss (1855-1910) - Quartet No.4 in g minor, Op.23 No.1, Quartet No.5 in.E flat Major, Op.23 No.2
• Fernand de La Tombelle (1854-1928) - Quartet in E Major, Op.36
• Joseph Miroslav Weber (1854-1906) - Quartet No.2 in b minor (1891)

Born in the 1860s

• Anton Arensky (1861–1906): two string quartets, No. 1 (Op. 11) and No. 2 (Op. 35), the latter for violin, viola and two cellos and including the Variations on a Theme of Tchaikovsky, also arranged for string orchestra.
• Emil von Reznicek (1860–1945): four string quartets, including No. 1 in C♯ minor (1921), also in D minor ([9]; pub. Bimbach, 1923, Berlin) and B♭ major (pub. Bimbach, 1932), quartet in C minor (published by E.W. Fritzsch, Leipzig, 1883).
• Hugo Wolf (1860–1903): wrote one string quartet -1884 and a more famous Italian Serenade for string quartet (1892); also, an Intermezzo
• Charles Martin Loeffler (1861–1935): two string quartets, in A minor (1889), and Music for Four Stringed Instruments -1917
• Claude Debussy (1862–1918): one string quartet, in G minor, Op. 10 -1893
• Frederick Delius (1862–1934): wrote three string quartets (1888, 1893 and 1916)
• Emánuel Moór (1863–1931): two string quartets, op. 59 in A and op. 87, and other works for string quartet^[5]
• Felix Weingartner (1863–1942): four string quartets (in D minor, Op. 24, in F minor, Op. 26, in F, Op. 34 and in D, Op. 62, pub. 1899, 1900, 1903 and 1918)
• Eugen d'Albert (1864–1932): two string quartets (in A minor, Op. 7 and in E♭, Op. 11, 1887 and 1893)
• Alexander Gretchaninov (1864–1956): four string quartets: No. 1 in G major, Op. 2 (1894); No. 2 in D minor, Op. 70 (1913); No. 3 in C minor, Op. 75 (1915); No. 4 in F major, Op. 124 -1929
• Alberto Nepomuceno (1864–1920): wrote three string quartets
• Guy Ropartz (1864–1955): six quartets (1893–1951)
• Richard Strauss (1864–1949): wrote one string quartet
• Alexander Glazunov (1865–1936): wrote seven string quartets, and numerous other compositions for string quartet (the Five Pieces of 1879–1881, the Five Novelettes Op. 15, the Finale of the B-la-F Quartet and the first movement Carol-singers of the Name-day Quartet, the Suite Op. 35, the Two Pieces of 1902, and the Elegy for Belyayev Op. 105). The Third Quartet -1888 is often nicknamed the Slav Quartet, while the Seventh Quartet -1930 is subtitled Homage to the Past.
• Gustav Jenner (1865–1920): wrote three string quartets (1907, 1910 and 1911 — [10])
• Albéric Magnard (1865–1914): wrote one string quartet -1903
• Carl Nielsen (1865–1931): wrote four published string quartets, also an early quartet and quartet movements
• Jean Sibelius (1865–1957): wrote three youthful quartets (in E♭, 1885; in A minor, 1889; and in B♭, Op. 4, 1890) and his much better known quartet Voces Intimae, Op. 56 -1909 [11]
• Ferruccio Busoni (1866–1924): two string quartets, Op. 19 in C minor -1884 and Op. 26 in D minor -1887
• Amy Beach (1867–1944): wrote one quartet, String Quartet in One Movement, Op. 89 -1921
• Charles Koechlin (1867–1950): three string quartets, in D Op. 51 (1911–13), Op. 57 (1911–16), Op. 72 in D (1917–21)
• John Blackwood McEwen (1868–1948): 17 string quartets written from 1898 to 1947
• Max von Schillings (1868–1933): string quartet in E minor (about 1887)
• Hans Pfitzner (1869–1949): wrote four string quartets (in D minor, without Op. number, 1886; D major, Op. 13 1903, C♯ minor, Op. 36 from 1925 - later arranged into a symphony, and C minor, Op. 50, 1942)
• Parker, Horatio (1863-1919)
  Op 11 in F (1895)
• Tor aulin (1866-1914)
• Wood, Charles (1866-1926)
  in d (1883) ,in Eb (1893) ,/2 in a (c1911), [#3?]
   in Eb (1912) ,/6 in F (1915) ,in D (?) ,in g (?), [Incomplete]
• Ottokar Nováček (13 May 1866 — 3 February 1900)
  String Quartet in E minor
  String Quartet, Op.10
   String Quartet, Op.13
• Ewald Straesser (27 June 1867 — 4 April 1933)
  Op.12 - 2 String Quartets
  1.String Quartet in E minor (Simrock, 1901. Plate 11607.)
  2.String Quartet No.2 in G minor (Simrock, 1901.)
  Op.15 - String Quartet No.3 in B♭ major
  Op.42 - String Quartet No.4 in E minor
   Op.52 - String Quartet No.5 in G minor
• Jan Brandts Buys (12 September 1868 — 8 December 1939)
  String Quartet, Op.19
  String Sextet, Op.40
   Suite for String Quartet, Op.23
• Leone Sinigaglia (14 August 1868 — 16 May 1944)
  String quartet in D major, opus 27.
   Scherzo for String Quartet, Op.8
• Vitezlav Novak (1870-1949)
  String Quartet in G-Major, Op. 22
  Trio in D-Minor, Op. 27
  String Quartet in D-Major, Op. 35
  String Quartet in G-Major, Op. 66
• Victor Ewald (1860-1935) - Quartet in C Major, Op.1
• Georgy Catoire (1861-1926) - Quartet in f# minor, Op.23
• Anton Hegner (1861-1915) - Quartet in B flat Major, Op.13
• Friedrich Klose (1862-1942) - Quartet in E flat Major (1911)
• Maurice Emmanuel (1862-1938) - Quartet in B flat Major, Op.8
• Hugo Kaun (1863-1932),  Quartet No.1 in F Major, Op.30,  Quartet No.3 in c minor, Op.74
• Felix Blumenfeld (1863-1931) - Quartet in F Major, Op.26
• Jazeps Vitols (1863-1948) - Quartet in G Major, Op.27
• Louis Glass (1864-1936) - Quartet No.4 in f# minor, Op.35
• Stephan Krehl (1864-1924) - Quartet in A Major, Op.17
• Alexander Winkler (1865-1935) - Quartet No.1 in C Major, Op.7
• Guido Peters (1866-1937) - Quartet No.2 in c minor (1910)
• Franz Bölsche (1869-1935) - Quartet No.2 in c minor, Op.27

Born in the 1870s

• Alfred Hill (1870–1960): Australian composer, wrote seventeen string quartets.
• Vítězslav Novák (1870–1949): three quartets (1899–1938)
• Joseph Ryelandt (1870–1965): Four string quartets (1897–1943)^[6]
• Florent Schmitt (1870–1958): String Quartet in G, Op. 112 -1947
• Louis Vierne (1870–1937): One string quartet -1894
• Henry Kimball Hadley (1871–1937): wrote two string quartets: No. 1 in A, Op. 24, and No. 2, Op. 132 -1932
• Wilhelm Stenhammar (1871–1927): Swedish composer, wrote six string quartets
• Alexander von Zemlinsky (1871–1942) four string quartets and two movements for string quartet: No. 1 in A major, Op. 4 (1896); No. 2, Op. 15 (1913–15); No. 3, Op. 19 (1924); No. 4 (Suite), Op. 25 (1936); and two movements for string quartet -1927
• Ralph Vaughan Williams (1872–1958): two numbered string quartets: No. 1 in G minor (1908, rev. 1921) and No. 2 in A minor (1942/3). Also one student work in C minor (1897)
• Reynaldo Hahn (1874–1947): at least two string quartets (A minor from 1939, F major from 1943)
• Charles Ives (1874–1954): wrote two string quartets (1896 and 1913), the first entitled From the Salvation Army
• Paul Juon (1872–1940): four string quartets (a youthful Op. five and three acknowledged quartets Op. 11 in B minor, Op. 29 in A minor and Op. 67 in C)
• Max Reger (1873–1916): wrote six string quartets (including an early posthumously-published work with an optional part for double bass)
• Arnold Schoenberg (1874–1951): wrote four numbered string quartets, the second of which includes a part for soprano. Also composed an early, unnumbered, string quartet
• Franz Schmidt (1874–1939): quartet 1 in A (1925), quartet 2 in G -1929
• Josef Suk (1874–1935): two string quartets — in B♭, Op. 11 from 1896, and Op. 31 in one movement from 1911, tonal but from G minor -> D♭. Also the Meditation on the Old Czech Chorale St. Wenceslas, Op. 35a, 1914
• Franco Alfano (1875–1954): wrote three string quartets
• Reinhold Glière (1875–1956): wrote four string quartets: in A major, Op. 2 (1899), in G minor, Op. 20 (1905), in D minor, Op. 67 (1927), in F minor, Op. 83 -1943
• Fritz Kreisler (1875–1962): wrote a string quartet in A minor -1919
• Erkki Melartin (1875–1937): wrote four quartets, in E minor (1896), G minor (1900), E♭major -1902 and in F -1910 ([12])
• Maurice Ravel (1875–1937): one string quartet, in F major -1903
• Richard Wetz (1875–1935): wrote two string quartets: in F minor, Op. 43, in E minor, Op. 49
• Erno Dohnányi (1877–1960): wrote three string quartets (1899, 1906, 1926)
• Lucien Durosoir (1878–1955): wrote three string quartets (1920, 1922, 1933–34)
• Joseph Holbrooke (1878–1958): wrote two string quartets (1905, 1915)
• Frank Bridge (1879–1941): five string quartets: B♭(1901); No. 1 in E minor ('Bologna') (1906); No. 2 in G minor (1915); No. 3 (1926); No. 4 (1937), plus a host of other, shorter pieces
• Jean Cras (1879–1932): one string quartet -1909 [13]
• John Ireland (1879–1962): two string quartets
• Ottorino Respighi (1879–1936): three string quartets: D major (1907), D minor -1909 and Quartetto Dorico -1924
• Lorenzo Perosi (21 December 1872 - 12 October 1956)
  3 string quartets in Am, Bb, G
• Joseph Jongen (14 December 1873 – 12 July 1953)
  Three string quartets
• Mason, Daniel (1873-1953)
  Op 19 (1918-1919), on Negro Themes
  Variations on a Theme of John Powell (1924-1925)
  Op 28 (1927), Fanny Blair, folksong fantasy
  Op 31 (1931), Serenade
   Op 40 (1939), Variations on a Quiet Theme
• MK Čiurlionis (1875 –10 April 1911)
  String quartet in Cm
• Ernst Mielck (24 October 1877 – 22 October 1899)
  string quartet no.1 in Gm Op.1 1845
• Carlo Perinello (13 February 1877 — 6 January 1942)
  String Quartet, Op.10
• Rutland Boughton (1878-1960)
  String quartet in A Welsh, String quartet in F on Greek Folk Song
•  Volkmar Andreae (5 July 1879 – 18 June 1962) -   String Quartet No. 1 in B-flat major, Op. 9, String Quartet No. 2, Op. 33 - recorded by Locrian Quartet
• Hermann Suter (1870-1926),  Quartet No.1 in C Major, Op.1, Quartet No.2 in c sharp minor, Op.10, Quartet No.3 in G major, Op.20
• Roffredo Caetani (1871-1961) - Quartet in No.1 D Major, Op.1
• Paul Graener (1872-1941) - String Quartet No.2 in a minor, Op.54
• Johann Persiany (1872-19??) - Quartet in A Major, Op.1
• Witold Maliszewski (1873-1939) - Quartet No.3 in E flat Major, Op.15
• Sergei Rachmaninov (1873-1943) - String Quartet No.1 (1889) ,  No.2 (1896)
• Rudolf Tobias (1873-1918) - Quartet No.2 in c minor
• Henri Marteau (1874-1934) - Quartet No.3 in C Major, Op.17
• Richard Stöhr (1874-1967) - Quartet in No.1 in d minor, Op.22
• Paul Scheinpflug (1875-1937) - Quartet in c minor, Op.16
• Donald Tovey (1875-1949) - Air and Variations, Op.11, String Quartet No.1 in G Major, OP.23
• William Hurlstone (1876-1906)- Phantasie (1905)
• Ludolf Nielsen (1876-1939) - Quartet No.2 in c minor, Op.5, Quartet No.3 in C Major, Op.41
• Joachim Neergaard (1877-1920) - Quartet in c minor, Op.6
• Joseph Haas (1879-1960) - Quartet in A Major, Op.50
• Louis Thirion (1879-1966) - Quartet in E Major, Op.10

Born in the 1880s

• Ernest Bloch (1880–1959): wrote five string quartets
• Ermend Bonnal (1880–1944): two string quartets (1927? and 1934) [14]
• Ildebrando Pizzetti (1880–1968): two string quartets in A major -1906 and D major (1932-3)
• Béla Bartók (1881–1945): wrote six string quartets widely regarded as being the finest quartets of the first half of the 20th century
• George Enescu (1881–1955): wrote two string quartets (No. 1 in E♭and No. 2 in G, Op. 22 nos. 1 and 2, 1916 – 1920 and 1951)
• Nikolai Myaskovsky (1881–1950): wrote thirteen (1907–1949)
• Nikolai Roslavets (1881–1944): wrote five string quartets (1913, 1915, 1920, 1929–31, 1942 [15]).
• Ignatz Waghalter (1881–1949): One string quartet, in D major, Op. 3
• Zoltán Kodály (1882–1967): wrote two string quartets (1908 and 1917)
• Joseph Marx (1882–1964): wrote three string quartets ([16]) not counting the original version of one and a draft.
• Gian Francesco Malipiero (1882–1973): wrote eight string quartets (1920–1964)
• Artur Schnabel (1882–1951): wrote five string quartets (1918–1940 - [17])
• Igor Stravinsky (1882–1971): Three Pieces for String Quartet (1914); Concertino (1920); Double Canon for String Quartet -1959
• Joaquín Turina (1882–1949): early quartet Op. 4 -1911 and a later work for string quartet, La Oración del Torero -1925
• Karol Szymanowski (1882–1937): two string quartets, No. 1, Op. 37 in C major -1917 and No. 2, Op. 56 -1927
• Arnold Bax (1883–1953): three string quartets: No. 1 in G major (1918), No. 2 in E minor and No. 3 in F major -1936
• Fran Lhotka (1883–1962): string quartet in G minor
• Anton Webern (1883–1945): his String Quartet is composed using the twelve-tone technique. His Five Movements, Op. 5 -1909 and Six Bagatelles, Op. 9 (1911–13) are also significant in SQ literature. Plus, a string quartet, a slow movement and a rondo from 1905
• Alban Berg (1885–1935)
• String Quartet, Op. 3 -1910
• Lyric Suite (serial,1926) for string quartet, a work which influenced Bartók and many others
• Egon Wellesz (1885–1974): wrote nine string quartets, No. 1 'in five movements' Op. 14 (1911–12) through No. 9, Op. 97 -1966 and Op. 103 Music for String Quartet
• Othmar Schoeck (1886–1957): wrote two string quartets (Opp. 23, 1913, and 37, 1923) and a movement for string quartet (1908).
• Kurt Atterberg (1887–1974): three string quartets, only one, No. 2 in B minor, recorded
• Ernst Toch (1887–1964): 13 string quartets, the first five now lost, and a brief Dedication for quartet.
• Fartein Valen (1887–1952): wrote two string quartets
• Heitor Villa-Lobos (1887–1959): wrote seventeen string quartets between 1915 and 1957
• Matthijs Vermeulen (1888–1967): wrote one string quartet (1960–61)
• Johanna Beyer (1888–1944): wrote two (1934, 1936)
• Riccardo Pick-Mangiagalli (10 July 1882 — 8 July 1949)
  String Quartet in Gm Op.18 1910
•   Walter Braunfels (19 December 1882 – 19 March 1954)String Quartet No. 1 in A minor, Op. 60 (1944)String Quartet No. 2 in F Major, Op. 61 (1944)String Quintet in F sharp minor, Op. 63 (1944)String Quartet No. 3, Op. 67 (1947)

• Maximilian Steinberg (4 July 1883 — 6 December 1946)
  String Quartet No.1, Op.5
   String Quartet No. 2, Op. 16 (1925)
• Jesús Guridi Bidaola (Vitoria, Spain, 25 September 1886  – Madrid, 7 April 1961)
   Quartet in G major (1934) and Quartet in A minor (1949).
• Gustaf Bengtsson (1886-1965) Swedish
  String Quartet in D major, Composed in 1929, when Bengtsson was around 43 years old
• Nancy Dalberg (1881-1949) - Quartet No.2 in g minor
• Karl Weigl (1881-1949) - Quartet No.1 in c minor, Op.20, Quartet No.3 in A Major, Op.4
• Alexander Krein (1883-1951) - Poém for String Quartet, Op.9
• Leó Weiner (1885-1960) ,  Quartet No.1 in E flat Major, Op.4,  Quartet No.2 in f sharp minor, Op.13, Quartet No.3 in G Major, Op.26
• James Friskin (1886-1967) - Phantasie for String Quartet (1906)
• Hugo Kauder (1888-1972) ,  Quartet No.1 in c minor,  Quartet No.2 in G Major,  String Quartet No.4
• Cecil Armstrong Gibbs (10 August 1889 – 12 May 1960) : String Quartet "3 Pieces" 1927
  String Quartet "Birthday Greeting" 1942
  String Quartet "Peacock Pie" 1933
  String Quartet e-minor 1958
  String Quartet opus 1 C-major "Little Suite"
  String Quartet opus 6
  String Quartet opus 7 g-minor 1916
  String Quartet opus 8 a-minor 1917
  String Quartet opus 140 "A Simple String Quartet" 1954
  String Quartet opus 18 E-major 1918
  String Quartet opus 22 fis-minor

Born in the 1890s

• Bohuslav Martinů (1890–1959): wrote ten string quartets of which only eight survive, Nos. 40550 and the unnumbered Tři jezdci -1902
• Arthur Bliss (1891–1975): four string quartets: No. 1 in A major (1914); No. 2 (1923); No. 3 in B♭ (1941); No. 4 -1950
• Sergei Prokofiev (1891–1953): wrote two string quartets (1930 and 1941)
• Arthur Honegger (1892–1955): wrote three string quartets, in C minor (1917), D major (1936), and E major -1937
• Darius Milhaud (1892–1974): wrote eighteen, the fourteenth and fifteenth of which may be played as an octet
• Hilding Rosenberg (1892–1985): wrote twelve (No. 1, 1920 revised 1955 to No. 12, 1957)
• Germaine Tailleferre (1892–1983): wrote one quartet (1917–19)
• Alois Hába (1893–1973): wrote sixteen quartets, empolying various microtonal systems (e.g. No. 11 uses a sixth-tone system; No. 12, quarter-tone; No. 16, fifth-tone)
• Paul Dessau (1894–1979): seven string quartets (No. 1 before 1943 and published 1969?, No. 2 in 1942/43, No. 3 in 1943–46, No. 4 Barbaraquartett or 99 Bars for Barbara ([18]), No. 5 Quartettino (Felsenstein-Quartett) in 1955, No. 6 Sieben Sätze für Streichquartett in 1974, No. 7 in 1975 Also a string quartet movement in 1957.)
• Ernest John Moeran: (1894–1950): two string quartets (in A minor and in E♭ major)
• Willem Pijper (1894–1947): five string quartets (1914, 1920, 1923, 1928, 1946)
• Walter Piston (1894–1976): wrote five string quartets (from 1933 to 1962)
• Erwin Schulhoff (1894–1942): two numbered string quartets (1924, 1925), one unnumbered quartet (1918), plus a Divertimento, Op. 14 -1914 and a set of Five Pieces -1923
• Paul Hindemith (1895–1963): a violist, wrote seven string quartets
• Dane Rudhyar (1895–1985): Crisis and Overcoming (1978), Advent -1976
• Roberto Gerhard (1896–1970): two string quartets (1950–5, 1960–2 [19]. Three earlier quartets at least are lost.)
• Howard Hanson (1896–1981): one string quartet in one movement, his Op. 23 -1923
• Roger Sessions (1896–1985): two string quartets (1938, 1951,) Canons to the memory of Stravinsky -1971
• Virgil Thomson (1896–1989): wrote two string quartets (1931 and 1932)
• Henry Cowell (1897–1965): wrote four
• John Fernström (1897–1961): wrote eight
• Erich Wolfgang Korngold (1897–1957): perhaps better known for his movie scores, his formal works include three string quartets, Op. 16 in A (1923), Op. 26 in E♭(1933), Op. 34 in D -1945
• Francisco Mignone (1897–1986): wrote two, both in 1957
• Quincy Porter (1897–1966): wrote nine (No. 1 in E minor, 1922–3; No. 9, 1958.)
• Alexandre Tansman (1897–1986): wrote nine (one lost, replaced by Triptych) ([20] for most of that, Fanfare review of a recording for the rest)
• Hanns Eisler (1898–1962): wrote one string quartet, 1937 ([21])
• George Gershwin (1898–1937): wrote one piece for string quartet, a Lullaby, 1919 or 1920
• Viktor Ullmann (1898–1944): three string quartets of which two are lost.
• Pavel Haas (1899–1944): wrote three string quartets from 1920 to 1938
• Hans Krása (1899–1944): one quartet -1921
• Jón Leifs (1899–1968): Icelandic composer, 3 string quartets: No. 1 'Mors et vita', Op. 21, (1939); No. 2 'Vita et mors', Op. 36, (1948–51); No. 3 'El Greco', Op. 64, -1965 (source: Grove)
• Silvestre Revueltas (1899–1940): wrote four quartets
• Alexander Tcherepnin (1899–1977): wrote two quartets (1922, 1926)
• Randall Thompson (1899–1984): wrote two quartets, in D minor (about 1941- possibly earlier, see Library of Congress listing?) and G major -1967
• Laszlo Lajtha (30 June 1892 – 16 February 1963)
  ten string quartets
• Godfried Devreese (1893-1972), string quartet in F (1925)
• Paul Ben-Haim (1897-1984), string quartet No.1 Op. 27 (1937)
• Hans Gal (1890-1987) ,  5 Intermezzi, Op.10,  Quartet No.1 in f minor, Op.16
• Otto Albert Tichy (1890-1973), String Quartet in e flat minor, (1924)
• Werner Wehrli (1892-1944) , Quartet No.2 in G Major, Op.8
• Franz Mittler (1893-1970) , Quartet No.1 in F Major,  Quartet No.2 in e minor, Quartet No.3 in d minor
•  Jaroslav Ridky (Czechoslovakia 1897-1956) String Quartet No. 1 in G sharp minor, Op. 5 (1927) -String Quartet No. 2, Op 9 (1929) -String Quartet No. 3 in A major, Op. 16 (1932) -String Quartet No. 4 in G major, Op. 20 (1933) -String Quartet No. 5 in A minor, Op. 34 (1937) 

Born in the 1900s

• George Antheil (1900–1959): wrote three quartets (1925, 1927, 1948), plus two smaller collections
• Aaron Copland (1900–1990): wrote four pieces for string quartet (1921, unpublished; 1923, 1923, 1928)
• Ernst Krenek (1900–1991): wrote eight, covering a wide range of 20th. Century musical styles.
• Otto Luening (1900–1996): a piece for string quartet published in 1914, and two quartets published by CF Peters as string quartets 2 and 3 in the 1970s (No. 2 dating from 1922, No. 3 from 1927 [22] )
• Alexander Mosolov (1900–1973): probably two quartets (1926, 1943)
• Hans Erich Apostel (1901–1972): wrote two quartets (1935, 1956)
• Ruth Crawford Seeger (1901–1953): String Quartet (1931)
• Edmund Rubbra (1901–1986): wrote four string quartets (No. 1 in F minor, Op. 35, 1933 revised 1946; No. 2 in E♭ Op. 73, 1951; No. 3, Op. 112, 1963; No. 4, Op. 150, 1977; dates from the notes to the Sterling Quartet cycle on Conifer)
• Vissarion Shebalin (1902–1963): wrote nine quartets (1923–1963) 
• William Walton (1902–1983): wrote two string quartets (1922 and 1947)
• Stefan Wolpe (1902–1972): String Quartet (1968–1969)
• Günter Raphael (1903–1960): wrote six quartets (1924–1954)
• Dmitry Kabalevsky (1904–1987): wrote two string quartets (1928 and 1945)
• Nikos Skalkottas (1904–1949): wrote a lot; only 4 works survived (no. 1/1928, no. 3/1935, no. 4/1940 & Zehn Stücke [Skizzen]/1940) plus arrangements of traditional Greek dances
• Alan Rawsthorne (1905–1971): four quartets (1935–1965)
• William Alwyn (1905–1985): wrote three string quartets (1954, 1975 and 1984), Three Winter Poems for string quartet (1948), and a Novelette for String quartet (1938).
• Giacinto Scelsi (1905–1988): wrote five (1944, 1961, 1963, 1964, 1984)
• Michael Tippett (1905–1998): wrote five numbered string quartets plus two unnumbered youthful works
• Eduard Tubin (1905–1982): wrote one string quartet
• Klaus Egge (1906–1979): wrote several
• Ross Lee Finney (1906–1997): wrote eight (No. 1 in F minor (1935) to No. 8 (1960))
• Benjamin Frankel (1906–1973): wrote five (1944–1965)
• Elisabeth Lutyens (1906–1984): wrote 13
• Dmitri Shostakovich (1906–1975): wrote fifteen string quartets, often seen as being as significant works as his fifteen symphonies, but more "private"
• Camargo Guarnieri (1907–1993): two string quartets (1932, 1944)
• Elizabeth Maconchy (1907–1994): thirteen quartets
• Miklós Rózsa (1907–1995): best known for his film scores, Rózsa also composed more formal music including two string quartets, No. 1, Op. 22 (1950) and No. 2, Op. 38 (1981)
• Elliott Carter (1908–2012): wrote five string quartets in the second half of the 20th century; also, Elegy (1948) and Fragments 1 & 2 (1994; 1999); the second quartet won the Pulitzer Prize for Music, 1960; the third, in 1973
• Kurt Hessenberg (1908–1994): eight string quartets (1934–1987) ([24])
• Grażyna Bacewicz (1909–1969): seven string quartets, the first two only recently published and recorded (the others from 1947 to 1965)
• Vagn Holmboe (1909–1996): twenty mature string quartets from 1949 to 1985 (several discarded early works, one last Quartetto sereno completed by Per Nørgård)
• Sir Lennox Berkeley  (12 May 1903 – 26 December 1989)
   String Quartet No. 1, Op. 6 String Quartet No. 2, Op. 15 String Quartet No. 3, Op. 76
• Robert de Roos ( March 10, 1907 - March 18, 1976 Hague)
   String Quartets: V (1951) / II (1945) / VII (1971) / III (1944-45) by Utrecht String Quartet (2010)
• Sándor Veress (1 February 1907 - 4 March 1992) was a Swiss composer of Hungarian origin. String Quartet No.1 1931, no.2 1937
• Lex van Delden, born Alexander Zwaap (10 September 1919–1 July 1988) was a Dutch composer.
   String Quartet No. 1, Op. 43 (1954) - No.2 1965  no.3 1979

Born in the 1910s

• Samuel Barber (1910–1981): wrote the String Quartet No. 1 in B minor, Op. 11 (1936), from which the Adagio for Strings was orchestrated; the String Quartet No. 2, Op. 27 (1948); Serenade for string quartet, Op. 1 (1929), arranged for string orchestra in 1944; Dover Beach, for baritone (or mezzo-soprano) and string quartet, Op. 3; and a single quartet movement (1949) for a quartet whose other movements were never written
• Evgeny Golubev (1910–1988): wrote 24 string quartets (1931–1986)
• William Schuman (1910–1992): wrote five string quartets (1936–1987)
• Bernard Herrmann (1911–1975): best known as a film composer (Citizen Kane, Psycho, Taxi Driver, etc.), Echoes was his only string quartet (1966)
• Arkady Filippenko (1912–1983): Ukrainian composer who wrote three string quartets; No. 1 in A minor, No. 2 in D major, No. 3 in G major. String quartet No. 2 was awarded the U.S.S.R. State Prize in 1948. EditionSilvertrust
• John Cage (1912–1992): String Quartet in Four Parts (1950), Thirty Pieces for String Quartet (1983), Music for Four (the quartet parts extracted from his Music for...) (1987–1988), Four (1989)
• Conlon Nancarrow (1912–1997): wrote three string quartets (1945, ca. 1948, 1987), second incomplete
• Lord Benjamin Britten (1913–1976): wrote three numbered string quartets (1941, 1945 and 1975) plus two early unnumbered ones (1928 and 1931) and a number of other works for string quartet (such as the three Divertimenti, 1933)
• Tikhon Khrennikov (1913–2007): has written three quartets, the third his Op. 33 (1988)
• Witold Lutosławski (1913–1994): wrote one string quartet (1964)
• David Diamond (1915–2005): wrote ten string quartets, from 1940 to 1974
• George Perle (1915–2009): wrote eleven, of which five (1-4, 6) were withdrawn
• Vincent Persichetti (1915–1987): wrote four string quartets (1939, 1944, 1959, 1972)
• Milton Babbitt (1916–2011) wrote five abstract, densely serialistic quartets in the mid-20th century, and a sixth premiered in 2002
• Henri Dutilleux (born 1916): wrote one quartet, Ainsi la nuit (1976)
• Einar Englund (1916–1999): wrote a quartet in 1985
• Alberto Ginastera (1916–1983): four string quartets, 1948 to 1974, the last with baritone to a text from Beethoven's Heiligenstadt Testament
• Brian Boydell (1917–2000): wrote three (1949, 1957, 1969), plus Adagio and Scherzo for String Quartet (1991)
• Lou Harrison (1917–2003): String Quartet Set (1979)
• Isang Yun (1917–1995): wrote six string quartets (No. 1 before 1956, No. 2 withdrawn, No. 3 in 1959, revised in 1961, No. 4 in 1988, No. 5 in 1990 and No. 6 in 1992- information from notes to recording of quartets 3 and 4)
• George Rochberg (1918–2005) wrote seven: the sixth quartet includes a set of variations on Pachelbel's Canon; the second includes a soprano part with texts by Rilke; the seventh includes a baritone part to texts by his late son. String Quartet No. 3 is well known for its supposedly neo-romantic esthetic.
• Sven-Erik Bäck (1919–1994): wrote four (1945, 1947, 1962, 1984)
• Leon Kirchner (1919–2009): wrote four (1949, 1958, 1967, 2007); the third includes a tape part, which won the Pulitzer Prize for Music, 1967
• Mieczysław Weinberg (1919–1996): wrote seventeen, from his Op. 2 (1937 rev. 1986) to Op. 146 (1987) [26]
• Vadim Nikolayevich Salmanov (St Petersburg 4 November 1912 - Leningrad  27 February 1978) six string quartets (1945-71)
• Gottfried von Einem (24 January 1918 – 12 July 1996) was an Austrian composer
  String Quartet Nr.1 op.45
  String Quartet Nr.2 op.51
  String Quartet Nr.3 op.56
  String Quartet Nr.4 op.63
  String Quartet Nr.5 op.87

Born in the 1920s

• Peter Racine Fricker (1920–1990): wrote three string quartets (1947 to 1975)
• Bruno Maderna (1920–1973): Quartetto per archi (ca. 1946); Quartetto per archi in due tempi (1955), dedicated to Luciano Berio
• William Bergsma (1921–1994): wrote five string quartets (1942, 1944, 1953, 1970, 1982)
• Karel Husa (born 1921): has written four; the third quartet won the Pulitzer Prize for Music, 1969
• Andrew Imbrie (1921–2007): has written at least five (fifth written in 1987)
• Joonas Kokkonen (1921–1996): wrote three string quartets (1959, 1966, 1976)
• Robert Simpson (1921–1997): wrote 15 string quartets between 1952 and 1991
• Iannis Xenakis (1922–2001): wrote four works for string quartet: "st/4 — 1,080262" (1955–1962) which was written with the help of an IBM 7090 computer using stochastic algorithms, Tetras (1983), a work in nine sections, Tetora (1990), which means "four" in Dorian, Ergma (1994).
• György Ligeti (1923–2006): String Quartet No. 1 ("Métamorphoses nocturnes") (1953–1954) and String Quartet No. 2 (1968)
• Peter Mennin (1923–1983): wrote two string quartets (1941 and 1951)
• Daniel Pinkham (1923–2006): wrote at least one string quartet
• Mel Powell (1923–1998): Filigree Setting (1959), String Quartet (1982)
• Lejaren Hiller (1924–1994): wrote seven
• Ezra Laderman (born 1924): has written twelve string quartets
• Luigi Nono (1924–1990): wrote Fragmente-Stille, an Diotima for string quartet (1980), inspired by the poetry of Friedrich Hölderlin
•  Veniamin Basner (1925–1996): wrote 5 string quartets – No. 1 Op. 1 (1948) in one movement; No. 2 Op. 5 (1953), a piece in three movements; No. 3 Op. 9 (1960), in four movements; No. 4 Op. 18 (1969), in three movements; and No. 5 Op. 24 (1975), in two movements.^[8]
• Luciano Berio (1925–2003): Quatuor No. 1 (1956), dedicated to Bruno Maderna; Sincronie (1963–64); Notturno (1993); Glosse (1997)
• Pierre Boulez (born 1925): wrote Livre pour quatuor (1949), then withdrew it, recasting some parts later as Livre pour cordes
• Bertold Hummel (1925–2002): wrote String Quartet No. 1, Op. 3 (1951); String Quartet No. 2, Op. 46 (1972); 8 FRAGMENTS from Letters of Vincent van Gogh for Baritone and String Quartet, Op. 84 (1985); Concertante Music for Guitar and String Quartet, Op. 89a (1989)
• Gunther Schuller (born 1925): has written three
• Vladimir Shainsky (born 1925): wrote at least one string quartet
• Boris Tchaikovsky (1925–1996): wrote six (1954–1976)
• Earle Brown (1926–2002): wrote one quartet (1965)
• Morton Feldman (1926–1987): Structures (1951); Three Pieces (1954–1956); 'String Quartet No. 1 (1979), lasts about 100 minutes; String Quartet No. 2 (1983) lasts over six hours
• Hans Werner Henze (1926–2012): wrote five
• Ben Johnston (born 1926): has written ten string quartets – No 1 Nine Variations (1959); No 2 (1964); No 3 Vergings (1966); No 4 Amazing Grace (1973); No 5 (1979); No 6 (1980); No 7 (1984); No 8 (1984–86); No 9 (1987–88); and No 10 (1995). String Quartets Nos 3 and 4 may be performed together as Crossings.
• György Kurtág (born 1926): three works: String Quartet, Op. 1, Hommage à Mihály András (12 Microludes), Op. 13, Officium breve in memorium Andreae Szervánszky, Op. 28
• Thomas Wilson (1927–2001): wrote four string quartets most notably String Quartet No. 3 (1958) McEwen Composition Prize and String Quartet No. 4 (1978), as well as numerous other chamber works
• Thea Musgrave (born 1928): has written one string quartet (1958)
• Einojuhani Rautavaara (born 1928) has written four string quartets
• Ezra Sims (born 1928): String Quartet No. 2 (1962) (really a quintet), Third Quartet (1962)
• Karlheinz Stockhausen (1928–2007): Helikopter-Streichquartett (from "Mittwoch" from "LICHT"), for 4 helicopters & string quartet
• George Crumb (born 1929): String Quartet, and Black Angels (Images I), for electric string quartet
• Peter Sculthorpe (born 1929): eighteen string quartets (up to 2010), of which the first five are considered lost, although isolated movements have been performed and recorded; the twelfth and sixteenth include an optional part for didgeridu; the thirteenth includes soprano voice
• Sir Malcolm Henry Arnold, CBE (21 October 1921 - 23 September 2006)
  String Quartet No. 1 (1949) String Quartet No. 2 (1975)
• Jan CARLSTEDT (1926–2004)
  String Quartet No.1 in D minor Op.2 (1951/2) [19:18]
  String Quartet No.2 Op.22 (1966) [26:34]
  String Quartet No.3 Op.23 (1967)
• Vasilije Mokranjac (1923-1984). String quartet in D

Born in the 1930s

• Tōru Takemitsu (1930–1996) A Way a Lone for string quartet (1981)
• Larry Austin (born 1930): Quartet in Open Style (1964)
• Sofia Gubaidulina (born 1931): has written four string quartets (1971, 1987, 1987, 1994), the last with tape
• Mauricio Kagel (1931–2008): wrote five
• Ib Nørholm (born 1931): has written at least nine, number 1 from 1954 to number 9 his Op. 137 in 1994 ([27], Library of Congress listing of publication has Op. No. )
• James Douglas (born 1932): British Composer of 15 String Quartets.
• Per Nørgård (born 1932): has written ten
• Alexander Goehr (born 1932): four string quartets (Op. 5 (1957), Op. 23 (1967), Op. 37 (1976), Op. 52 (1990))
• Henryk Górecki (1933–2010): String Quartet No. 1 ("Already It Is Dusk"), Op. 62, String Quartet No. 2 ("Quasi una Fantasia"), Op. 64; String Quartet No. 3 (Piesni Spiewaja, "...songs are sung"), Op. 67
• Krzysztof Penderecki (born 1933): has written three string quartets (1960, 1968, 2008); Die Unterbrochene Gedanke (1984)
• R. Murray Schafer (born 1933): eleven string quartets, as of 2006; the seventh quartet includes a soprano part, the fourth and ninth include tape parts; the Molinari Quartet will premiere Schafer's twelfth string quartet in May 2013
• Peter Maxwell Davies (born 1934): String Quartet in One Movement (1961); a few other shorter works; Maxwell Davies was commissioned by Naxos Records to compose ten string quartets, completed in 2007. The recordings are performed by the Maggini Quartet.
• Roger Reynolds (born 1934): Tetra, Coconino . . . A Shattered Landscape
• Alfred Schnittke (1934–1998): wrote four string quartets and a Canon in Memoriam Igor Stravinsky and Variations for string quartet
• Christian Wolff (born 1934): Summer (1960); Lines (1972); String Quartet Exercises Out of Songs (1974–76); For E.C. (2003); for two violinists, violist and 'cellist (2008)
• Helmut Lachenmann (born 1935): three string quartets: Gran Torso (1972), Reigen seliger Geister (1989), and Grido (2001), plus Tanzsuite mit Deutschlandlied for string quartet and orchestra
• François-Bernard Mâche (born 1935): Eridan, String Quartet Op. 57 (1986), written for the Arditti Quartet; Moirés for string quartet and tape, Op. 73 (1994)
• Arvo Pärt (born 1935): Psalom, Summa, and arranged Fratres for string quartet
• Terry Riley (born 1935): String Quartet (1960); returned to pre-composed notated music at the request of the Kronos Quartet in the 1970s: G Song; Sunrise of the Planetary Dream Collector; Cadenza on the Night Plain; Mythic Birds Waltz; Salome Dances for Peace; Requiem for Adam; The Sands for string quartet and orchestra; The Cusp of Magic for string quartet, pipa and assorted toys; Sun Rings for string quartet, choir and backing track of sounds recorded by NASA in space, to name but a few
• Aulis Sallinen (born 1935): five string quartets
• Peter Schickele (born 1935): five string quartets, two quintets with piano
• La Monte Young (born 1935): On Remembering a Naiad (Five small pieces)(1956); Chronos Kristalla (Time Crystals) (1990), where the quartet's strings are tuned to Just intonation, played in natural harmonics throughout, and the performance lasting about ninety minutes
• Iván Eröd (born 1936): has written three quartets: op.18 (1975), op.26 (1978), op.78 (2003) - #2 and 3 recorded by the ALEA Ensemble
• Steve Reich (born 1936): Different Trains (1988), for string quartet and tape; Triple Quartet (1998), which may be performed by one quartet (with tape), three quartets, or a 36 piece orchestra; and WTC 9/11 (2009–10), for string quartet and tape
• Herbert Blendinger (born 1936): has written four quartets: op.11 (1957), op.19 (1969), op.29 (1976), op.54 (1990) - #2, 3 and 4 recorded by the ALEA Ensemble
• Erich Urbanner (born 1936): has written three quartets
• Philip Glass (born 1937): wrote three string quartets as a student, five mature string quartets (1966, 1983, 1985, 1989, 1991), music for string quartet for the 1931 film Dracula (1998) and the suite from Bent (2009)
• Valentin Silvestrov (born 1937): wrote two quartets (1974, 1988), plus Quartetto Piccolo (1961)
• Bart Berman (born 1938): String Quartet (1958); Four Melodies for string quartet (1994)
• Gloria Coates (born 1938): has written nine string quartets up to 2009
• John Corigliano (born 1938): String Quartet (1995), revised for string orchestra as Symphony No. 2 (2000)
• Alvin Curran (born 1938): VSTO (1993)
• John Harbison (born 1938): has written three
• Paavo Heininen (born 1938): String Quartet No. 1, Op. 32c ("Kwartet smyczkowy"); String Quartet No. 2, Op. 64 ("Anadyr.mpl")
• Joan Tower (born 1938): 'Night Fields' (1994), 'In Memory' (2002), 'Incandescent' (2003)
• Charles Wuorinen (born 1938): has written four, plus the short Divertimento and Josquiniana, in six movements based on Josquin des Prés
• Louis Andriessen (born 1939): has written two
• Jonathan Harvey (1939–2012): has written four
• Heinz Holliger (born 1939): has written two (1973, 2007)
• Tom Johnson (born 1939): Formulas for String Quartet (1994) (eight short movements, each following a mathematical formula); Combinations for String Quartet (2003)
• John McCabe (born 1939): wrote five (1960, 1972, 1979, 1982, 1989)
• Tomáš Svoboda (born 1939) has written ten string quartets as of 2009

Born in the 1940s

• Richard Wilson (born 1941): has written four as of 2006
• Chick Corea (born 1941): wrote one specifically for the Orion String Quartet in 2004.
• Ingram Marshall (born 1942): Entrada (At the River) for string quartet amplified with processing, Evensongs, Voces Resonae (1984), and Fog Tropes II
• Meredith Monk (born 1942): Stringsongs for string quartet (2004)
• Horațiu Rădulescu (born 1942): six string quartets, including one (no.4) for quartet plus eight other quartets (live or pre-recorded) circling the audience
• Gavin Bryars (born 1943): has written three (1986 (Between the National and the Bristol), 1990, 1998)
• Krzysztof Meyer (born 1943): has written thirteen (1963, 1969, 1971, 1974, 1977, 1981, 1985, 1985, 1989, 1994, 2001, 2005, 2010)
• Joanna Bruzdowicz (born 1943): wrote two (1983, 1988)
• Brian Ferneyhough (born 1943): Sonatas for String Quartet (1967), String Quartets Nos. 2–6; the fourth includes a part for a soprano; also, Dum Transisset I-IV (2007), "Exordium - Elliotti Carteri in honorum centarii" (2008)
• Paul Lansky (born 1944): String Quartet No. 1 (1967), String Quartet No. 2 (1971–1978), Ricercare (2000)
• Michael Nyman (born 1944): four string quartets, plus a few smaller pieces; a fifth quartet was premiered in 2011
• John Tavener (born 1944): four string quartets: The Hidden Treasure - String Quartet No. 1; The Last Sleep of the Virgin – String Quartet No. 2, for string quartet and handbells; Diódia - String Quartet No. 3; The Bridegroom – String Quartet No. 4; plus other works including parts for string quartet
• Pēteris Vasks (born 1946): has written five string quartets
• Heinz Winbeck (born 1946): The composer of five symphonies wrote three string quartets (as of 2011), entitled Tempi capricciosi Tempi notturni (both 1979) and Jagdquartett (Hunting quartet) (1984)
• John Adams (born 1947): wrote John's Book of Alleged Dances in 1994 for the Kronos Quartet; String Quartet No. 1 (2008)
• Salvatore Sciarrino (born 1947): wrote Sei quartetti brevi (1967–1992), as well as String Quartet No. 7 (2000)
• Peter Ruzicka (born 1948): has written six quartets; the fourth includes a part for a speaker; the sixth includes a part for a soprano
• Julia Tsenova (1948–2010): wrote String Quartet No. 1 (2003)
• David L. Post (born 1949): has written four string quartets—No. 1 (1992), No. 2 (2001), No. 3 (2003) and No. 4 (2005). He has also written a Fantasia on a Virtual Choral for String Quartet (2003)^[7][8]
• Kevin Volans (born 1949): eleven string quartets, plus a short quartet movement; the Callino Quartet premiered String Quartet No. 11 in March 2013

Born in the 1950s

• James Dillon (born 1950): has written six quartets
• Lorenzo Ferrero (born 1951): Tempi di quartetto (1996–1998); Five Aztec Gods (2005)
•  Aleksander Lasoń (born 1951): has written seven quartets, as of 2007
• Lois V Vierk (born 1951): Into the brightening air (1994/1999), dedicated to Mel Powell and River Beneath the River (1993)
• George Tsontakis (born 1951): Five String Quartets (1980–2006) ( Tsontakis Worklist at Presser)
• Hans Abrahamsen (born 1952): String Quartet No. 1 "Ten Preludes" (1973); String Quartet No. 2 (1981)
• Simon Bainbridge (born 1952): String Quartet (1972)
• Reinhard Febel (born 1952): String Quartet (1981/82)
• Bunita Marcus (born 1952) The Rugmaker (1986)
• Wolfgang Rihm (born 1952): has written thirteen quartets, as of 2012, plus the elegical, "Grave" (2010)(in memory of Thomas Kakuska, late violist of the Alban Berg Quartet)
• Kaija Saariaho (born 1952): Nymphea (Jardin Secret III) (1987) for string quartet and live electronics
• Georg Friedrich Haas (born 1953): has written seven
• John Zorn (born 1953): Forbidden Fruit for voice, string quartet & turntables (1987), Cat o' Nine Tails (or, Tex Avery Directs the Marquis de Sade) (1988), The Dead Man (1990), Memento Mori (1992), Kol Nidre (1996), Necronomicon (2003)
• Beat Furrer (born 1954): has written three (1984, 1988, 2004)
• Carl Vine (born 1954) Australian composer, five string quartets to date, of which 3 and 4 have been recorded: Knips Suite (String Quartet No. 1) (1979); String Quartet No. 2 (1984); String Quartet No. 3 (1994); String Quartet No. 4 (2004); String Quartet No. 5 (2010)
• Arturo Rodas (born 1954) Ecuadorian composer, A - B - C - D for string quartet (1989); Fuga Atonal II for string quartet (2008) ^[9]
• Pascal Dusapin (born 1955): has written seven quartets (1982, 1989, 1992, 1997, 2005, 2009, 2010); his sixth quartet is for string quartet and orchestra
• Sinan Savaskan (born 1954): has written three quartets ; his third quartet Panic in Needle Park is for string quartet and for channel electro acoustic music
• John Woolrich (born 1954): has written two quartets
• Nigel Keay (born 1955) two quartets (1983, 1995) [28]
• Don Rath Jr (born 1956) : Prolific composer for the stringed instruments, many quartets.
• Bob Ostertag (born 1957): All the Rage (1992)
• Gerhard Präsent (born 1957): has written four quartets: Music for Strings (1977/78); La Tâche (1994/95), Missa (2001); Big Apple (2007/08) - #2, 3 and 4 recorded by the ALEA Ensemble
• Vahktang Kakhidze (born 1958): String Quartet (1978/79)
• Julia Wolfe (born 1958): released an album of string quartets, The String Quartets: Dig Deep, Four Marys, and Early that summer (1991)
• Lawrence Dillon (born 1959): Invisible Cities String Quartet Cycle - String Quartet No. 1: Jests and Tenderness (1998); String Quartet No. 2: Flight (2002); String Quartet No. 3: Air (2005); String Quartet No. 4: The Infinite Sphere (2009); String Quartet No. 5: Through the Night (2009); String Quartet No. 6: REM (2014)
• David Johnstone (born 1959): 9 Romantic European Pieces for String Quartet (2004) recorded by the Gala Quartet for Creighton's Collection ^[10]
• Patrick Jonathan (born 1959): String Quartet (2006)
• Robert Scott Thompson (born 1959): American composer. Dissipative Structures for String Quartet (1981), premiere by Harvard String Quartet, Cabrillo Music Festival. First Prize in open competition.
• Shigeru Kan-no (born 1959): Japanese composer. wrote 10 String Quartets up to 2008.
• James MacMillan (born 1959): Scottish composer, three string quartets
• Otomar Kvěch (b 25 May 1950)
  String Quartet No. 1 (1972)
  String Quartet No. 2 (1973)
  String Quartet No. 3 (1974)
  String Quartet No. 4 (1979)
  String Quartet No. 5 (1985)
  String Quartet No. 7 (2002)
  String Quartet No. 8 with solo soprano (2005)
  String Quartet No. 6 "Mozartův stesk" (Mozart's Nostalgia) (2006)

Born in the 1960s

• Laura Schwendinger (born 1962): "String Quartet in Three Movements" (2001)
• Aaron Jay Kernis (born 1960): 2 string quartets, No. 1 Musica celestis (1990), No. 2 Musica instrumentalis (1998). He received the 1998 Pulitzer Prize for Quartet No. 2.
• William Susman (born 1960): Four string quartets.
• Ezequiel Viñao (born 1960): wrote three quartets, as of 2009: La Noche de las Noches (1989); The Loss and the Silence (2004) and Sirocco Dust (2009)
• Jorge Grundman (born 1961): Fragment for String Quartet (2004), Surviving a Son's Suicide (2009), God's Sketches for String Quartet, Soprano and Mallets (2012). The last both recorded by Brodsky Quartet.
• Lowell Liebermann (born 1961): has so far written four string quartets: String Quartet No. 1, Op. 5 (1979), String Quartet No. 2, Op. 60 (1998), String Quartet No. 3, Op. 102 (2007) and String Quartet No. 4, Op. 103 (2007)
• Edgar Meyer (born 1961): released an album mostly of string quartets, Short Trip Home (1999)
• Rodney Waschka II: String Quartet: Laredo (1999) String Quartet: Ha! Fortune (2003) both recorded by the Nevsky String Quartet on Capstone Records.
• Jennifer Higdon (born 1962): Seven works for string quartet: Autumn's Cricket (1987), Voices (1993), Sky Quartet (1997 revised 2001), Amazing Grace (2003), Impressions (2003), Southern Harmony (2003), and An Exultation of Larks (2005).
• Andersen Viana (born 1962): wrote five quartets (1984,1990,1990,1996,1998)
• Fredrik Sixten (born 1962) Chaconne (2007) recorded by the Swedish radio. "Contrasts" for stringquartett (1984)
• Graham Waterhouse (born 1962) composed Hungarian Polyphony (1987) and Chinese Whispers (2010), among others.
• Graham Fitkin (born 1963): Servant (1992); Pawn (2005).
• Maarten Regtien (born 1963): Dutch composer; 11 string quartets, among them: Die Fransösische Reise (2001), Die Pölnische Reise (2003), Juana la Loca plays "Beethoven & Friends" (2006).
• Sophie Lacaze (born 1963): Het Lam Gods (2005)
• Joseph Hallman: Philadelphia composer, many string quartets for multiple groups, including "the not-so-magnificent cadaver", "musings", and "compliments". Also notable are his transcriptions of contemporary pop songs for gospel singer and string quartet.
• Ian Wilson (born 1964): Thirteen string quartets, as of 2012
• Matthew Davidson (born 1964): Three string quartets: Music for String Quartet (1988); I Had Five Long years (1991); Quartetto dell'Arte (2012)
• Nico Dezaire (born 1965): Books: Strings Together (2006); Sunny Strings (2009)
• Roberto Carnevale (born 1966): Italian composer. Quartuccio (1996); Il mio quartetto (2002).
• Vanessa Lann (born 1968): "Lullabye for a Young Girl Dreaming" (1990); "Landscape of a Soul's Remembering" (2006)

Born in the 1970s

• Donnacha Dennehy (born 1970): Irish composer, Ecstasis, full stop (1999), Counting (2000), Pushpulling (2007), Stamp (2008), One Hundred Goodbyes (2011).
• David Horne (born 1970): Surrendering to the Stream (1993), Undulations (1996), Subterfuge (^{[year missing]}), String Quartet No. 3 "Flight from the Labyrinth" (2005), String Quartet No. 4 (2006).
• Branimir Krstic (born 1970): American composer. String Quartet "Vukovar" (1990); String Quartet No. 2 (1996); String Quartet No. 3 ("The Waves", 1997).
• Troy Lennerd (born 1970): "Miniatures for String Quartet" (2001)
• Sef Albertz (born 1971): Dialogs (string quartet No. 1) (1988)
• Yitzhak Yedid (born 1971): Israeli composer, 'Visions, Fantasies and Dances' 60 minutes in 7 parts (2007)
• Edward Top (born 1972) composed two string quartets (1998, 2002).
• Henry Vega (born 1973) American composer living in The Hague, The motion of arrayed emotion (2011), for string quartet and computers.
• Jörg Widmann (born 1973): German composer, 5 one-movement string quartets (1997–2005) that form a cycle
• R. Luke DuBois (born 1975): American Composer, Hard Data (2009)
• Jefferson Friedman (born 1974): American composer, 3 string quartets (1996,1999,2005)
• David Philip Hefti (born 1975): Swiss composer, Ph(r)asen – String Quartet No. 1 (2007); Guggisberg-Variationen – String Quartet No. 2 (2008)
• Kasia Glowicka (born 1976): Polish composer, "Springs and Summers" (1999), for string quartet and countertenor, music set to Shakespeare's sonnets
• David Flynn (born 1977): Irish composer, three string quartets to date. String Quartet No. 1 "Fairground Attractions" (2003), String Quartet No. 2 "The Cranning" (2004–2005), String Quartet No. 3 "The Keening" (2007), Flynn received the 2004 Huddersfield Contemporary Music Festival Composers Award for "Slip" the first movement of Quartet No. 2
• Soni Petrovski (born 1977): Macedonian composer, String Quartet (1998)
• Jimmy Lopez (born 1978): Peruvian composer, string quartet "La Caresse du Couteau" (2004)
• Dinesh Subasinghe (born 1979): Sri Lankan composer, string quartet "Night Before the Battle" (2011)

Born in the 1980s

• Paul McCorriston (born 1980): Canadian Composer, String Quartet No. 1 (2004)^[11]
• Richard Zarou (born 1981): American composer, String Quartet "Retreating From the Light" (2003)
• Alin Gherman (born 1981): Belgian Romanian composer, "Mouths & strings" for string quartet (2005)
• Giovanni Albini (born 1982): Italian composer. String Quartet No. 2 "Larsenian Elegy" (2005), String Quartet No. 3 "Snowing L.A." (2006) finalist for the Aberdeen Music Prize 2007 (recorded by the BBC).
• Mohammed Fairouz (born 1985): American composer, String Quartet Lamentation and Satire (2008), Chorale Fantasy for String Quartet (2010).
• Mark Buller (born 1986): American composer, String Quartet No. 2 (2009)
• John Van Geem (born 1987): American composer, 100 String Quartet Series (2012)

notes: this list is a combination of Wikipedia's article and my additional list of composers. The additional list can be found separated in each yearly sections. You will notice a differences in fonts and format. **** Please referred a link to this blog when you shared this list. ****