| Steiner, Johannes | Johannes Steiner | Composer | 2013 | 1 | |
| Schreiter, Ryszard | Ryszard Schreiter | Composer | 1958 | 1 | |
| Swift, Richard | Richard Swift | Composer | 1958 | 1 | |
| Skiadaresis, Spyros | Spyros Skiadaresis | Composer | 1957 | 2 | |
| Savidis, Jannis | Jannis Savidis | Composer | 2013 | 1 | |
| Schellenkens, Jorg | Jorg Schellenkens | Composer | 2017 | 1 | |
| Sgambati, G. | G. Sgambati | Composer | 1942 | 1 | |
| Saastamoinen, Ilja | Ilja Saastamoinen | Composer | 1976 | 1 | |
| Severtson, Paul | Paul Severtson | Composer | 1971 | 1 | |
| Salonikiou, Eirini | Eirini Salonikiou | Composer | 1971 - 1973 | 2 | |
| Sønstevold, Gunnar | Gunnar Sønstevold | Composer | 1976 | 1 | 1 |
| Simoncini, Ivan | Ivan Simoncini | Composer | 2016 | 1 | |
| Sebastian | Sebastian - | Composer | 1983 | 1 | |
| Scott, Matthew | Matthew Scott | Composer | 1993 | 1 | |
| Sjögren, Emil | Emil Sjögren | Composer | 1889 - 1891 | 2 | 1 |
| Starič, Mateja | Mateja Starič | Composer | 2019 | 1 | |
| Surenovich Khachaturian, Karen | Karen Surenovich Khachaturian | Composer | 1978 | 1 | |
| Stubø, Håvard | Håvard Stubø | Composer | 2020 | 1 | |
| Sahlin, Joel | Joel Sahlin | Composer | 2020 - 2021 | 50 | |
| Sillitoe, Nicholas | Nicholas Sillitoe | Composer | 2004 | 1 | |
| Strangefruit Nyhus, Pål | Pål Strangefruit Nyhus | Composer | 2008 | 1 | |
| Sævik, Knut | Knut Sævik | Composer | 2008 | 1 | |
| Seiss, Curt | Curt Seiss | Composer | 2006 | 1 | |
| Silverman, Nischom | Nischom Silverman | Composer | 2006 | 1 | |
| Sumera, Lepo | Lepo Sumera | Composer | 1989 | 1 | |
| Somers, Harry | Harry Somers | Composer | 1966 | 1 | |
| Steffensen, Audun Aschim | Audun Aschim Steffensen | Composer | 2022 - 2024 | 2 | |
| Sfeir, Joseph Junior | Joseph Junior Sfeir | Composer | 2022 | 1 | |
| Suske, Jakob | Jakob Suske | Composer | 2022 | 1 | |
| Shrubsole, David | David Shrubsole | Composer | 2019 | 1 | |
| Scacchetti, Sirio | Sirio Scacchetti | Composer | 2024 | 2 | |
| Slabiak, Eric | Eric Slabiak | Composer | 2008 | 1 | |
| Sifonia , Liberato Firmino | Liberato Firmino Sifonia | Composer | 1962 | 1 | |
| Sturno, Vanja | Vanja Sturno | Composer | 2024 | 1 | |
| Spasov, Teodosii Miroslavova | Teodosii Miroslavova Spasov (Теодосий Спасов) | Composer | 2024 | 1 | |
| Straker, Amy | Amy Straker | Composer | 2024 | 1 | |
| Solís, Manu | Manu Solís | Composer | 2024 - 2025 | 13 | |
| Sosārs, Burhards | Burhards Sosārs | Composer, Conductor | 1923 - 1939 | 2 | |
| Schultz, Svend, S. | Svend S. Schultz | Composer, Conductor | 1957 | 2 | |
| Sæverud, Harald | Harald Sæverud | Composer, Conductor, Musician | 1948 - 2021 | 23 | 1 |
| Solomonidou-Balanou, Elli | Elli Solomonidou-Balanou | Composer, Costume Designer | 1962 - 1993 | 5 | |
| Svoboda, Milan | Milan Svoboda | Composer, Director | 1928 - 2012 | 8 | 1 |
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