Groups
- C.A.P.E. (Cape Amateur Performers and Entertainers)
- Cape Cornwall School, Cape Cornwall Rd, Penzance, Cornwall, TR19 7JX, South West
- C.A.T.S. ~ Cheadle Amateur Theatrical Society
- Cheadle Community Theatre, Cheadle Academy, Station Road, Cheadle, Staffordshire, ST10 1LH, West Midlands
- C&D Productions Theatre Company
- C&D Productions, 105 Wellington St, Kettering, Northamptonshire, NN16 8RJ, East Midlands
- CADOS
- Mornington Hall, Green Walk, Chingford, London, E4 7EN, London
- Cambridge Amateur Drama Group
- Fulbourn Institute Sports & Social Club, Home End, Fulbourn, Cambridgeshire, CB21 5BS, Eastern
- Campaign Amateur Theatre
- Little Thetford Village Hall, The Wyches , Ely, Cambridgeshire, CB6 3HG, Eastern
- Cannock Wood And Gentleshaw Musical Society
- Longdon Village Hall, Brook End, Longdon, Staffordshire, WS15 4PN, West Midlands
- Canterbury Players ADS
- Methodist Church Hall, Brook Road, Flixton, Greater Manchester, M41 5RQ, North West
- CAODS
- New Theatre Royal, Clasketgate, Lincoln, Lincolnshire, LN2 1JJ, East Midlands
- CAODS
- Civic Theatre, Fairfield Road, Chelmsford, Essex, CM1 1JG, Eastern
