Group
- Cryptozoic Entertainmnet1
- CrystalCommerce2
- Cubicle 7 Entertainment53
- Cut to the Chase Games3
- Cylindrical Head Games1
- D20 Burlesque1
- D20 Hobbies2
- D20Crit1
- DDM Guild5
- DDWRPG/Earthbound TimeLords/MAGE1
- DPH Games Inc.12
- Dan the Bard4
- Dancing and Dragons17
- Dark Sword Miniatures / MHE Crew6
- Darkness Remembered73
- David M. Ewalt1
- Dead Gentlemen Productions7
- Design Mechanism7
- Devious Weasel1
- Devious Weasel Games4