- Sabatti
- Safariland Group
- Sako
- Salient Arms International
- Sarsilmaz
- Sauer
- Savage Arms
- Schmidt & Bender
- Seeland International
- Semiautomatic pistols
- Semiautomatic rifles
- Semiautomatic shotguns
- Shotguns
- SHOTHUNT
- SHOT Show
- SHOT Show 2014
- SHOT Show 2015
- SHOT Show 2016
- Sierra Bullets
- SIG Sauer
- SilencerCo
- Sino Defense Manufacturing
- Smartreloader
- Smith & Wesson
- Softair
- SOG Knives
- Sphinx
- Sporting rifles
- Sporting shotguns
- Sport Shooting
- Springfield Armory
- Spyderco
- SRM Arms
- Steiner Optics
- Steyr Mannlicher
- STI International
- Stoeger
- Streamlight
- Sure Fire
- Swarovski Optik
