- Show-Biz Services
- Showdown Creations
- Siam Magic Company Ltd.
- Sid T
- Signature Media Services
- Sigrid La Chapelle Delane
- Silly Billy Entertainment
- Simon & Schuster
- Simon Aronson
- Skindell Magic
- Skulkor
- Sky Nerd Studios
- Skyhorse Publishing, Inc.
- Skymember Presents
- SM Productionz
- Smagic Productions
- Smith Mountain Lake Magic & Science
- Smoke and Mirrors Enterprises
- So Magic Evenements
- Soma Show
- Sorcery Shop
- Sorrento Art Supplies
- Southern Specialties
- Spaaaade & Co
- SPAAAADE & Co.