- Odour Services International Ltd - 14 Morston Court, Cannock, Staffordshire, WS11 8JB
- Odournet UK - Unit 6 Anglo Office Park, Bristol, Avon, BS15 1NT
- Odysseus Advertising - Richmond House, Bournemouth, BH1 1DA
- Odyssey Creative - Flat 3,, Weston-super-Mare,, North Somerset, BS23 3DY
- Odyssey Expo - Florence House, Lucas Green, Woking, Surrey, GU24 9LD
- Odyssey Markides - Elizabeth House, London, Greater London, SE1 7NQ
- Odyssey Technologies Ltd - 2 Hurlands Business Centre, Farnham, Surrey, GU9 9JE
- OEM - Secureseal - 8 Kinetic Crescent, Enfield, Middlesex, EN3 7FJ
- OEM Automatic Ltd - Whiteacres, Whetstone, Leicestershire, LE8 6ZG
- Oerlikon - 9-14 Newton Wood Road, Dukinfield, Cheshire, SK16 4XF
- OES Medical Ltd - ABC House, Whitney, Oxfordshire, OX29 7QG
- Oetiker - Foundry Close, Horsham, Sussex, RH13 5PX
- Off Limits Corporate Events Ltd - East View Terrace, Langley Mill, NG16 4DF
- Off The Wall Creations (UK) Ltd - Unit 2B, Belfast, County Antrim, BT15 3HN
- Office & Reception Planters Ltd - Ashtree Farm, Newcastle upon Tyne, Northumberland, NE15 0HE
Companies 196 to 210 | Page 14 of 66