| Scanlan, Susan | Susan Scanlan | Composer | 1987 | 1 | |
| Stefano, Flavio | Flavio Stefano | Composer | 1992 - 2011 | 3 | |
| Schischkov, Mihail | Mihail Schischkov | Composer | 1983 - 1996 | 3 | |
| Shihadeh, Habib | Habib Shihadeh | Composer | 2008 | 6 | |
| Schäfer, Andreas | Andreas Schäfer | Composer | 1983 | 1 | 1 |
| Slater, Simon | Simon Slater | Composer | 2012 - 2015 | 2 | |
| Strycharski, Dominik | Dominik Strycharski | Composer | 2012 | 1 | |
| Schurbohm, Ralf | Ralf Schurbohm | Composer | 1999 - 2002 | 3 | 1 |
| Sakamoto, - | - Sakamoto | Composer | 2013 | 1 | |
| Steensland, Simon | Simon Steensland | Composer | 2013 | 1 | |
| Stevens, Sufjan | Sufjan Stevens | Composer | 2013 | 1 | |
| Strawinsky, Igor | Igor Strawinsky | Composer | 1966 - 1985 | 6 | |
| Stokłosa, Janusz | Janusz Stokłosa | Composer | 1986 - 1994 | 3 | |
| Schnittke, Alfred | Alfred Schnittke | Composer | 1989 - 2013 | 19 | 1 |
| Sauvageau, Jean | Jean Sauvageau | Composer | 1991 | 1 | |
| Skempton, Howard, While | Howard While Skempton | Composer | 1988 - 1989 | 7 | |
| Solovera, Patricio | Patricio Solovera | Composer | 1980 - 1990 | 2 | |
| Spock, Tom | Tom Spock | Composer | 1992 | 1 | |
| Schambach, Christoph | Christoph Schambach | Composer | 1991 | 1 | |
| Shaw, Francis | Francis Shaw | Composer | 1988 | 1 | |
| Suckel, Alexander | Alexander Suckel | Composer | 1992 | 1 | |
| Skodvin, Knut | Knut Skodvin | Composer | 1988 | 2 | |
| Schönhaar, Bernd | Bernd Schönhaar (Schoenhaar, Bernd) | Composer | 1992 | 1 | |
| Strazds, Armands | Armands Strazds | Composer | 1991 | 1 | |
| Stockhausen, Karlheinz | Karlheinz Stockhausen | Composer | 1982 | 1 | |
| Schreier, Dan Moses | Dan Moses Schreier | Composer | 1994 - 2016 | 2 | |
| Scott, Matthew | Matthew Scott | Composer | 1994 - 2010 | 2 | |
| Schwab, Siegfried | Siegfried Schwab | Composer | 1996 | 1 | |
| Sugimoto, Takashi | Takashi Sugimoto | Composer | 1995 | 1 | |
| Sedlář, Josef | Josef Sedlář | Composer | 1969 | 1 | |
| Susa, Conrad | Conrad Susa | Composer | 1968 | 1 | 1 |
| Sáry, László | László Sáry | Composer | 2013 | 1 | |
| Schönbach, Dieter | Dieter Schönbach | Composer | 1966 | 1 | |
| Swados, Elizabeth | Elizabeth Swados | Composer | 2002 | 1 | |
| Schulz-Wittan, Christine | Christine Schulz-Wittan | Composer | 1997 | 1 | |
| Schinalzki, Rabbit | Rabbit Schinalzki | Composer | 1997 | 1 | |
| Scotti, Gabriel | Gabriel Scotti | Composer | 2003 - 2004 | 5 | |
| Sjöblom, Pia | Pia Sjöblom | Composer | 2001 | 1 | |
| Soteriou, Mia | Mia Soteriou | Composer | 2003 | 2 | |
| Svěrák, Jiří, Šlupka | Jiří Šlupka Svěrák | Composer | 2008 | 2 | |
| Simon, Ladislav | Ladislav Simon | Composer | 1964 | 1 | |
| Szelevényi, Ákos | Ákos Szelevényi | Composer | 2012 - 2013 | 5 | |
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