Brands
- Sharpening Rod
- Sheath
- Sheaths
- Sheffield
- Shelham
- Shergrip
- Shibazi
- Shimano
- Shoceram 21
- Shrade
- Shrade-Walden
- Shun
- Shure Edge
- Sid Latham
- Silky
- Silver Knight
- Silver Stag
- SK
- Skachet
- Skoz
- Slysteel
- Smith & Wesson
- Smith and Wesson
- Smoky Mountain
- Snap On
- Snap-on
- SNP
- Soffe
- SOG
- Solar
- Solingen
- SOS
- Spalding
- Spokane Leather
- Spouting Whale
- Spyderco
- SS-Cut
- Stainless Japan
- Stainless Supreme
- Standing Stone Cutlery
- Stanley Rogers
- Star
- Steer
- Steve Jernigan
- Stidhams Knives
- Stone
- Style
- SureFire
- Survirai?
- SVORD
- Swamp Fox
- Swan
- Swanner
- Swanner Cut Co.
- Swiss Army
- Switzerland
- Synanon
- Syracuse Knife Company
- T.S. Corp
- Taiwan
- Taiwan Vietnam Remembered
- Taiyo
- Tak
- Tak Blade
- Tak Fukuta
- Takeshi Saji
- Tako
- Tarani
- TASCO
- Tatou
- Taylor Cutlery
- Taylor Seto
- Taymor
- Technicraft
- Tekna
- Terryberry
- The Ideal
- Theater
- Things Remembered
- Thommes Diving
- Thornton
- Tiger
- Tim Holt
- Timberline
- Tom Buckner
- Tom Mix
- Tomahawk
- Tomcat
- TOP
- Trentham
- Trim
- Tropicana
- Tru-Bal
- Tsuge
- TWI-Craft
- Uline
- Ulster
- UMC
- Unbranded
- Underwater Kinetics