Group
- Brewcity Gamers1
- Bully Pulpit Games LLC1
- By Night Studios12
- CCP/White Wolf5
- Camarilla Fan Club (Midnight Dance)8
- Catalyst Demo Team1
- Catalyst Game Labs6
- Center for Learning through Game and Simulations CMU1
- Central Michigan University1
- Chaosium Inc1
- Chaosium, Inc.2
- Chicago ConLARP217
- Chicago Dungeon Crawl422
- Chimera Productions1
- City of Glass Games17
- CoGG26
- Columbia Games1
- ConTessa8
- Crafty Games6
- Cthulhu International 2