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| Campbeltown Sailing Club | View |
| Canford School Sailing Club | View |
| Cardiff Bay Yacht Club | View |
| Cardiff Yacht Club | View |
| Carlingford Lough Yacht Club | View |
| Carnoustie Yachting And Rugby Club | View |
| Carsington Sailing Club | View |
| Castle Cove Sailing Club | View |
| Challenger Class Association | View |
| Chanonry Sailing Club | View |
| Chapman Sands Sailing Club | View |
| Charterhouse Sailing Club | View |
| Chase Sailing Club | View |
| Chester Sailing And Canoeing Club | View |
| Chester Unit S C C Ts Deva | View |