| Grimpeurs | Nationalité | Nb de voies |
| 4 | ||
| Mauro Calibani | 1 | |
| Felipe Camargo | 8 | |
| Giuliano Cameroni | 2 | |
| 18 | ||
| Neil Carlson | 1 | |
| Stefano Carnati | 21 | |
| Enrico Cassol | 1 | |
| Francesco Castellano | 1 | |
| Leto Cave | 1 | |
| Christoph Cepus | 1 | |
| 4 | ||
| Killian Chabrier | 1 | |
| Julia Chanourdie | 6 | |
| Quentin Chastagnier | 5 | |
| Tristan Chen | 1 | |
| Mikhail Chernikov | 2 | |
| Adrian Chmiala | 3 | |
| Katherine Choong | 1 | |
| Fabian Christof | 1 | |
| Dylan Chuat | 7 | |
| Paige Claassen | 4 | |
| Maxime Clerc | 2 | |
| Nathaniel Coleman | 3 | |
| Franco Cookson | 1 | |
| Josh Cornah | 1 | |
| Manu Cornu | 1 | |
| Camille Coudert | 2 | |
| Benjamin Cossey | 1 | |
| Jean Elie Crestin Billet | 1 |