| Castleford Tenpin | Unit 25, Colorado Way, Glasshoughton, Castleford, West Yorkshire, WF10 4TA |
| Castleford Tigers Supporters Club | c/o Paul Burns-Williamson, 117 Lower Oxford Street, Castleford, WF10 4AG |
| Castleford Womens Centre | 1 York Street, Castleford, West Yorkshire, WF10 1JS |
| Castleford Young Musicians | 53 Barnes Road, Castleford, West Yorkshire, WF10 5SS |
| Catch A Falling Star: Wakefield Adult Mental Health Support Group | 2a Pledwick Lane, Sandal, Wakefield, West Yorkshire, WF2 6DJ |
| Catchpenny, The | Lane Ends, Fitzwilliam, Pontefract, West Yorkshire, WF9 5AJ |
| Cathedral Centre1 | 8-10 Westmorland Street, Wakefield, West Yorkshire, WF1 1PJ |
| Catteralls Solicitors | 15 King Street, Wakefield, West Yorkshire, WF1 2SL |
| Ceylon Cricket Foundation | 1 Umpire Close, Wakefield, West Yorkshire, WF1 3QR |
| Cheers | 21 Newton Lane, Outwood, Wakefield, West Yorkshire, WF1 3JD |
