Editura
Sybex-Europe
Sylvester János Könyvtár
Sylvester Rt.
Sylvester-Nyomda R.-T.
Symbol
Symmetric Studios
Symphologic Publishing
Symposion
Synergy Books
Syntagma Media 2004
Syntagma Media 2005
Syrinx
Syros
Syros Alternatives
Syros Jeunesse
Sysound Records & Studios