- Omos Ltd - 1- 3 Military Road Industrial Park, Naas, Co. Kildare, Ireland
- Omron Electronics Ltd - Opal Drive, Milton Keynes, Buckinghamshire, MK15 0DG
- Oms Engineering - Unit 14-15 M11 Business Link, Stansted, Essex, CM24 8GF
- Omya UK Ltd - Omya House, Stephensons Way , Derby, DE21 6LY
- On 2 Wheels Distribution - Phoenix Way, Swansea, West Glamorgan, SA4 9HN
- On Board Surface Mount Assembly Ltd - Trident House, Darwen, Lancashire, BB3 2PN
- On Group - On-Beauty House, Bath, Somerset, BA2 1NF
- On Line Design - Online House, Immingham, South Humberside, DN40 1AB
- On Site Support - Stephenson Way, Crawley, West Sussex, RH10 1TN
- On Tap Water Coolers Ltd - Furnace Lane, Northants, NN9 5NY
- On Tap Water Treatment Ltd - Bancombe Trading Estate , Somerton, Somerset, TA11 6SB
- On The Level - Units 7-9, Young's Industrial Estate, Leighton Buzzard, Bedfordshire, LU7 4QB
- On The Spot Signs - Clutton Hill Estate, Bristol, Somerset, BS39 5QQ
- Oncall Medical Supplies - 15 Victoria Road , Exmouth Devon, EX18 1DL
- Oncology Imaging Systems - 7-8 Carriers Way, Lewes, East Sussex, BN8 6AG
Companies 391 to 405 | Page 27 of 63