- OJF Electrical Ltd - 12 Burns Cresent, Chelmsford, Essex, CM2 0TS
- OK International (Europe) Ltd - OK House, Stanton, Suffolk, IP31 2AR
- Ok Joinery Ltd - Unit 23, Hoobrook Enterprise Centre,, Kidderminster, DY10 1HB
- OK Social - 64 Quarry Hill Rd, Tonbridge, Kent, TN9 2PE
- Okel Ltd - The Whitehouse, Warrington, Cheshire, WA4 6HL
- OKM Solutions Ltd - Unit 25, Vale Industrial Park, London, London, SW16 5BN
- Oktra - Hyphen, Manchester, M2 3HR
- OKW Enclosures Ltd - 15 Brunel Way, Fareham, Hampshire, PO15 5TX
- Old Flames Ltd - 10 Waverley Drive, Aldershot, Hampshire, GU12 5JW
- Old Ford Auto Services - Park Farm, West End Lane, Bracknell, Berkshire, RG42 5RH
- Old Harbour Dive Centre - 11 Nothe Parade, Weymouth, Dorset, DT4 8TX
- Old Mill Furniture - Balk, Thirsk, North Yorkshire, YO7 2AH
- Oldbury - Balliol Business Park, Wolverhampton, West Midlands, WV9 5EU
- Olde Worlde Oak Joinery - Unit 12, Cannock, Staffordshire, Ws11 0DG
- Oldeani Ltd - Hoffmanns House, Essex, CM1 1GU
Companies 271 to 285 | Page 19 of 59
