Group
- Chicago Pervasive Games1
- Chicago Public Library1
- Chicago Public Library 1
- Chicago Swordplay Guild1
- Chicagoland Costumers Guild1
- Chimera Productions1
- Chonky1
- Choppy Games1
- Chris Kennedy Ent.1
- Chris Kennedy Publishing1
- Chris Thesing1
- Christian Gamers' Guild1
- Chronicle RPG Accessories1
- Chuck Budreau1
- Cincinnati arsenal gaming 1
- Circle City of Death1
- Citizens of Lorcana1
- Colin Oneill1
- Colleen Green1
- College of DuPage1