Publishers – S
Publishers: Salabert - Stefan Grossman's Guitar Workshop
- Salabert
- Salvationist Publishing
- Salvatore Simeoli
- Salvi
- Samek Music
- Sanctuary
- Santorella Publications
- Sara Jordan Publishing
- Saxtet Publications
- SBK Songs
- Scala
- Scarecrow Press
- Schaum Publications
- Schell Music
- Scherzando Music Publishing
- Schirmer
- Schola Cantorum Editions
- Schorer Music Publishing
- Schott
- Schott Archive
- Schroeder and Gunther
- Schuh Verlag
- Schwann Musikverlag
- Schweizer Flötengesellschaft
- Schweizerischer Musikpädagogischer Verband
- Scomegna
- Scores Reformed
- Second Floor Music
- Seeber Film Verlag für Bläsermusik
- Seemann Henschel
- Sellers Publishing
- Sempre Piu Editions
- Serenissima Music
- Seresta Music
- Serie Piper
- Shadow Water Music
- Shapiro Bernstein Archive
- Shawnee Press
- Sheila Wilson
- Sher Music
- Shorter House
- Siebenhüner Musikverlag
- Sierra Music Publications
- Signature Licks
- Sikorski
- Simon & Schuster
- Simrock
- Simton Musikverlag
- Sinfonica
- Sing Out! Publications
- Singing Earth
- Singsing
- SJ Music
- Skandinavisk Musikforlag
- Sketchbook, Sketch Pad, Art Book, Drawing Paper, and Writing Paper Publishing Company
- SmartMusic
- Snowball Publishing
- Solo Series Recordings
- Sony DADC
- Sonzogno
- Soul Drums
- Sound For Health
- Sounds True Inc
- Southern Music
- SP Muusikaprojekt
- Spare Parts ETS
- Spartan Press
- Spellbinding Media
- Spiritoso Muziekuitgeverij
- SR Wheat Organ Co.
- St Francis Publications
- St Rose Publishing
- Stackpole Books
- Stagg Music
- Stainer & Bell
- Star
- Starlicks Publications
- Starshine Music
- Starter Series
- Stefan Grossman's Guitar Workshop
Publishers: Steingräber Verlag - Symphonic Dimensions Publishing
- Steingräber Verlag
- Stephen Dunstone
- Steven Mooney
- Stormworks Europe
- Storyville Records
- Strauss Edition Wien
- String Letter Publishing
- Strings & Things
- Strings Attached
- Strube Verlag
- Studio 100
- Studio Music Company
- Studio Verlag Seifert
- Subito Music Publishing
- Subject Publications
- Sulasol
- Summy-Birchard Inc.
- Sunshine Music Company
- Superbrass Music
- Supraphon
- Sutherland Trading Co.
- Suvini Zerboni
- Swath Publishing
- Swell Recording
- SwirlyGig
- Symphonic Dimensions Publishing