- C orby - 1 company
- C Salzbaach - 1 company
- Cabus - 1 company
- Caerdydd - 1 company
- Caernarfon - 11 companies
- Caerphilly - 65 companies
- Caersws - 4 companies
- Cairndow - 1 company
- Caistor - 1 company
- Caithness - 2 companies
- Calcot - 2 companies
- Caldercruix - 1 company
- Caldicot - 14 companies
- Caledon - 1 company
- Callander - 3 companies
- Callington - 12 companies
- Calne - 27 companies
- Calverley - 2 companies
- Calverton - 3 companies
- Camarthenshire - 1 company
- Camberley - 121 companies
- Camberwell - 1 company
- Camborne - 4 companies
- Camborne Cornwall - 1 company
- Cambridge - 351 companies
- Cambridgeshire - 79 companies
- Cambridgshire - 1 company
- Cambrigeshire - 2 companies
- Cambs - 30 companies
- Camden - 2 companies
- Camelford - 3 companies
- Campbeltown - 3 companies
- Canada - 5 companies
- Canary Wharf - 1 company
- Canning Town - 1 company
- Cannock - 138 companies
- Cannon Drive - 1 company
- Canock - 1 company
- Canterbury - 64 companies
- Canton - 1 company
- Canvey Island - 25 companies
- Capel - 1 company
- Cardiff - 300 companies
- Cardiff Bay - 2 companies
- Cardigan - 4 companies
Towns 1 to 45 | Page 1 of 8
