'Leather'
Milt Sparks - Makers of the finest Inside the Waistband (IWB) holster I have ever used. The Executive Companion (Ex).
Kramer Leather - Makers of some of the best handgun leather in the world, especially in horsehide.
TalonTactical - Mike makes GREAT stuff. A master of kydex.
Andy Arratoonian's Horse Leather
Kytac - kydex