| Cad (Norwalk, Connecticut) |
| California (Mission Viejo, California) |
| Canetoad (Potts Point, New South Wales, Australia) |
| Cargo (San Diego, California) |
| Castle (Chessington, Surrey) |
| Cher-Media (Canada) |
| Cherrydisc (Boston, Massachusetts) |
| Cherry Red (London, UK England) |
| Chicken Foot (Leeds, UK England) |
| Chicken Ranch (Austin, Texas) |
| Coldfront (Berkeley, California) |
| Collectables (Narberth, Pennsylvania) |
| Collector (Oud Beyerland, The Netherlands) |
| Collectors' Choice (Itacca, Illinois) |
| Color Cookies |
| Columbia/Legacy (New York, New York) |
| Columbia Music Entertainment |
| Condal (Barcelona, Spain) |
| Cordelia (Leicester) |
| Cracked Piston (San Jose, California) |
| Crazy Owl (Grand Bay, Alabama) |
| Crunchy Frog (Denmark) |
| Curb |