Name
- Biblioteca Musicale Santa Cecilia, of Rome, 1875-1
- Cambridge University Musical Society, 1843-1
- Casa musicale Sonzogno, music publishers, 1874-1
- Czech State Publishing House, fl 1954-19601
- Holst, Imogen, composer and writer on music, 1907-1984, http://isni.org/isni/000000...1
- Kurt Stäheli, booksellers, fl 1954-19601
- Salabert, music publishers of Paris, 1894-1
- Sarrag, Mohamed Ali, of Omdurman; correspondent of Boosey and Hawkes Ltd., fl 1954-19601
- Sassetti, music dealers of Lisbon, 1848-1
- Schlesinger, Fritz G., of Tel Aviv; music dealer, fl 1955-19611
- Schoeck, Othmar, Swiss composer, 1886-1957, http://isni.org/isni/000000...1
- Schönherr, Max, Austrian composer, 1903-1994, http://isni.org/isni/000000...1
- Seccombe, Iris, of the Cambridge University Musical Society, fl 1954-19601
- Seiber, Mátyás György, composer; pseudonym George S Mathis, 1905-19601
- Sekretariat Seefried-Schneiderhan, fl 1954-19611
- Sharpe, Rita, musician, fl early 20th century1
- Simon, Eric, clarinettist, conductor and composer, 1907-19941
- Solti, Georg, Knight, conductor, 1912-1997, http://isni.org/isni/000000...1
- Songwriters' Guild of Great Britain, fl 1954-19571
- Sound Film Music Bureau, Ltd., fl 1947-19601