| | C4
Park Farm Studio, NORWICH. NR9 3DL | | | | | |
| | C4 AUDIO LIMITED
389 Edgware Road, Colindale, LONDON. NW9 6NJ | | | | | |
| | C4 CARBIDES LIMITED
9 Nuffield Road, CAMBRIDGE. CB4 1TF | | | | | |
| | C4 CARBIDES LTD
9 Nuffield Road, CAMBRIDGE. CB4 1TF | | | | | |
| | C4 CLEARANCE LTD.
22 Wargrave Road, NEWTON-LE-WILLOWS. WA12 9QZ | | | | | |
| | C4 COMMUNICATION BENELUX LIMITED
The Laden Building, 103 Brick Lane, LONDON. E1 6SE | | | | | |
| | C4 CONSTRUCTION LTD
88 Ash Grove, Wavertree, LIVERPOOL. L15 1ET | | | | | |
| | C4 CONSULTING LLP
Cinnamon House, Cinnamon Pk, Crab la, WARRINGTON. WA2 0XP | | | | | |
| | C4 CONSULTING LLP
Cinnamon House Cinnamon Park, Crab Lane, Fearnhead, WARRINGTON. WA2 0XP | | | | | |
| | C4 DEFENCE AND AEROSPACE LIMITED
The Old Granary 7 Barges Close, Litton Cheney, DORCHESTER. DT2 9DR | | | | | |
| | C4 DISTRIBUTION LIMITED
Unit 14 Lfe Business Park, Curriers Close, COVENTRY. CV4 8AW | | | | | |
| | C4 ELECTRONICS LIMITED
4 Enterprise Court, Downmill Road, BRACKNELL. RG12 1QS | | | | | |
| | C4 EXPRESS LIMITED
Unit 14 Lfe Business Park, Curriers Close, COVENTRY. CV4 8AW | | | | | |
| | C4 FIRE PROTECTION LIMITED
90 Wright Way, Stoke Park, BRISTOL. BS16 1WH | | | | | |
| | C4 FUNDING LIMITED
Chester House, 17 Gold Tops, NEWPORT. NP20 4PH | | | | | |
| | C4 INDUSTRIES LIMITED
Units 3-5 Yardley Road, Knowsley Industrial Park, LIVERPOOL. L33 7SS | | | | | |
| | C4 LOGISTICS LIMITED
Unit 14 Lfe Business Park, Curriers Close, COVENTRY. CV4 8AW | | | | | |
| | C4 MULTIMEDIA
Norwich Rd, NORWICH. NR9 3DL | | | | | |
| | C4 SIGHT CARE
15 Newgate Shopping Centre, NEWCASTLE UPON TYNE. NE1 5RB | | | | | |
| | C4 SOLUTIONS LIMITED
144 Cartland Road, Stirchley, BIRMINGHAM. B30 2SG | | | | | |
| | C4 SYSTEMS LIMITED
21 Cambridge Crescent, BRISTOL. BS9 3QG | | | | | |
| | C4 VISIONS & PROJECTS LTD
2ND Floor West Thrale House, 44-46 Southwark Street, LONDON. SE1 1UN | | | | | |
| | C41 S LIMITED
137 Brook Street, CHESTER. CH1 3DU | | | | | |
| | C4B LIMITED
5 Albyn Place, EDINBURGH. EH2 4NJ | | | | | |
| | C4C LIMITED
The Alders 7 Ley Rise, Sedgley, DUDLEY. DY3 3EU | | | | | |
| | C4C SOLUTIONS LIMITED
6 Broom Close, KENDAL. LA9 6BN | | | | | |
| | C4C SOLUTIONS NORTH WEST LIMITED
6 Broom Close, KENDAL. LA9 6BN | | | | | |
| | C4C SOLUTIONS WEST LIMITED
167 Grange Road, Tuffley, GLOUCESTER. GL4 0NP | | | | | |
| | C4CLICKS LTD
2ND Floor, 145-157 St John Street, LONDON. EC1V 4PY | | | | | |
| | C4COMMUNICATION LIMITED
Empire House Suite 101, 1 Empire Way, WEMBLEY. HA9 0EW | | | | | |
| | C4D COMMUNICATIONS FOR DEVELOPMENT LIMITED
39 Tottenham Street, LONDON. W1T 4RX | | | | | |
| | C4D NETWORK LIMITED
121 Maldon Road, BRIGHTON. BN1 5ND | | | | | |
| | C4E TREASURY LTD
Suite 5 2ND Floor, Viking House Lodge Lane, Daneholes Roundabout, GRAYS. RM16 2XE | | | | | |
| | C4FS
Unit 1, Cheetah Rd, COVENTRY. CV1 2TL | | | | | |
| | C4I CONSULTING LTD
14 Langford Close, Dodworth, BARNSLEY. S75 3TP | | | | | |
| | C4I LIMITED
C/O Bcb International Limited, Clydesmuir Road Industrial, Estate, CARDIFF. CF24 2QS | | | | | |
| | C4IDEAS LIMITED
76 Kitchener Avenue, DERBY. DE23 8AH | | | | | |
| | C4O LIMITED
The Water Mill, Broughton Hall Business Park, SKIPTON. BD23 3AG | | | | | |
| | C4OUR LIMITED
City Wharf New Bailey Street, MANCHESTER. M3 5ER | | | | | |
| | C4P LTD
47 Birchdale Road, Appleton, WARRINGTON. WA4 5AW | | | | | |
| | C4R5 COMPUTER REPAIRS
Flat 13, Denewood House, 63 Benhill Av, SUTTON. SM1 4DD | | | | | |
| | C4U LTD
55 Mildenhall Road, SLOUGH. SL1 3JH | | | | | |
| | C4U ONLINE LIMITED
Lombard House, Cross Keys, LICHFIELD. WS13 6DN | | | | | |
