Manufacturers: O
648 manufacturers
| Manufacturer | Sector | Town | Year | Accounts type |
|---|---|---|---|---|
| 'O' CONNOR FENCING LIMITED | Fabricated metal products | Whitehaven | 1982 | Total exemption (full) |
| O & S DOORS LIMITED | Wood products | Dungannon | 1998 | Full accounts |
| O E S MEDICAL LIMITED | Other manufacturing | Witney | 1995 | Unaudited abridged |
| O KAY ENGINEERING SERVICES LIMITED | Machinery and equipment | Desborough | 1963 | Small company accounts |
| O'HARE STEEL LIMITED | Basic metals | Newry | 2010 | Total exemption (full) |
| O'NEIL GAS SERVICES LIMITED | Repair and installation of machinery | Ayr | 1994 | Total exemption (full) |
| O'NEILL MODERNMEDIA (OMM) LIMITED | Printing and recorded media | Maidenhead | 2009 | Small company accounts |
| O'NEILL SIGNS LIMITED | Other manufacturing | Runcorn | 2008 | Total exemption (full) |
| O'NEILLS IRISH INTERNATIONAL SPORTS COMPANY LIMITED | Clothing | Co Tyrone | 1974 | Full accounts |
| O-I GLASS LIMITED | Glass, ceramics, cement and stone | Essex | 1953 | Full accounts |
| O. T. (SMOKED SALMON) LIMITED | Food products | Enfield | 1985 | Total exemption (full) |
| O.COMITTI AND SON LIMITED | Computers, electronics and optics | Essex | 1897 | Total exemption (full) |
| O.D. ENGINEERING LTD | Motor vehicles and parts | Leicester | 2008 | Unaudited abridged |
| O.J. FABRICATIONS LIMITED | Fabricated metal products | Dorchester | 2009 | Total exemption (full) |
| O.L.D. ENGINEERING COMPANY LIMITED | Fabricated metal products | Leicester | 1971 | Medium company accounts |
| O.M.G PLUMBING & HEATING LIMITED | Repair and installation of machinery | Widnes | 1997 | Unaudited abridged |
| O.M.K. DESIGN LIMITED | Furniture | Shoreham-by-Sea | 1964 | Total exemption (full) |
| O.P. CHOCOLATE LIMITED | Food products | Merthyr Tydfil | 1990 | Full accounts |
| O.S.F. LIMITED | Basic metals | Station Road Four Ashes | 1988 | Total exemption (full) |
| O.T.M.SERVO MECHANISM LIMITED | Fabricated metal products | Surrey | 1961 | Audit-exempt subsidiary |
| O/K INTERNATIONAL (EUROPE) LIMITED | Machinery and equipment | Stanton, Bury St. Edmunds | 1982 | Total exemption (full) |
| OADBY PLASTICS LIMITED | Rubber and plastics | Leicester | 1998 | Full accounts |
| OAK & LIME LTD | Wood products | Harleston | 2006 | Total exemption (full) |
| OAK BREWING COMPANY LIMITED | Beverages | Heywood | 1990 | Total exemption (full) |
| OAK BY DESIGN LTD | Wood products | York | 2002 | Total exemption (full) |
| OAK DENTAL LABORATORIES LIMITED | Other manufacturing | Nottingham | 1999 | Unaudited abridged |
| OAK GATE JOINERY LIMITED | Wood products | Bedford | 2009 | Total exemption (full) |
| OAK GROVE CABINS LTD | Other manufacturing | Derry | 2005 | Medium company accounts |
| OAK HEATING PRODUCTS LTD | Fabricated metal products | Pyle | 2001 | Total exemption (full) |
| OAK PRODUCTS INTERNATIONAL LIMITED | Other manufacturing | Partridge Green | 2005 | Total exemption (full) |
| OAK SPECIALIST JOINERY LIMITED | Wood products | Liverpool | 2008 | Total exemption (full) |
| OAK TREE GARAGE (PAIGNTON) LTD | Repair and installation of machinery | Paignton | 2010 | Total exemption (full) |
| OAK TREE MOTOR HOMES LIMITED | Motor vehicles and parts | Nottingham | 2004 | Medium company accounts |
| OAKBAY SERVICES LIMITED | Other manufacturing | Liverpool | 2001 | Total exemption (full) |
| OAKBRAY LIMITED | Rubber and plastics | Stoke-on-Trent | 1975 | Total exemption (full) |
| OAKDALE (CONTRACTS) LIMITED | Glass, ceramics, cement and stone | Billingham | 1996 | Total exemption (full) |
| OAKDALE MANUFACTURING (UK) LIMITED | Fabricated metal products | Nottingham | 2007 | Total exemption (full) |
| OAKENASH GROUP LIMITED | Computers, electronics and optics | Glasgow | 1996 | Group accounts |
| OAKENHURST AIRCRAFT SERVICES LIMITED | Repair and installation of machinery | Rayleigh | 1989 | Total exemption (full) |
| OAKES MILLERS LIMITED | Food products | Nantwich | 1937 | Full accounts |
| OAKES TOOLS LIMITED | Machinery and equipment | Buckingham | 1985 | Total exemption (full) |
| OAKFIELD (FOODS) LIMITED | Food products | Borehamwood | 1987 | Full accounts |
| OAKFIELD CABINETS LTD | Furniture | Antrim | 2005 | Total exemption (full) |
| OAKHAM ENGINEERING LIMITED | Fabricated metal products | Corby | 2006 | Total exemption (full) |
| OAKHAM FABRICATIONS & ENGINEERS LIMITED | Repair and installation of machinery | Birmingham | 1996 | Unaudited abridged |
| OAKHAM SHEET METAL COMPANY LIMITED | Fabricated metal products | West Bromwich | 1983 | Small company accounts |
| OAKHINGE LIMITED | Machinery and equipment | Walsall | 1979 | Total exemption (full) |
| OAKHIRST FABRICATIONS LIMITED | Fabricated metal products | Road, Great Horwood | 2000 | Total exemption (full) |
| OAKHIRST LIMITED | Fabricated metal products | Road, Great Horwood | 1992 | Total exemption (full) |
| OAKLAND COACHBUILDERS LIMITED | Motor vehicles and parts | Malvern | 2005 | Total exemption (full) |
| OAKLANDS ENVIRONMENTAL LIMITED | Rubber and plastics | Birmingham | 2005 | Total exemption (full) |
| OAKLANDS PLASTICS LIMITED | Rubber and plastics | Birmingham | 1993 | Medium company accounts |
| OAKLEAF CARPENTRY & JOINERY LIMITED | Wood products | Chesterfield | 2008 | Total exemption (full) |
| OAKLEY BEDSTEADS LIMITED | Other manufacturing | Birmingham | 1933 | Unaudited abridged |
| OAKLEY CNC MACHINING LTD | Fabricated metal products | Burton on Trent | 2002 | Total exemption (full) |
| OAKLEY FRAMING LIMITED | Other manufacturing | Corby | 2008 | Total exemption (full) |
| OAKLEY GAS AND HEATING LIMITED | Repair and installation of machinery | Hampshire | 2004 | Total exemption (full) |
| OAKLEYSTONE NORTHERN LTD | Other manufacturing | Newcastle upon Tyne | 2008 | Total exemption (full) |
| OAKMAIN LIMITED | Repair and installation of machinery | Hengoed | 1993 | Unaudited abridged |
| OAKMASTERS LIMITED | Other manufacturing | West Sussex | 1999 | Total exemption (full) |
| OAKMERE TECHNICAL SERVICES LIMITED | Coke and refined petroleum | Chester | 1981 | Total exemption (full) |
| OAKMOUNT CONTROL SYSTEMS LIMITED | Machinery and equipment | Plymouth | 2003 | Total exemption (full) |
| OAKRANGE ENGINEERING LIMITED | Ships, aircraft, rail and other transport | Worksop | 1982 | Total exemption (full) |
| OAKRIDGE DIRECT LTD. | Furniture | Tredegar | 1996 | Small company accounts |
| OAKTREE ENGINEERING LIMITED | Other manufacturing | West Midlands | 2000 | Total exemption (full) |
| OAKTREE JOINERY & TIMBER SUPPLIES LIMITED | Wood products | Sandyford | 1991 | Total exemption (full) |
| OAKWOOD CONTRACTS LIMITED | Furniture | Doncaster | 1992 | Total exemption (full) |
| OAKWOOD DOOR DESIGNS LIMITED | Furniture | Toomebridge | 1999 | Full accounts |
| OAKWOOD FENCING SERVICES LIMITED | Wood products | Essex | 2003 | Total exemption (full) |
| OAKWOOD FIRE AND SAFETY SOLUTIONS LIMITED | Repair and installation of machinery | King’s Lynn | 2010 | Total exemption (full) |
| OAKWOOD INTERIORS LIMITED | Wood products | Oldham | 2005 | Total exemption (full) |
| OAKWOOD KITCHEN DESIGN CONSULTANTS LIMITED | Furniture | Huddersfield | 1983 | Small company accounts |
| OAKWRIGHTS BATH LTD | Wood products | Corsham | 2003 | Total exemption (full) |
| OASE (UK) LIMITED | Fabricated metal products | Eastleigh | 1993 | Medium company accounts |
| OASIS BIN-LOC LIMITED | Other manufacturing | St. Helens | 2010 | Unaudited abridged |
| OASIS UK CATERING LIMITED | Food products | London | 2005 | Total exemption (full) |
| OASTON ENGINEERING LIMITED | Fabricated metal products | Estate Nuneaton | 1995 | Unaudited abridged |
| OASYS TECHNOLOGIES LIMITED | Machinery and equipment | Sandy | 1998 | Total exemption (full) |
| OATENVALE LIMITED | Furniture | Ilkeston | 1981 | Total exemption (full) |
| OB DEVELOPMENTS LIMITED | Furniture | Witney | 2006 | Total exemption (full) |
| OBAN ALES LIMITED | Machinery and equipment | Kinlochleven | 2009 | Unaudited abridged |
| OBAN LIMITED | Fabricated metal products | Bodmin | 1998 | Total exemption (full) |
| OBAN SCALLOP GEAR LIMITED | Machinery and equipment | Forfar | 2008 | Total exemption (full) |
| OBARCS (HOLDINGS) LIMITED | Food products | — | 2003 | Small company accounts |
| OBERLIN FILTER LIMITED | Machinery and equipment | Newton Aycliffe | 1999 | Audited abridged |
| OBERON PERFORMANCE LIMITED | Machinery and equipment | Havant | 2005 | Total exemption (full) |
| OBSERVER NEWSPAPERS (N.I.) LIMITED | Printing and recorded media | Co Tyrone | 1961 | Unaudited abridged |
| OCEAN COLOUR PRINT LIMITED | Paper and paperboard | Bournemouth | 2009 | Total exemption (full) |
| OCEAN ELECTRIC LIMITED | Repair and installation of machinery | Weymouth | 2009 | Total exemption (full) |
| OCEAN ENGINEERING SOLUTIONS LTD | Repair and installation of machinery | Blackburn | 2008 | Total exemption (full) |
| OCEAN FISH (RETAIL) LIMITED | Food products | St. Austell | 1986 | Full accounts |
| OCEAN KINETICS LIMITED | Fabricated metal products | Shetland | 1997 | Medium company accounts |
| OCEAN SAFETY LIMITED | Ships, aircraft, rail and other transport | Southampton | 1993 | Full accounts |
| OCEAN SCIENTIFIC INTERNATIONAL LIMITED | Other manufacturing | Penner Road Havant | 1989 | Small company accounts |
| OCEAN SIGNAL LIMITED | Computers, electronics and optics | Margate | 2008 | Full accounts |
| OCEANCARE COSMETICS LIMITED | Other manufacturing | Cardiff | 1998 | Total exemption (full) |
| OCEANDELL LIMITED | Paper and paperboard | London | 2004 | Total exemption (full) |
| OCEANIC CREATIONS (LONDON) LTD. | Clothing | — | 2003 | Unaudited abridged |
| OCEANIC JEWELLERS LIMITED | Other manufacturing | London | 1986 | Total exemption (full) |
| OCEANIC SEAFOODS LIMITED | Food products | Lancaster | 2009 | Full accounts |
| OCEANJOULE LIMITED | Repair and installation of machinery | Scunthorpe | 2010 | Total exemption (full) |
| OCEANS OF NOTIONS LIMITED | Textiles | Nottingham | 1939 | Total exemption (full) |
| OCEANTEC MARINE LIMITED | Fabricated metal products | Newton Aycliffe | 2004 | Total exemption (full) |
| OCEANTOOLS LIMITED | Electrical equipment | Aberdeen | 1997 | Total exemption (full) |
| OCEE DESIGN LIMITED | Furniture | Northampton | 1990 | Full accounts |
| OCHIL TIMBER PRODUCTS LIMITED | Wood products | — | 1973 | Total exemption (full) |
| OCHRE FRAMING LIMITED | Other manufacturing | East Sussex | 2003 | Total exemption (full) |
| OCKENDEN & HEMMING LIMITED | Fabricated metal products | Wimborne | 2002 | Total exemption (full) |
| OCKRAM LIMITED | Other manufacturing | Kingston upon Thames | 2005 | Unaudited abridged |
| OCTAGON SPECIALIST ENGINEERING LIMITED | Other manufacturing | Glenrothes | 2002 | Unaudited abridged |
| OCTAPHARMA LIMITED | Pharmaceuticals | Manchester | 1989 | Full accounts |
| OCTAVIUS HUNT LIMITED | Chemicals | Bristol | 1998 | Total exemption (full) |
| OCTAVO DIRECT IMAGE LIMITED | Printing and recorded media | Yeovil | 2000 | Total exemption (full) |
| OCTOBER TEXTILES LIMITED | Textiles | Nottingham | 2005 | Total exemption (full) |
| OCU HORNBILL LIMITED | Other manufacturing | Stockport | 1989 | Full accounts |
| OCU NORTHAVON GROUP LIMITED | Repair and installation of machinery | Stockport | 1990 | Full accounts |
| ODD EXHIBITIONS LIMITED | Other manufacturing | Ilkeston | 2009 | Total exemption (full) |
| ODDY HYDRAULICS LIMITED | Machinery and equipment | Leeds | 1985 | Total exemption (full) |
| ODEGON TECHNOLOGIES LIMITED | Textiles | Stourbridge | 2005 | Total exemption (full) |
| ODEMA LIMITED | Repair and installation of machinery | Altrincham | 2005 | Small company accounts |
| ODL EUROPE LIMITED | Rubber and plastics | Bootle | 2004 | Full accounts |
| ODLINGS MCR LIMITED | Machinery and equipment | Havant | 1966 | Audit-exempt subsidiary |
| ODYSSEY (G.B) LIMITED | Other manufacturing | Rochdale | 2008 | Total exemption (full) |
| OE ELECTRICS LIMITED | Electrical equipment | Wakefield | 1993 | Group accounts |
| OEA LABORATORIES LIMITED | Chemicals | Exeter | 2006 | Total exemption (full) |
| OEMA CHEM LIMITED | Chemicals | Southampton | 2010 | Total exemption (full) |
| OEMETA (UK) LIMITED | Chemicals | Banbury | 1997 | Small company accounts |
| OERLIKON BALZERS COATING UK LIMITED | Fabricated metal products | Milton Keynes | 1960 | Full accounts |
| OERLIKON NEOMET LIMITED | Fabricated metal products | Stockport | 1985 | Full accounts |
| OFF SITE SOLUTIONS (R T) LIMITED | Other manufacturing | Highbridge | 2004 | Group accounts |
| OFFAPLAN LIMITED | Repair and installation of machinery | Northants | 1981 | Total exemption (full) |
| OFFICE & RECEPTION PLANTERS LIMITED | Other manufacturing | Northumberland | 2006 | Total exemption (full) |
| OFFICE BASE LIMITED | Printing and recorded media | Thames Ditton | 1988 | Unaudited abridged |
| OFFICE CHAIR RENOVATION LIMITED | Furniture | Manchester | 2001 | Total exemption (full) |
| OFFICE PROBLEMS SOLVED (SEATING) LIMITED | Furniture | Haverhill | 2001 | Unaudited abridged |
| OFFICETWELVE LIMITED | Other manufacturing | Leicester | 2007 | Total exemption (full) |
| OFFICEWORX LTD | Printing and recorded media | Cheltenham | 1997 | Total exemption (full) |
| OFFITEC LIMITED | Paper and paperboard | Morden | 1991 | Unaudited abridged |
| OFFSET PRINT & PACKAGING LIMITED | Printing and recorded media | Aylesford | 1984 | Full accounts |
| OFICINA INGLESA LIMITED | Furniture | London | 2008 | Total exemption (full) |
| OFP TIMBER FRAMED HOMES LTD | Wood products | Kings Hill | 2005 | Full accounts |
| OGBORN BATTERY CAPACITY ASSURANCE TESTING LIMITED | Repair and installation of machinery | Dukinfield | 1989 | Total exemption (full) |
| OGDEN FIBRES LIMITED | Textiles | Keighley | 1921 | Total exemption (full) |
| OGLE MODELS AND PROTOTYPES LIMITED | Other manufacturing | Letchworth | 1978 | Total exemption (full) |
| OHMEGA LIMITED | Repair and installation of machinery | Portchester | 1979 | Total exemption (full) |
| OIL & GAS MANUFACTURING LIMITED | Machinery and equipment | Ely | 2005 | Unaudited abridged |
| OIL & GAS SYSTEMS LIMITED | Computers, electronics and optics | Ely | 1987 | Medium company accounts |
| OIL - DRI (U.K.) LIMITED | Glass, ceramics, cement and stone | Cambridgeshire | 1975 | Small company accounts |
| OIL COOLERS AND COMPRESSORS LIMITED | Fabricated metal products | Rugeley | 2006 | Total exemption (full) |
| OIL INVENTIONS LIMITED | Chemicals | Bloxwich Walsall | 1961 | Total exemption (full) |
| OIL SALVAGE LIMITED | Coke and refined petroleum | Liverpool | 1984 | Medium company accounts |
| OIL SLICK DISPERSANTS LIMITED | Chemicals | York | 1997 | Unaudited abridged |
| OIL TECHNICS LIMITED | Other manufacturing | Liverpool | 1987 | Full accounts |
| OILENCO LIMITED | Fabricated metal products | Aberdeen | 2008 | Total exemption (full) |
| OILGEAR EUROPEAN HOLDINGS LIMITED | Machinery and equipment | Leeds | 2007 | Full accounts |
| OILGEAR TOWLER LIMITED | Machinery and equipment | Leeds | 1956 | Small company accounts |
| OILQUIP LIMITED | Fabricated metal products | South Shields | 2007 | Total exemption (full) |
| OIP LIMITED | Other manufacturing | Dewsbury | 1994 | Total exemption (full) |
| OK INTERNATIONAL LIMITED | Electrical equipment | Eastleigh | 1977 | Full accounts |
| OKAN DESIGNS LIMITED | Clothing | Barking | 1997 | Total exemption (full) |
| OKARNO LIMITED | Glass, ceramics, cement and stone | Leicestershire | 2001 | Full accounts |
| OKEL LTD | Repair and installation of machinery | Warrington | 2010 | Unaudited abridged |
| OKW ENCLOSURES LIMITED | Fabricated metal products | Fareham | 1987 | Small company accounts |
| OLAM FOOD INGREDIENTS UK LIMITED | Food products | London | 1994 | Full accounts |
| OLANCHA GROUP LIMITED | Computers, electronics and optics | Reading | 2000 | Small company accounts |
| OLD ELDON JEWELLERS LIMITED | Other manufacturing | — | 2003 | Total exemption (full) |
| OLD FORGE FURNITURE LIMITED | Furniture | Near Hull | 2005 | Total exemption (full) |
| OLD HK LIMITED | Wood products | Gainsborough | 1999 | Small company accounts |
| OLD INNSERVE LIMITED | Repair and installation of machinery | Tadcaster | 2003 | Full accounts |
| OLD MILL FURNITURE (YORKSHIRE) LTD | Other manufacturing | Thirsk | 2003 | Total exemption (full) |
| OLD WARDEN LIMITED | Repair and installation of machinery | Biggleswade | 2007 | Small company accounts |
| OLDACRES & CO. LIMITED | Printing and recorded media | — | 1927 | Total exemption (full) |
| OLDBURY ENGINEERING CO.,LIMITED | Machinery and equipment | Sudbury | 1946 | Small company accounts |
| OLDBURY UK LIMITED | Machinery and equipment | Solihull | 1982 | Total exemption (full) |
| OLDE ENGLANDE REPRODUCTIONS LIMITED | Other manufacturing | Longton Stoke on Trent | 2001 | Total exemption (full) |
| OLDGATE TEXTILES LIMITED | Textiles | Harrogate | 1997 | Total exemption (full) |
| OLDHAM ELECTROPLATING COMPANY LIMITED | Fabricated metal products | Oldham | 1978 | Total exemption (full) |
| OLDHAM ENGINEERING LIMITED | Machinery and equipment | Sheffield | 1993 | Medium company accounts |
| OLDHAM SEALS LIMITED | Fabricated metal products | Altrincham | 1964 | Full accounts |
| OLDRIDGE WINDOWS LIMITED | Glass, ceramics, cement and stone | Harrogate | 2005 | Total exemption (full) |
| OLDROYD MAINTENANCE SERVICES LTD | Repair and installation of machinery | Ossett | 2010 | Total exemption (full) |
| OLDSGREEN ASSOCIATES LIMITED | Food products | Rochester | 2007 | Total exemption (full) |
| OLEMA ENGINEERING LIMITED | Machinery and equipment | Cranleigh | 2005 | Total exemption (full) |
| OLENOL LIMITED | Chemicals | Congleton | 1989 | Total exemption (full) |
| OLEON LTD. | Food products | Northallerton | 1980 | Full accounts |
| OLEONIX LIMITED | Chemicals | Waterlooville | 1980 | Total exemption (full) |
| OLGELIN LIMITED | Chemicals | Coventry | 1977 | Total exemption (full) |
| OLICANA PRODUCTS LIMITED | Fabricated metal products | Ilkley | 1967 | Total exemption (full) |
| OLIVE AND MOSS LIMITED | Clothing | London | 2009 | Unaudited abridged |
| OLIVER CRISPIN ROBOTICS LIMITED | Machinery and equipment | Altrincham | 1997 | Full accounts |
| OLIVER GOLDSMITH SUNGLASSES LIMITED | Clothing | London | 2003 | Total exemption (full) |
| OLIVER IGD LIMITED | Computers, electronics and optics | Stockport | 1972 | Small company accounts |
| OLIVER JAMES FURNITURE LIMITED | Furniture | Edenbridge | 2006 | Total exemption (full) |
| OLIVER PRICE LIMITED | Other manufacturing | Basildon | 2003 | Total exemption (full) |
| OLIVER TWINSAFE VALVES LIMITED | Machinery and equipment | Knutsford | 2000 | Full accounts |
| OLIVER VALVES LIMITED | Machinery and equipment | Cheshire | 1979 | Full accounts |
| OLIVER VALVETEK LIMITED | Machinery and equipment | Cheshire | 1994 | Full accounts |
| OLIVERS (CREDITON) LIMITED | Food products | Crediton | 2002 | Total exemption (full) |
| OLIVERS BOATYARD LIMITED | Ships, aircraft, rail and other transport | Brentford | 2005 | Total exemption (full) |
| OLIVES ET AL LIMITED | Food products | Sturminster Newton | 1999 | Total exemption (full) |
| OLLECO | Chemicals | Northampton | 2006 | Full accounts |
| OLMEC - UK LIMITED | Electrical equipment | Barton upon Humber | 2006 | Small company accounts |
| OLMEC ADVANCED MATERIALS LIMITED | Computers, electronics and optics | Sheffield | 1990 | Total exemption (full) |
| OLNEY KITCHENS LIMITED | Furniture | Milton Keynes | 2010 | Total exemption (full) |
| OLNEY PRECISION LIMITED | Fabricated metal products | Bucks. | 1975 | Total exemption (full) |
| OLRO PRINT FINISHERS LIMITED | Printing and recorded media | Romford | 2006 | Total exemption (full) |
| OLSEN SUBSEA CONTROLS LTD. | Machinery and equipment | Warrington | 2010 | Total exemption (full) |
| OLSON ELECTRONICS LTD | Electrical equipment | Middlesex | 1961 | Small company accounts |
| OLTON BEDROOMS LIMITED | Wood products | Plymouth | 2007 | Total exemption (full) |
| OLYMPIA FABRICATIONS LIMITED | Other manufacturing | Tipton | 2004 | Unaudited abridged |
| OLYMPIA TRIUMPH MANUFACTURING LIMITED | Other manufacturing | Wareham | 1990 | Total exemption (full) |
| OLYMPIAD SIGNS LIMITED | Other manufacturing | Dartford | 1966 | Total exemption (full) |
| OLYMPIAN SHEDS LIMITED | Wood products | Sandbach | 1984 | Total exemption (full) |
| OLYMPIC COMPACTOR RENTALS (UK) LIMITED | Repair and installation of machinery | Sheffield | 1983 | Total exemption (full) |
| OLYMPIC INSTALLATIONS LIMITED | Glass, ceramics, cement and stone | Beckenham | 1992 | Medium company accounts |
| OLYMPIC LIFTS LIMITED | Machinery and equipment | Lissue Road | 1985 | Small company accounts |
| OLYMPIC OILS LIMITED | Food products | Whiston | 1985 | Full accounts |
| OLYMPIC UPVC PRODUCTS LIMITED | Rubber and plastics | Llanelli | 1990 | Total exemption (full) |
| OLYMPIC WELDING LIMITED | Fabricated metal products | Colton | 1971 | Total exemption (full) |
| OLYMPUS AUTOMATION LIMITED | Computers, electronics and optics | Peterborough | 1997 | Small company accounts |
| OLYMPUS ENGINEERING LIMITED | Fabricated metal products | Altrincham | 2000 | Full accounts |
| OLYMPUS TECHNOLOGIES LIMITED | Repair and installation of machinery | Huddersfield | 1987 | Total exemption (full) |
| OMAGH ALUMINIUM SYSTEMS LTD | Fabricated metal products | Omagh | 2003 | Small company accounts |
| OMAKASE MUSIC LIMITED | Printing and recorded media | London | 2010 | Total exemption (full) |
| OMAR PARK HOMES LIMITED | Other manufacturing | Brandon | 2009 | Full accounts |
| OMATICS LIMITED | Computers, electronics and optics | Croydon | 1991 | Unaudited abridged |
| OMC INTERNATIONAL (EUROPE) LIMITED | Other manufacturing | London | 2008 | Small company accounts |
| OMC JOINERY LIMITED | Wood products | Nottingham | 2001 | Total exemption (full) |
| OMCO UK LIMITED | Fabricated metal products | Castleford | 1995 | Small company accounts |
| OMEG LIMITED | Computers, electronics and optics | East Grinstead | 1958 | Total exemption (full) |
| OMEGA CITYLIFTS SERVICES LIMITED | Repair and installation of machinery | Stevenage | 1996 | Total exemption (full) |
| OMEGA CONTROL SOLUTIONS LIMITED | Repair and installation of machinery | Littlehampton | 2006 | Total exemption (full) |
| OMEGA DESIGN SOLUTIONS UK LTD | Machinery and equipment | Dewsbury | 2002 | Total exemption (full) |
| OMEGA DIAGNOSTICS LIMITED | Chemicals | Edinburgh | 1987 | Full accounts |
| OMEGA EFA LIMITED | Beverages | Carnforth | 2001 | Total exemption (full) |
| OMEGA FLEX LIMITED | Basic metals | Banbury | 2000 | Small company accounts |
| OMEGA INGREDIENTS LIMITED | Food products | Great Blakenham | 2001 | Small company accounts |
| OMEGA LASER SYSTEMS LIMITED | Electrical equipment | Little Maplestead | 1991 | Total exemption (full) |
| OMEGA NORTH EAST LIMITED | Rubber and plastics | Gateshead | 1996 | Full accounts |
| OMEGA PHARMA LIMITED | Pharmaceuticals | Braunton | 1967 | Full accounts |
| OMEGA PISTONS LIMITED | Other manufacturing | West Midlands | 1973 | Total exemption (full) |
| OMEGA PLC | Furniture | Doncaster | 1992 | Full accounts |
| OMEGA PROTEINS LIMITED | Other manufacturing | Halifax | 1999 | Full accounts |
| OMEGA SIGNS LIMITED | Other manufacturing | Leeds | 1992 | Medium company accounts |
| OMEGA SINTO FOUNDRY MACHINERY LIMITED | Machinery and equipment | Peterborough | 1996 | Group accounts |
| OMEGA TRADE FRAMES LIMITED | Rubber and plastics | Torquay | 1997 | Total exemption (full) |
| OMERSA AND COMPANY LIMITED | Other manufacturing | Louth | 2002 | Unaudited abridged |
| OMEX AGRICULTURAL HOLDINGS LTD. | Chemicals | Huntingdon | 1973 | Group accounts |
| OMEX AGRICULTURE LIMITED | Chemicals | Lincs | 1976 | Full accounts |
| OMEX AGRIFLUIDS LIMITED | Chemicals | Kings Lynn | 1991 | Medium company accounts |
| OMEX ENVIRONMENTAL LIMITED | Chemicals | Spalding | 1989 | Medium company accounts |
| OMEX NITROGEN LIMITED | Chemicals | Lincoln | 1991 | Small company accounts |
| OMG JEWELLERY FOR YOUR KITCHEN LIMITED | Other manufacturing | Manchester | 2010 | Total exemption (small) |
| OMG LIFE LIMITED | Computers, electronics and optics | Yarnton | 2008 | Audit-exempt subsidiary |
| OMICRON ENGINEERING LIMITED | Motor vehicles and parts | Norwich | 1984 | Total exemption (full) |
| OMLET LIMITED | Other manufacturing | Banbury | 2004 | Full accounts |
| OMM LTD. | Textiles | Lancaster | 1997 | Total exemption (full) |
| OMNI COLOUR PRESENTATIONS LIMITED | Printing and recorded media | London | 1993 | Unaudited abridged |
| OMNI-TECH ELECTRONICS LIMITED | Electrical equipment | Sheffield | 2008 | Unaudited abridged |
| OMNIA HV AND RAIL LTD | Machinery and equipment | Uttoxeter | 1999 | Total exemption (full) |
| OMNIA TECHNICAL PLASTICS LTD | Other manufacturing | Milton Keynes | 2010 | Total exemption (full) |
| OMNICOM SYSTEMS (UK) LIMITED | Computers, electronics and optics | Prescot | 1997 | Total exemption (full) |
| OMNIS MECHANICAL LIMITED | Machinery and equipment | Shaftesbury | 1999 | Total exemption (full) |
| OMNISONIC INTERNATIONAL LIMITED | Computers, electronics and optics | Ampthill | 2007 | Total exemption (full) |
| OMNITOOL LIMITED | Fabricated metal products | Irvine | 2005 | Total exemption (full) |
| OMNITRACK NORTH AMERICA LIMITED | Machinery and equipment | Stroud | 2009 | Total exemption (full) |
| OMNITUB LTD | Rubber and plastics | Lympsham | 2004 | Unaudited abridged |
| OMORI MACHINERY UK LTD | Repair and installation of machinery | Wirral | 1945 | Unaudited abridged |
| OMYA UK LIMITED | Chemicals | North Ferriby | 1947 | Full accounts |
| ON A ROLL SANDWICH COMPANY LIMITED | Food products | Middlesbrough | 2006 | Full accounts |
| ON DEMAND PRINT & DESIGN LIMITED | Printing and recorded media | Gloucester | 2010 | Total exemption (full) |
| ON DEMAND PRINT SERVICES LIMITED | Printing and recorded media | Northampton | 2003 | Total exemption (full) |
| ON LINE DESIGN & ENGINEERING LIMITED | Fabricated metal products | Immingham | 1982 | Full accounts |
| ON POINT BREW COMPANY LIMITED | Beverages | Chepstow | 2009 | Total exemption (full) |
| ON SITE SERVICES (GRAVESEND) LIMITED | Fabricated metal products | Gravesend | 1986 | Total exemption (full) |
| ON SITE TRUCK REPAIRS LIMITED | Repair and installation of machinery | Cheshire | 1993 | Total exemption (full) |
| ON SITE TYRE SERVICES (SCOTLAND) LIMITED | Repair and installation of machinery | Glasgow | 1994 | Total exemption (full) |
| ON THE LEVEL (WET ROOMS) LIMITED | Wood products | Leighton Buzzard | 2007 | Total exemption (full) |
| ON TIME JOINERY HOLDINGS LIMITED | Wood products | London | 2010 | Total exemption (full) |
| ON TIME JOINERY LIMITED | Wood products | — | 1997 | Total exemption (full) |
| ON-LINE REFRIGERATION & AIR CONDITIONING LIMITED | Repair and installation of machinery | Ruislip | 1996 | Total exemption (full) |
| ON-WOOD PRODUCTS LIMITED | Wood products | Maidstone | 2009 | Small company accounts |
| ON365 LIMITED | Repair and installation of machinery | Loughborough | 1990 | Total exemption (full) |
| ONANDON LTD | Other manufacturing | — | 2001 | Total exemption (full) |
| ONBOARD CORRUGATED LIMITED | Paper and paperboard | Wolverhampton | 2010 | Medium company accounts |
| ONCE UPON A TIME ACTIVATION LIMITED | Printing and recorded media | Nottingham | 1999 | Small company accounts |
| ONCE UPON A TIME MUSIC LIMITED | Printing and recorded media | London | 1997 | Small company accounts |
| ONDRIVES LIMITED | Fabricated metal products | Chesterfield | 1995 | Full accounts |
| ONE 4 ALL TRADES LTD | Repair and installation of machinery | Sutton Coldfield | 2003 | Total exemption (full) |
| ONE CALL ENGINEERING LIMITED | Repair and installation of machinery | Seaham | 2007 | Total exemption (full) |
| ONE COFFEE LTD | Repair and installation of machinery | Wootton St Lawrence | 2005 | Total exemption (full) |
| ONE DIGITAL LIMITED | Computers, electronics and optics | Northampton | 2003 | Total exemption (full) |
| ONE FOR FUN LIMITED | Other manufacturing | Glasgow | 1977 | Full accounts |
| ONE HOLDING NORTH LIMITED | Furniture | Batley | 2008 | Total exemption (full) |
| ONE HOUSE GROUP LIMITED | Chemicals | Cumbria | 2007 | Total exemption (full) |
| ONE MEDIA IP LIMITED | Printing and recorded media | Iver Heath | 2005 | Small company accounts |
| ONE OFFS LIMITED | Basic metals | Lancashire | 2001 | Unaudited abridged |
| ONE STEP JOINERY LIMITED | Wood products | Swindon | 1998 | Total exemption (full) |
| ONE STOP FLUID POWER LTD | Other manufacturing | London | 2004 | Audit-exempt subsidiary |
| ONE STOP JOINERY LIMITED | Wood products | Crawley | 2004 | Total exemption (full) |
| ONE+ALL LIMITED | Clothing | Stockport | 1972 | Full accounts |
| ONE-4-POWER LIMITED | Electrical equipment | Wokingham | 2002 | Total exemption (full) |
| ONE-CALL FURNITURE LIMITED | Furniture | London | 2003 | Unaudited abridged |
| ONELIFT LIMITED | Repair and installation of machinery | Sidcup | 2008 | Total exemption (full) |
| ONESITE (LASER) LIMITED | Fabricated metal products | Doncaster | 2008 | Total exemption (full) |
| ONESITE SOLUTIONS LIMITED | Fabricated metal products | Mansfield | 2003 | Total exemption (full) |
| ONESUBSEA ANGOLA LIMITED | Machinery and equipment | Leeds | 1936 | Audit-exempt subsidiary |
| ONESUBSEA UK LIMITED | Machinery and equipment | London | 1945 | Audit-exempt subsidiary |
| ONEX LTD | Clothing | Hillsborough | 2004 | Total exemption (full) |
| ONFAB LIMITED | Rubber and plastics | Middlewich | 2009 | Small company accounts |
| ONFORM (DIES) LIMITED | Fabricated metal products | Basildon | 1985 | Total exemption (full) |
| ONLINE COATING LIMITED | Other manufacturing | Bristol | 1990 | Total exemption (full) |
| ONLINE ELECTRONICS LIMITED | Other manufacturing | Aberdeen | 1996 | Small company accounts |
| ONLINE FURNACE SERVICES LIMITED | Other manufacturing | Renfrew | 2000 | Total exemption (full) |
| ONLINE KITCHEN STORE LTD | Furniture | St. Albans | 1997 | Total exemption (full) |
| ONLINE REPROGRAPHICS (LONDON) LIMITED | Printing and recorded media | London | 2004 | Total exemption (full) |
| ONO PHARMA UK LTD. | Pharmaceuticals | London | 1998 | Full accounts |
| ONSITE SERVICES DW LIMITED | Machinery and equipment | Eastleigh | 2010 | Total exemption (full) |
| ONSTYLE LIFTING & ENGINEERING LIMITED | Repair and installation of machinery | Nuneaton | 2010 | Unaudited abridged |
| ONTIC ENGINEERING & MANUFACTURING UK LIMITED | Ships, aircraft, rail and other transport | Cheltenham | 2008 | Full accounts |
| ONVU TECHNOLOGIES LIMITED | Other manufacturing | London | 2007 | Total exemption (full) |
| ONWARD DISPLAY LIMITED | Printing and recorded media | London | 2003 | Unaudited abridged |
| ONYX LIFT SERVICES LIMITED | Repair and installation of machinery | Wimborne | 2008 | Total exemption (full) |
| ONYX SCIENTIFIC LIMITED | Pharmaceuticals | Sunderland | 2000 | Medium company accounts |
| OPAL ELEVATORS LIMITED | Fabricated metal products | Keighley | 2004 | Total exemption (full) |
| OPAL ENVELOPES LIMITED | Paper and paperboard | Wolverhampton | 1991 | Total exemption (full) |
| OPAL FABRICATION LIMITED | Fabricated metal products | Maldon | 2004 | Total exemption (full) |
| OPAL FOOD PROCESSING SYSTEMS LIMITED | Machinery and equipment | Cambridgeshire | 1996 | Small company accounts |
| OPEN DATE EQUIPMENT LIMITED | Machinery and equipment | Mitcham | 1974 | Total exemption (full) |
| OPEN PARTNERSHIP SOLUTIONS LIMITED | Machinery and equipment | Bristol | 2004 | Total exemption (full) |
| OPEN SYSTEM SOLUTIONS LIMITED | Computers, electronics and optics | Southampton | 2006 | Total exemption (full) |
| OPEN TECHNOLOGIES LIMITED | Computers, electronics and optics | Southampton | 1997 | Total exemption (full) |
| OPENDOOR PRINT LIMITED | Rubber and plastics | Basingstoke | 2007 | Total exemption (full) |
| OPENHOUSE PRODUCTS LIMITED | Leather goods and footwear | Birkenhead | 1992 | Total exemption (full) |
| OPG LTD. | Printing and recorded media | Lanarkshire | 1997 | Total exemption (full) |
| OPHTHALMEDICA LIMITED | Other manufacturing | Winchester | 1983 | Total exemption (full) |
| OPM (LABELS & PACKAGING) GROUP LIMITED | Printing and recorded media | Leeds | 1972 | Group accounts |
| OPM FURNITURE LIMITED | Furniture | London | 2003 | Total exemption (full) |
| OPMOBILITY EXTERIOR UK LIMITED | Motor vehicles and parts | Swadlincote | 1996 | Full accounts |
| OPPERMAN MASTERGEAR LIMITED | Machinery and equipment | London | 1991 | Small company accounts |
| OPRIMA LIMITED | Computers, electronics and optics | Kidlington | 2002 | Total exemption (full) |
| OPRO INTERNATIONAL LIMITED | Other manufacturing | London | 2000 | Total exemption (full) |
| OPSEC SECURITY GROUP LIMITED | Other manufacturing | Tyne and Wear | 1982 | Full accounts |
| OPSEC SECURITY LIMITED | Other manufacturing | Tyne and Wear | 1986 | Full accounts |
| OPSODIS LIMITED | Computers, electronics and optics | Southampton | 2004 | Total exemption (full) |
| OPTAGLIO LIMITED | Printing and recorded media | London | 1997 | Total exemption (full) |
| OPTARE PLC | Motor vehicles and parts | Rotherham | 2008 | Group accounts |
| OPTARE UK LIMITED | Motor vehicles and parts | Rotherham | 2007 | Small company accounts |
| OPTEK LIMITED | Machinery and equipment | Oxford | 2000 | Audit-exempt subsidiary |
| OPTICAL FILTERS LIMITED | Other manufacturing | Thame | 1988 | Total exemption (full) |
| OPTICAL INSTRUMENTATION LIMITED | Computers, electronics and optics | Upper Hartfield | 2010 | Total exemption (full) |
| OPTICAL LENS SOLUTIONS LIMITED | Other manufacturing | Walsall | 2006 | Total exemption (full) |
| OPTICAL SURFACES LIMITED | Glass, ceramics, cement and stone | Surrey | 1991 | Total exemption (full) |
| OPTICAL TOOLS FOR INDUSTRY LIMITED | Other manufacturing | Holywell | 2005 | Total exemption (full) |
| OPTICHROME LIMITED | Printing and recorded media | Surrey | 1963 | Total exemption (full) |
| OPTICO LIMITED | Other manufacturing | Southminster | 2004 | Total exemption (full) |
| OPTIGENE LIMITED | Computers, electronics and optics | West Sussex | 2008 | Total exemption (full) |
| OPTIKINETICS LIMITED | Electrical equipment | Bedfordshire | 1970 | Total exemption (full) |
| OPTIMA INTERNATIONAL LIMITED | Machinery and equipment | Doncaster | 1961 | Total exemption (full) |
| OPTIMA PRINT LIMITED | Printing and recorded media | Oldbury | 2002 | Total exemption (full) |
| OPTIMA PRODUCTS LIMITED | Fabricated metal products | High Wycombe | 1971 | Full accounts |
| OPTIMA SECURITY SYSTEMS LIMITED | Electrical equipment | Sittingbourne | 1988 | Total exemption (full) |
| OPTIMA STAINLESS LIMITED | Fabricated metal products | King’s Lynn | 2009 | Full accounts |
| OPTIMAL INDUSTRIAL AUTOMATION LIMITED | Computers, electronics and optics | Yate | 1990 | Total exemption (full) |
| OPTIMAL INDUSTRIAL TECHNOLOGIES LIMITED | Computers, electronics and optics | Yate | 2004 | Total exemption (full) |
| OPTIMAL TECHNOLOGIES LIMITED | Machinery and equipment | Letchworth Garden City | 1997 | Small company accounts |
| OPTIMAX IMAGING, INSPECTION AND MEASUREMENT LTD | Computers, electronics and optics | Market Harborough | 2005 | Total exemption (full) |
| OPTIMAX LIMITED | Other manufacturing | Road Cannock | 1975 | Unaudited abridged |
| OPTIMEASURE LIMITED | Computers, electronics and optics | Wootton | 2003 | Total exemption (full) |
| OPTIMISE HEAT & STEAM LIMITED | Repair and installation of machinery | Bury St Edmunds | 2010 | Total exemption (full) |
| OPTIMOLD LIMITED | Rubber and plastics | Warrington | 2003 | Small company accounts |
| OPTIMUM BALANCE PRODUCTS LIMITED | Fabricated metal products | Huntingdon | 2007 | Unaudited abridged |
| OPTIMUM BRASSES LIMITED | Basic metals | Bampton | 2009 | Total exemption (full) |
| OPTIMUM COATINGS LIMITED | Other manufacturing | Morecambe | 2001 | Total exemption (full) |
| OPTIMUM DRIVE LIMITED | Repair and installation of machinery | Croydon | 2008 | Total exemption (full) |
| OPTIMUM INTERNATIONAL 2000 LIMITED | Furniture | Malton | 1996 | Total exemption (full) |
| OPTIMUM MEDICAL SOLUTIONS LIMITED | Other manufacturing | Leeds | 2008 | Full accounts |
| OPTIMUM PACKAGING LIMITED | Paper and paperboard | Wisbech | 1998 | Total exemption (full) |
| OPTIMUM PRECISION ENGINEERING LIMITED | Fabricated metal products | Ely | 1987 | Total exemption (full) |
| OPTIMUM SAFETY SYSTEMS LIMITED | Computers, electronics and optics | Bradford | 1974 | Total exemption (full) |
| OPTIMUM SOLUTIONS LTD | Other manufacturing | Sutton Coldfield | 2007 | Total exemption (full) |
| OPTIMUS GROUP LIMITED | Other manufacturing | Surrey | 2007 | Total exemption (full) |
| OPTION HYGIENE LIMITED | Chemicals | Nelson | 1997 | Total exemption (full) |
| OPTIONS (ROTHWELL) LIMITED | Repair and installation of machinery | Leeds | 1990 | Unaudited abridged |
| OPTIPAK LIMITED | Other manufacturing | Hemel Hempstead | 1984 | Total exemption (full) |
| OPTISENSE LIMITED | Computers, electronics and optics | Horsham | 1998 | Total exemption (full) |
| OPTIVITE INTERNATIONAL LIMITED | Other manufacturing | Worksop | 1989 | Audit-exempt subsidiary |
| OPTIX COMPANY UK LIMITED | Computers, electronics and optics | Northampton | 2002 | Total exemption (full) |
| OPTOLINK LIMITED | Computers, electronics and optics | Peterlee | 1992 | Total exemption (full) |
| OPTOPLAST MANUFACTURING COMPANY LIMITED(THE) | Other manufacturing | Merseyside | 1946 | Unaudited abridged |
| OPTOS PUBLIC LIMITED COMPANY | Computers, electronics and optics | Dunfermline | 1992 | Full accounts |
| OPTRYS LIMITED | Furniture | — | 1995 | Total exemption (full) |
| OPUS INSTRUMENTS LTD | Computers, electronics and optics | Cambridge | 2007 | Unaudited abridged |
| OPUS MAGNUM LIMITED | Furniture | London | 1995 | Total exemption (full) |
| OPUS PLASTICS LIMITED | Rubber and plastics | Exeter | 2009 | Unaudited abridged |
| OPUS TECHNOLOGIES LIMITED | Electrical equipment | London | 2003 | Audit-exempt subsidiary |
| OPUS TRUST MARKETING LIMITED | Paper and paperboard | Leicester | 1999 | Group accounts |
| OPUS UK BINDING & FOILING LTD | Printing and recorded media | Verwood | 2008 | Total exemption (full) |
| OQEMA LIMITED | Chemicals | Oxford | 1975 | Full accounts |
| ORAL CREATIONS DENTAL LABORATORY LTD | Other manufacturing | Weybridge | 2009 | Total exemption (full) |
| ORANGE BIKES LTD | Ships, aircraft, rail and other transport | Halifax | 2006 | Total exemption (full) |
| ORANGE MUSIC ELECTRONIC COMPANY LIMITED | Electrical equipment | Borehamwood | 1976 | Full accounts |
| ORANGE TREE TECHNOLOGIES LIMITED | Computers, electronics and optics | Didcot | 2001 | Total exemption (full) |
| ORANGEBOX GROUP LIMITED | Furniture | Cardiff | 2000 | Full accounts |
| ORANGEBOX LIMITED | Furniture | Cardiff | 1997 | Full accounts |
| ORANWORTH LIMITED | Repair and installation of machinery | Lane,hamble, Southampton | 1977 | Total exemption (full) |
| ORAPI MAINTENANCE UK LIMITED | Chemicals | Wednesbury | 2007 | Small company accounts |
| ORBIT COMMUNICATION SYSTEMS EUROPE LTD. | Computers, electronics and optics | London | 2002 | Full accounts |
| ORBIT INTERNATIONAL PLC | Clothing | Birmingham | 1984 | Full accounts |
| ORBITAL FABRICATIONS LIMITED | Fabricated metal products | St Ives | 1988 | Medium company accounts |
| ORBITAL GAS SYSTEMS LIMITED | Computers, electronics and optics | Near Stone | 1984 | Full accounts |
| ORBITAL TOOLS LTD | Machinery and equipment | Cramlington | 2009 | Total exemption (full) |
| ORBITAL WELDING SERVICES LIMITED | Fabricated metal products | Stockport | 2008 | Total exemption (full) |
| ORBITEC LTD | Machinery and equipment | Derby | 2004 | Total exemption (full) |
| ORBRUV LIMITED | Repair and installation of machinery | Milnthorpe | 1998 | Total exemption (full) |
| ORCHARD BUSINESS SYSTEMS LIMITED | Repair and installation of machinery | Cheshire | 1997 | Total exemption (full) |
| ORCHARD DENTAL LABORATORY LIMITED | Other manufacturing | Bedale | 2010 | Total exemption (full) |
| ORCHARD EDUCATIONAL LIMITED | Other manufacturing | Nottingham | 2004 | Total exemption (full) |
| ORCHARD FENCING LIMITED | Wood products | Kent | 2001 | Total exemption (full) |
| ORCHARD FRESH FOODS LIMITED | Food products | Armagh | 2001 | Total exemption (full) |
| ORCHARD MARINA & BOAT BUILDERS LIMITED | Ships, aircraft, rail and other transport | Liverpool | 2003 | Small company accounts |
| ORCHARD PIGS (WALES) LIMITED | Food products | Wrexham | 2010 | Total exemption (full) |
| ORCHARD PRESS (CHELTENHAM) LIMITED | Printing and recorded media | Tewkesbury | 2003 | Total exemption (full) |
| ORCHARD PRESS LIMITED | Printing and recorded media | Swindon | 1989 | Total exemption (full) |
| ORCHARD REFRIGERATION LIMITED | Machinery and equipment | Armagh | 1997 | Total exemption (full) |
| ORCHARD TOYS LIMITED | Other manufacturing | Nottingham | 1979 | Total exemption (full) |
| ORCHARD VALLEY WOLVERHAMPTON LIMITED | Food products | Tenbury Wells | 1990 | Total exemption (full) |
| ORCHARD WAY PROPERTY GROUP LTD | Furniture | Sutton in Ashfield | 2010 | Medium company accounts |
| ORCHARDLEA FOODS LIMITED | Food products | Exeter | 1997 | Total exemption (full) |
| ORCHID ORTHOPEDIC SOLUTIONS SHEFFIELD LTD | Other manufacturing | Sheffield | 1973 | Full accounts |
| ORDEREXIT LIMITED | Other manufacturing | London | 1983 | Unaudited abridged |
| ORDERLINK LIMITED | Other manufacturing | Aintree | 1987 | Unaudited abridged |
| OREAN PERSONAL CARE LIMITED | Chemicals | Cleckheaton | 2008 | Group accounts |
| OREGON TIMBER FRAME LTD. | Wood products | Aberdeen | 1997 | Full accounts |
| OREXIS FRESH FOODS LIMITED | Food products | London | 1991 | Audit-exempt subsidiary |
| ORGANIC HERB TRADING LTD | Food products | Taunton | 1999 | Total exemption (full) |
| ORGANON PHARMA (UK) LIMITED | Pharmaceuticals | Cramlington | 1964 | Full accounts |
| ORGBAR ALUMINIUM LIMITED | Fabricated metal products | Solihull | 2008 | Total exemption (full) |
| ORHAN ELECTRICAL LIMITED | Repair and installation of machinery | St. Asaph | 2007 | Total exemption (full) |
| ORICA UK LIMITED | Chemicals | Warrington | 1998 | Full accounts |
| ORIEL PRINTING CO. LIMITED | Printing and recorded media | East Yorkshire | 1978 | Total exemption (full) |
| ORIEL STUDIOS DIGITAL LIMITED | Printing and recorded media | Merseyside | 2006 | Total exemption (full) |
| ORIENTAL MOTOR (UK) LTD. | Repair and installation of machinery | London | 1996 | Full accounts |
| ORIGIN COFFEE LTD | Food products | Porthleven | 2005 | Full accounts |
| ORIGIN COLOURS LTD | Pharmaceuticals | London | 2007 | Total exemption (full) |
| ORIGIN FRAMES LIMITED | Fabricated metal products | High Wycombe | 2002 | Group accounts |
| ORIGIN FURNITURE LIMITED | Furniture | Altrincham | 2005 | Total exemption (full) |
| ORIGIN GREENTECH LIMITED | Food products | Royston | 2002 | Full accounts |
| ORIGIN LIVE LIMITED | Electrical equipment | Hampshire | 2006 | Total exemption (full) |
| ORIGIN NORTHERN IRELAND LIMITED | Other manufacturing | Royston | 1985 | Full accounts |
| ORIGIN PACKAGING LIMITED | Other manufacturing | North Ferriby | 2009 | Full accounts |
| ORIGIN PET PRODUCTS LIMITED | Chemicals | London | 2010 | Total exemption (full) |
| ORIGIN STORAGE LIMITED | Computers, electronics and optics | Basingstoke | 2000 | Full accounts |
| ORIGIN UK OPERATIONS LIMITED | Chemicals | Royston | 1990 | Full accounts |
| ORIGINAL B.T.C. LIMITED | Glass, ceramics, cement and stone | Bromsgrove | 1998 | Group accounts |
| ORIGINAL LTD | Computers, electronics and optics | Shrewsbury | 2003 | Total exemption (full) |
| ORIGINAL MARQUETRY LIMITED | Wood products | Bristol | 2008 | Total exemption (full) |
| ORIGINAL STEEL SERVICES LIMITED | Basic metals | Dorchester | 2004 | Total exemption (full) |
| ORIGINAL STYLE LIMITED | Glass, ceramics, cement and stone | Exeter | 1995 | Full accounts |
| ORIGINAL WOODEN WINDOWS LIMITED | Wood products | Iver | 2007 | Total exemption (full) |
| ORIGINZONE LIMITED | Paper and paperboard | Swindon | 2002 | Total exemption (full) |
| ORION - LINK LIMITED | Repair and installation of machinery | Birmingham | 1978 | Unaudited abridged |
| ORION DESIGN AND PRINT LIMITED | Printing and recorded media | London | 1994 | Total exemption (full) |
| ORION OPTICS UK LIMITED | Other manufacturing | Newcastle under Lyme | 2006 | Total exemption (full) |
| ORION PROJECTS LIMITED | Computers, electronics and optics | Cornwall | 1987 | Total exemption (full) |
| ORION SCREEN PROCESS LIMITED | Other manufacturing | Hessle | 1984 | Total exemption (full) |
| ORIOR BY DESIGN LIMITED | Furniture | Newry | 2000 | Total exemption (full) |
| ORKNEY CHEESE COMPANY LIMITED | Food products | Kirkwall | 1999 | Small company accounts |
| ORKNEY MEDIA GROUP LIMITED | Printing and recorded media | Kirkwall | 2007 | Total exemption (full) |
| ORKNEY OFFICE SUPPLIES LIMITED | Repair and installation of machinery | Kirkwall | 1989 | Total exemption (full) |
| ORLEBAR BROWN LIMITED | Clothing | London | 2005 | Full accounts |
| ORLESTONEOAK LIMITED | Wood products | Ashford | 1998 | Total exemption (full) |
| ORLOFF LIMITED | Clothing | Kenilworth | 2003 | Total exemption (full) |
| ORMAL ELECTRONICS LIMITED | Computers, electronics and optics | Swindon | 2001 | Total exemption (full) |
| ORMANTINE INTERNATIONAL LIMITED | Computers, electronics and optics | Winchester | 1977 | Total exemption (full) |
| ORMAZABAL UK LIMITED | Repair and installation of machinery | St. Helens | 2003 | Full accounts |
| ORMERODS LIMITED | Printing and recorded media | Macclesfield | 1919 | Total exemption (full) |
| ORMISTON WIRE LIMITED | Fabricated metal products | Isleworth | 1923 | Total exemption (full) |
| ORMONVINE LIMITED | Repair and installation of machinery | Bridgend | 1999 | Unaudited abridged |
| ORMSBY OF DUN LAOGHAIRE LIMITED | Glass, ceramics, cement and stone | Southport | 1985 | Total exemption (full) |
| ORMSTON FABRICATION LTD | Fabricated metal products | Ryton | 2009 | Total exemption (full) |
| ORNUA FOODS UK LIMITED | Food products | Staffordshire | 1940 | Full accounts |
| ORNUA INGREDIENTS EUROPE (UK) LIMITED | Food products | Nantwich | 1985 | Full accounts |
| ORNUA INGREDIENTS UK LIMITED | Food products | Nantwich | 1996 | Full accounts |
| ORO LIMITED | Other manufacturing | Leeds | 1999 | Total exemption (full) |
| ORONA LIMITED | Repair and installation of machinery | Sheffield | 1977 | Full accounts |
| ORPHANS PRESS LIMITED | Printing and recorded media | Leominster | 1975 | Total exemption (full) |
| ORRELL FILTRATION LIMITED | Textiles | Stalybridge | 2004 | Unaudited abridged |
| ORRELL WINDOWS LIMITED | Other manufacturing | Wigan | 2004 | Unaudited abridged |
| ORTHENE CHEMICALS LIMITED | Chemicals | Harrow | 1976 | Full accounts |
| ORTHO-CLINICAL DIAGNOSTICS | Pharmaceuticals | Bridgend | 1990 | Full accounts |
| ORTHOEUROPE LIMITED | Other manufacturing | Abingdon | 1989 | Full accounts |
| ORTHOMOBILITY LTD | Other manufacturing | Abingdon | 2004 | Total exemption (full) |
| ORTHOPLASTICS LIMITED | Rubber and plastics | Bacup | 2005 | Full accounts |
| ORTHOS (ENGINEERING) LIMITED | Machinery and equipment | Leicestershire | 1956 | Total exemption (full) |
| ORTHOS (PROJECTS) LIMITED | Fabricated metal products | Leicestershire | 1977 | Total exemption (full) |
| ORTHOSERVE LIMITED | Other manufacturing | Sutton Coldfield | 2010 | Total exemption (full) |
| ORWELL ENGINEERING SOLUTIONS LIMITED | Machinery and equipment | Wirral | 2009 | Unaudited abridged |
| ORWELL PINE CO LIMITED | Furniture | Ipswich | 1998 | Total exemption (full) |
| OSA DOOR PARTS LIMITED | Fabricated metal products | Cannock | 2001 | Total exemption (full) |
| OSAI-UK LTD | Repair and installation of machinery | Milton Keynes | 1997 | Small company accounts |
| OSBIT LIMITED | Fabricated metal products | Riding Mill | 2000 | Audit-exempt subsidiary |
| OSBORN GLASS AND WINDOWS LIMITED | Glass, ceramics, cement and stone | Croydon | 2009 | Unaudited abridged |
| OSBORN-UNIPOL (UK) LIMITED | Glass, ceramics, cement and stone | Chepstow | 1941 | Medium company accounts |
| OSBORNE & SONS (SHELLFISH) LIMITED | Food products | Colchester | 1995 | Total exemption (full) |
| OSBORNE ENGINEERING LIMITED | Fabricated metal products | Cramlington | 1983 | Small company accounts |
| OSBORNE OF ILKESTON LTD | Wood products | Ilkeston | 2000 | Total exemption (full) |
| OSBORNE REFRIGERATORS LIMITED | Machinery and equipment | West Sussex | 1961 | Total exemption (full) |
| OSCAR FRIEDHEIM LIMITED | Machinery and equipment | Hemel Hempstead | 1999 | Small company accounts |
| OSCAR MAYER LIMITED | Food products | Wrexham | 1976 | Group accounts |
| OSDIN TEXTILES TRADING LIMITED | Textiles | Glasgow | 1985 | Total exemption (full) |
| OSET BIKES LIMITED | Ships, aircraft, rail and other transport | Swadlincote | 2007 | Total exemption (full) |
| OSG U.K. LIMITED | Fabricated metal products | Basildon | 1969 | Full accounts |
| OSHKOSH AEROTECH UK LIMITED | Machinery and equipment | Cardiff | 1978 | Full accounts |
| OSI ELECTRONICS (UK) LTD | Computers, electronics and optics | London | 1986 | Medium company accounts |
| OSI FOOD SOLUTIONS UK LIMITED | Food products | Scunthorpe | 1978 | Audit-exempt subsidiary |
| OSL CUTTING TECHNOLOGIES LIMITED | Machinery and equipment | Sheffield | 2001 | Full accounts |
| OSM (IRL) LTD | Repair and installation of machinery | Newry | 2006 | Total exemption (full) |
| OSMOR PRODUCTS LIMITED | Electrical equipment | Alcester | 1988 | Small company accounts |
| OSMOTECH U.K. LIMITED | Repair and installation of machinery | Hamble | 1993 | Total exemption (full) |
| OSP ENGINES LIMITED | Motor vehicles and parts | Dudley | 2002 | Total exemption (full) |
| OSPREY FINISH LIMITED | Fabricated metal products | Wrotham Heath | 1990 | Unaudited abridged |
| OSPREY HEALTHCARE LIMITED | Other manufacturing | Wigan | 2008 | Total exemption (full) |
| OSPREY LIMITED | Rubber and plastics | Scarborough | 1959 | Total exemption (full) |
| OSPREY SLING COMPANY LIMITED | Other manufacturing | Wigan | 2009 | Total exemption (full) |
| OSPREY3 LTD | Machinery and equipment | Aberdeen | 2000 | Audit-exempt subsidiary |
| OSSETT BOX LIMITED | Other manufacturing | Ossett | 1995 | Total exemption (full) |
| OSSETT BREWERY TAVERNS LIMITED | Beverages | West Yorkshire | 2007 | Small company accounts |
| OSSETT BREWING COMPANY LIMITED | Beverages | Ossett | 1997 | Small company accounts |
| OSSETT FURNISHINGS (UK) LTD | Furniture | Doncaster | 2010 | Unaudited abridged |
| OSTERMANN UK LIMITED | Furniture | Droitwich | 2010 | Small company accounts |
| OSTLING ETCH-MARK LIMITED | Other manufacturing | Stafford | 2008 | Total exemption (full) |
| OSTRICH ARTS LIMITED | Other manufacturing | London | 1997 | Unaudited abridged |
| OSTRICH FEATHER MANUFACTURING COMPANY LIMITED | Textiles | Stamford | 1935 | Unaudited abridged |
| OSWESTRY DENTAL LABORATORY LIMITED | Other manufacturing | Bristol | 2004 | Audit-exempt subsidiary |
| OT19 LIMITED | Paper and paperboard | Northampton | 1986 | Total exemption (full) |
| OTAQ CONNECTORS LIMITED | Other manufacturing | Ulverston | 1997 | Total exemption (full) |
| OTC CONCEPTS LIMITED | Pharmaceuticals | Ashford | 2002 | Audit-exempt subsidiary |
| OTG INTERNATIONAL LIMITED | Motor vehicles and parts | London | 2009 | Total exemption (full) |
| OTG PRECISION ENGINEERING LIMITED | Fabricated metal products | London | 2009 | Total exemption (full) |
| OTHER PEOPLE'S SCULPTURE LIMITED | Other manufacturing | Norwich | 2007 | Total exemption (full) |
| OTICON LIMITED | Computers, electronics and optics | Birmingham | 1973 | Full accounts |
| OTIS GROUP SERVICES LIMITED | Other manufacturing | Stourbridge | 1999 | Unaudited abridged |
| OTIS LIMITED | Machinery and equipment | Leicester | 1917 | Full accounts |
| OTODYNAMICS LIMITED | Other manufacturing | Hertfordshire | 1988 | Total exemption (full) |
| OTS (BIRMINGHAM) LIMITED | Machinery and equipment | Barton under Needwood | 2001 | Total exemption (full) |
| OTTAWAY ENGINEERING LIMITED | Fabricated metal products | Eastleigh | 1968 | Total exemption (full) |
| OTTER BREWERY LIMITED | Beverages | Honiton | 1998 | Total exemption (full) |
| OTTER CONTROLS LIMITED | Computers, electronics and optics | Buxton | 1946 | Group accounts |
| OTTER SURFBOARDS LIMITED | Wood products | Truro | 2010 | Total exemption (full) |
| OTTER VALLEY DAIRY LTD | Food products | Honiton | 2010 | Total exemption (full) |
| OTTERVALE HAULAGE LIMITED | Glass, ceramics, cement and stone | Exeter | 2000 | Total exemption (full) |
| OTTIMO DIGITAL LTD | Printing and recorded media | Newport | 2009 | Total exemption (full) |
| OTTO BOCK HEALTHCARE PLC | Other manufacturing | Egham | 1976 | Full accounts |
| OTTOMAN TEXTILES LIMITED | Textiles | Manchester | 1986 | Total exemption (full) |
| OUR CAROLINE INVESTMENTS LTD | Food products | London | 2007 | Total exemption (full) |
| OURVITA HEALTH & BEAUTY SOLUTIONS LIMITED | Food products | Runcorn | 1994 | Full accounts |
| OUT OF HAND LIMITED | Printing and recorded media | Bristol | 1997 | Total exemption (full) |
| OUT OF WOOD LIMITED | Furniture | Truro | 2001 | Total exemption (full) |
| OUTBOARD MOTOR LOC LIMITED | Fabricated metal products | Barnstaple | 2001 | Total exemption (full) |
| OUTDOOR & SPORTS COMPANY LIMITED | Clothing | Macclesfield | 1970 | Full accounts |
| OUTDOOR ADVERTISING (UK) LTD | Other manufacturing | Birmingham | 2009 | Total exemption (full) |
| OUTOKUMPU STAINLESS LIMITED | Basic metals | Sheffield | 1993 | Full accounts |
| OUTRAM RESEARCH LIMITED | Electrical equipment | London | 1985 | Total exemption (full) |
| OUTSHINE WINDOWS LIMITED | Rubber and plastics | Abergavenny | 2003 | Total exemption (full) |
| OUTSIDE IN (CAMBRIDGE) LIMITED | Other manufacturing | Cambridge | 1991 | Total exemption (full) |
| OUTSMART THE THIEF LIMITED | Ships, aircraft, rail and other transport | York | 2005 | Total exemption (full) |
| OUTSTAND LIMITED | Printing and recorded media | Canterbury | 2004 | Total exemption (full) |
| OUTWORK JEWELLERY SERVICES LIMITED | Fabricated metal products | Birmingham | 1999 | Total exemption (full) |
| OVALRING LIMITED | Other manufacturing | Birmingham | 1980 | Total exemption (full) |
| OVARRO LD LTD | Electrical equipment | Leicester | 1994 | Full accounts |
| OVATION BOAT SERVICES LTD | Repair and installation of machinery | Whetstone | 2010 | Total exemption (full) |
| OVATION SYSTEMS LIMITED | Computers, electronics and optics | Thame | 1987 | Small company accounts |
| OVEC SYSTEMS LIMITED | Machinery and equipment | Glasgow | 1992 | Total exemption (full) |
| OVENMILL LIMITED | Food products | St. Leonards on Sea, | 1989 | Total exemption (full) |
| OVERHEAD LINE FITTINGS (U.K.) LIMITED | Fabricated metal products | Near Atherstone | 1987 | Total exemption (full) |
| OVERPRINT LIMITED | Printing and recorded media | Harefield | 1973 | Total exemption (full) |
| OVERSOLVE LIMITED | Printing and recorded media | Nottingham | 1992 | Unaudited abridged |
| OVERTON (UK) LIMITED | Machinery and equipment | Lincolnshire | 1992 | Total exemption (full) |
| OVERVIEW LIMITED | Computers, electronics and optics | Woking | 1988 | Small company accounts |
| OVINGTON BOATS LIMITED | Other manufacturing | Tyne and Wear | 1997 | Total exemption (full) |
| OWA (UK) LIMITED | Other manufacturing | Windsor | 1982 | Small company accounts |
| OWAIN ATKINS CABINET MAKERS LIMITED | Wood products | Stroud | 2003 | Unaudited abridged |
| OWEN BARRY LIMITED | Leather goods and footwear | Street | 1991 | Total exemption (full) |
| OWEN BROTHERS METERING UK LIMITED | Electrical equipment | Oldham | 2007 | Total exemption (full) |
| OWEN DEVELOPMENTS LIMITED | Motor vehicles and parts | Abingdon | 2003 | Total exemption (full) |
| OWEN EYRE PALLETS LIMITED | Wood products | Manchester | 2006 | Total exemption (full) |
| OWEN FABRICATIONS LTD | Basic metals | Greenford | 2001 | Unaudited abridged |
| OWEN FARMING TRANSPORT LIMITED | Ships, aircraft, rail and other transport | Bury St Edmunds | 1988 | Total exemption (full) |
| OWEN GREENINGS & MUMFORD LIMITED | Rubber and plastics | Kidlington | 1962 | Group accounts |
| OWEN INDUSTRIAL FILTRATION LIMITED | Machinery and equipment | Barlaston Stoke on Trent | 1998 | Total exemption (full) |
| OWEN MUMFORD LIMITED | Other manufacturing | Chipping Norton | 1976 | Group accounts |
| OWEN SPRINGS LIMITED | Fabricated metal products | Rotherham | 2004 | Audit-exempt subsidiary |
| OWEN TAYLOR AND SONS LIMITED | Food products | Derby | 1975 | Medium company accounts |
| OWENS NUTRITION LIMITED | Food products | Burton-on-Trent | 2000 | Audit-exempt subsidiary |
| OWENS-CORNING VEIL U.K. LTD. | Glass, ceramics, cement and stone | Liversedge | 1951 | Full accounts |
| OXBORROW ENGINEERING LIMITED | Fabricated metal products | Clacton on Sea | 2004 | Unaudited abridged |
| OXDALE PRODUCTS LIMITED | Machinery and equipment | Chesterfield | 2008 | Unaudited abridged |
| OXERA REPAIR PRODUCTS LIMITED | Other manufacturing | Huddersfield | 2010 | Total exemption (full) |
| OXERRA PIGMENTS UK LIMITED | Chemicals | Stoke-on-Trent | 1989 | Full accounts |