| UK Company Name | Partial Address |
| Oval (2041) Limited | 16 Old Bailey, London |
| Oval (2143) Limited | LIVERPOOL INNOVATION PARK, LIVERPOOL |
| Oval Insurance Broking Limited | 25 WALBROOK, LONDON |
| Oval Limited | 25 WALBROOK, LONDON |
| Oval Medical Technologies Limited | Cambridge |
| Oval Real Estate Limited | WIMBLEDON, LONDON |
| Ovalbridge Developments Ltd | BALLYMENA |
| Ovalbridge Limited | Ballymena |
| Ovara Limited | GOOLE, NORTH HUMBERSIDE |
| Ovarro Da Holdings Ltd | Eckington, Sheffield |
| Ovarro Da Ltd | Eckington, Sheffield |
| Ovation Limited | Chesterfield, Derbyshire |
| Ove Arup & Partners International Limited | London |
| Ove Arup & Partners Limited | London |
| Ove Arup Partnership Trust Corporation Limited | LONDON |
| Ovenfeast Foods Limited | ST DAVIDS COURT WINDMILL ROAD, CLEVEDON BRISTOL B21 64P |
| Ovenmill Limited | St. Leonards On Sea, E.Sussex |
| Oventrop Uk Limited | BASINGSTOKE, HAMPSHIRE |
| Over And Above Ltd | Eastcote |
| Overbury Plc | 14 - 17 Market Place, London |
| Overclean Limited | HONITON, DEVON |
| Overclockers Uk Limited | STOKE-ON-TRENT, STAFFORDSHIRE |
| Overfinch Finance Limited | ST JOHN'S WOOD, LONDON |
| Overfinch Limited | St John's Wood, London |
| Overflow Church | HOOLE, CHESHIRE |
| Overhall Contractors Limited | SCUNTHORPE, NORTH LINCOLNSHIRE |
| Overland Shoes Limited | LYME STREET, LONDON |
| Overlay Events Ltd | Kings Langley, Hertfordshire |
| Overlec Limited | WORSLEY, MANCHESTER |
| Overseas Air Travel Limited | SPEEDBIRD WAY, HARMONDSWORTH |
| Overseas Courier Service (London) Limited | COLNBROOK, BERKSHIRE |
| Overseas Trading Limited | Cross Green, Leeds |
| Overton Farm Developments Limited | EDINBURGH |
| Overture Limited | Witney, Oxfordshire |
| Overwood Limited | KINGS NORTON, BIRMINGHAM |
| Ovivo Uk Limited | Wolverhampton |
| Ovo Brand Ltd | TEMPLE BACK, REDCLIFFE |
| Ovo Energy Ltd | Temple Back, Redcliffe |
| Ovo Software Services Limited | COVENT GARDEN, LONDON |
| Ovvotech Innovations Ltd | NEWRY, COUNTY DOWN |