- Colnbrook - 7 companies
- Colnbrook, Slough - 1 company
- Colne - 32 companies
- Colwick - 2 companies
- Colwyn Bay - 17 companies
- Colyton - 2 companies
- Combe Martin - 1 company
- Congelton - 1 company
- Congleton - 59 companies
- Congresbury - 1 company
- Coningsby - 1 company
- Coniston - 3 companies
- Consett - 23 companies
- Conwy - 9 companies
- Conwy County - 1 company
- Cookstown - 24 companies
- Copthorne - 5 companies
- Corbridge - 1 company
- Corby - 91 companies
- Corfe Mullen - 1 company
- Cork - 1 company
- Cornwall - 32 companies
- Corringham - 1 company
- Corsham - 23 companies
- Corwen - 6 companies
- Cosby - 1 company
- Coseley - 1 company
- Cotgrave - 1 company
- Cottingham - 8 companies
- Coulsdon - 17 companies
- Coundon - 1 company
- Country Durham - 1 company
- County Antrim - 4 companies
- County Armagh - 3 companies
- County Borough of Conwy - 1 company
- County Cork - 1 company
- County Down - 5 companies
- County Durham - 22 companies
- County Meath - 1 company
- County Tyrone - 1 company
- Covent Garden - 6 companies
- Coventry - 431 companies
- Cowbridge - 13 companies
- Cowdenbeath - 4 companies
- Cowes - 14 companies
Towns 226 to 270 | Page 6 of 8
