| # | Company name | Role | # of projects |
|---|---|---|---|
| 41 | Calcio Padova | Sports team | 1 |
| 42 | Calcio Trento | Sports team | 1 |
| 43 | Caldas Novas Esporte Clube | Sports team | 1 |
| 44 | Caldas SC | Sports team | 2 |
| 45 | Caledonia AIA | Sports team | 1 |
| 46 | California Golden Bears | Sports team | 2 |
| 47 | California Jaguars | Sports team | 1 |
| 48 | Calvi Guayaquil | Sports team | 1 |
| 49 | Camaçari Futebol Clube | Sports team | 1 |
| 50 | Cambridge United Football Club | Sports team | 1 |
| 51 | Cambuur Leeuwarden | Sports team | 1 |
| 52 | Camden Riversharks | Sports team | 1 |
| 53 | Campbellton Tigers | Sports team | 1 |
| 54 | Campinense Clube | Sports team | 1 |
| 55 | Cãn Tho' | Sports team | 1 |
| 56 | Canarias Telecom | Sports team | 1 |
| 57 | Canberra Raiders RLC | Sports team | 1 |
| 58 | Canelas | Sports team | 1 |
| 59 | Cañeros de Los Mochis | Sports team | 1 |
| 60 | Càng Sài Gòn | Sports team | 1 |