Company Index - O
- O & H Construction Ltd. - London
- O & M Office Equipment Ltd. - Ashtead
- O G Consultancy Ltd - Bedford
- O Jones - Llanidloes
- O Rooney Coach Hire Ltd. - Newry
- O Seaman & Son Ltd. - Bury St Edmunds
- O Turner Insulation Ltd. - Grimsby
- O Widmann and Co Ltd - Brentford
- O & D Williams - Liverpool
- O & E B Gibbin - Whitland
- O & G Engineering Ltd. - Banstead
- O & H Capital Ltd. - London
- O & H Estates Ltd. - London
- O & H Removals - Chard
- O & K E Williams - Malpas
- O & M Electrical Services Ltd. - Halifax
- O & M Manuals Ltd - Plymouth
- O & O Designs Ltd. - Aldershot
- O & S Doors Ltd. - Dungannon
- O A Chapman & Son Ltd - Bungay
- O A Curtis & Sons - Newmarket
- O A S Imports Ltd. - Oldham
- O A Steel Fabrication - London
- O and M Life and Pensions Ltd - Colchester
- O B Metals Co. Ltd. - Willenhall
- O B Builders - Warrington
- O B Denison - Ipswich
- O B S P - Chatham
- O B Y Ltd. - Warrington
- O C & C Strategy Consultants Ltd. - London
- O C C Ltd - Harrow
- O C E U K - Birmingham
- O C Jewellery Manufacturers and Design - Chester
- O C Jewers & Sons Ltd - Bury St Edmunds
- O C L Ltd. - Basildon
- O C M Business Systems Ltd. - Pershore
- O C S Consulting Ltd. - London
- O C Sawbridge Artistic Blacksmiths - Milton Keynes
- O C T A Ltd. - Northwood
- O C W & A M Morgan - Haverfordwest
- O C Z Technology - Cheltenham
- O Comitti & Son Ltd. - London
- O D B Group Ltd. - Godalming
- O D S Distributions - Manchester
- O D T (Europe) Ltd. - London
- O D Tranter - Usk
- O Davies - Stratford upon Avon
- O Design Ltd. - Lichfield
- O E Group Ltd. - Stafford
- O E Sunshades Ltd. - Mansfield
- O E C Ltd - Wakefield
- O E C People - Margate
- O E Clark & Son - Newark
- O E Document Solutions Ltd - Lincoln
- O E Hoare & Son - Witney
- O E M Europe Ltd. - Lymington
- O E M Marketing Services Ltd. - Enfield
- O E M Toolmakers Ltd. - Plymouth
- O E M Lighting Ltd. - Bristol
- O E Morris & Sons - Presteigne
- O E S (London) Ltd. - Romford
- O E S International Ltd. - Cramlington
- O E S Medical Ltd. - Abingdon
- O E S Uk Ltd. - Kendal
- O Eco Textiles Ltd - London
- O F S (Guernsey) Ltd. - Guernsey
- O G Professionals Ltd. - Peterborough
- O G Davies & Sons - Carmarthen
- O G E Chapman & Son - Spalding
- O G F Ltd. - London
- O G Martin - Narberth
- O Gates - Pewsey
- O Ginestri & Sons - Larkhall
- O Gormans Ltd - Bicester
- O H Lewis & Son - Llandrindod Wells
- O H Price - Presteigne
- O H Recruitment - London
- O Hare S Millers - Castlewellan
- O I L Engineering Ltd. - Aberdeen
- O I W (Steels) Ltd. - Benfleet
- O Imaging Corporation Ltd. - London
- O J Hallam & Son (Melton Mowbray) Ltd. - Melton Mowbray
- O J Smith Lighting Ltd. - Bishops Stortford
- O J Stephens & Co. Ltd - Caldicot
- O J Bouncy Castles - South Ockendon
- O J Jones - Amlwch
- O J Roberts & Son - Beaumaris
- O J S Jewellery Manufacturers Ltd. - Birmingham
- O J Smith - Bishops Stortford
- O J Thomas & Son - Llanfyrnach
- O J Williams - Montgomery
- O J Williams (Merchants) Ltd - Carmarthen
- O K Coal - Leek
- O K I Systems (Ireland) - Belfast
- O K International Ltd. - Eastleigh
- O K Mugleston & Son - Romford
- O K S Computer Troubleshooters - Horsham
- O Kahn (Printers) Ltd. - London
- O Kane Irish Foods - Wembley
- O Kane Poultry Ltd. - Ballymena
- O Kay Automatics Ltd. - Redcar
- O L D Engineering Co. Ltd. - Hinckley
- O M & D M Jones - Newport
- O M A - Congleton
- O M C Barbecues Ltd - Neston
- O M C Joinery - Ilkeston
- O M Double Glazing - London
- O M Francis & Son - Launceston
- O M Harries - Haverfordwest
- O M K Design Ltd. - London
- O M V Trading Services Ltd - London
- O P Chocolate Ltd. - Merthyr Tydfil
- O P L - Worthing
- O P S - Nottingham
- O People - Wotton under Edge
- O Petherick & Son - Bude
- O R & J Vanstone - Okehampton
- O R & W H Parry - Holyhead
- O R B Creative Ltd - Birmingham
- O R B Jewellery - Manchester
- O R Bailey - Chichester
- O R C Construction Ltd - Leeds
- O R C International Ltd. - London
- O R Jewellers - Newry
- O R Jones & Sons Ltd - Holyhead
- O R S - Burton on Trent
- O Rings Ltd - Chichester
- O S Marine Ltd - Southampton
- O S Supplies Ltd - Fairford
- O S F Ltd. - Wolverhampton
- O S H Ltd - Woodbridge
- O S Print Finishing Ltd. - Reading
- O S R - Norwich
- O S R Recruitment Services Ltd (Ipswich) - Ipswich
- O S S Electrical Controls Ltd. - Oldham
- O Shepherd & Son Ltd. - Brackley
- O So Handi - Aylesbury
- O T Africa Line - Birmingham
- O T Brick Specialists - Ipswich
- O T C Computing Ltd. - London
- O T D S Ltd - Croydon
- O T Drains - Workington
- O T M Consulting Ltd - Guildford
- O T M Servo Mechanism Ltd. - Egham
- O T R Tyres Ltd. - Alfreton
- O T R (Sutton in Ashfield) - Sutton in Ashfield
- O T S (Holdings) Ltd - Moreton in Marsh
- O T S (Nw) Ltd. - Ruthin
- O T W Chandler & Co - Abergavenny
- O Thomas - Haverfordwest
- O Toffolo & Son Ltd. - Hull
- O Toole Coach Hire - Chigwell
- O V Garland & Sons Ltd. - Shepton Mallet
- O W Bunkers (Uk) Ltd. - Windsor
- O W Owen - Pwllheli
- O W & R B Pritchard - Bodorgan
- O W & R J James - Goodwick
- O W L Security Services Ltd - Pontyclun
- O Wynn J & Rhian M Davies - Fishguard
- O&Es Manufacturing - Liverpool
- O&M IT Ltd - Cranbrook
- O'Boyle Civil Engineering Ltd. - Lincoln
- O'Brien & Price (Cheltenham) - Cheltenham
- O'Brien and Partners - Carmarthen
- O'Brien Communications - Chester
- O'Brien Construction Ltd. - Thurso
- O'Brien Contractors Ltd - Leamington Spa
- O'Brien Telecoms Ltd - Leicester
- O'Briens Cambs - Cambridge
- O'Bryne & Kennedy - Waltham Cross
- O'Callaghan Brickwork Contractors - Slough
- O'Connell Plant & Groundworks Ltd. - London
- O'Connell Site Services - Liverpool
- O'Connell Site Services Ltd. - Liverpool
- O'Connor Associates - London
- O'Connor Builders Ltd. - Wembley
- O'Connor Construction Co. Ltd. - Cheltenham
- O'Connor Engineering Ltd - Wakefield
- O'Connor Plant & Construction - Purley
- O'Connor Sokolowski Partnership L L P - Croydon
- O'Connor Utilities Ltd. - Manchester
- O'Dell Rework Solutions Ltd - Hinckley
- O'Dell Signs - Hayle
- O'Doherty Bros Ltd. - Londonderry
- O'Donnell Civil Engineers Ltd - Wakefield
- O'Donnell Developments Ltd. - Birmingham
- O'Donnell Engineering - Littlehampton
- O'Donnell Michael A - Wakefield
- O'Donnell Plant & Construction Ltd - Ellesmere Port
- O'Donovan Construction Managenment - London
- O'Dwyer McCall Iddon Ltd. - Manchester
- O'Gara Construction Ltd. - Manchester
- O'Gara Joinery Ltd - Belfast
- O'Grady Peyton International Recruitment U K Ltd. - Solihull
- O'Grady-Peyton International Recruitment - Solihull
- O'Hagan & Madden - Newry
- O'Hagan Plant - Newry
- O'Halloran - Warrington
- O'Hanlon & Farrell Contracts Ltd - Newry
- O'Hanlon Bros Construction Ltd. - Dungannon
- O'Hanlon Engineering - Dungannon
- O'Hanrahan Associates Search & Selection - Tenterden
- O'Hara Brian - Keighley
- O'Hara Bros Surfacing Ltd. - Pinner
- O'Hara Mushrooms - Enniskillen
- O'Hara Transport Ltd. - Pinner
- O'Hara Waste Oils - Uxbridge
- O'Hare - Downpatrick
- O'Hare & McGovern Ltd. - Newry
- O'Hare Animal Feeds - Newry
- O'Hare Associates Architectural Consultants Ltd. - Newry
- O'Hare Coal Merchants - Newry
- O'Hare Developments Ltd - Newry
- O'Hare Joinery & Building - Liverpool
- O'Hare Steel - Newry
- O'Haren Ronnie P - Newport Pagnell
- O'Hares Jewellers - Chester
- O'Hearne & Partners - Bradford
- O'Herlihy & Co. Ltd. - Glasgow
- O'Kane & Devine Construction Ltd. - Londonderry
- O'Kane & McLaughlin (Builders) Ltd. - Londonderry
- O'Kane Bros - Londonderry
- O'Kane Fuels - Magherafelt
- O'Keefe Construction (Greenwich) Ltd. - London
- O'Keefe Construction (Greenwich) Ltd. - Westerham
- O'Keeffe Groundworks Ltd. - Watford
- O'Leary & Goss Architects - Bristol
- O'Leary William & Lottie - Knighton
- O'Mahoney Engineering Services Ltd - London
- O'Marah & Morris Groundwork - Wimborne
- O'Neil & Brennan - Birmingham
- O'Neil Associates Ltd - Kendal
- O'Neill and Co Ltd - Glasgow
- O'Neill Architectural Services - Chichester
- O'Neill Associates (Search & Selection) Ltd. - Cardiff
- O'Neill Bros (Building Contractors) Ltd. - Londonderry
- O'Neill Cleaning Ltd. - Kirkcaldy
- O'Neill Decorating - Bridgwater
- O'Neill Electrics - Omagh
- O'Neill Engineering Services Ltd. - Aberdeen
- O'Neill Gmbh - Rushden
- O'Neill Medicalia Ltd. - Liverpool
- O'Neill Modern Media - Slough
- O'Neill P - Bolton
- O'Neill Peck Associates Ltd. - Worksop
- O'Neill Planning Associates Ltd - York
- O'Neill Signs - Runcorn
O'Neill Strategic Management - Southampton- O'Neill Tool & Plant Hire Ltd. - London
- O'Neill Tractors - Newry
- O'Neill Transport - Strabane
- O'Neill's Coal Merchant - Dungannon
- O'Neill's Decorating Centre - Salford
- O'Neills Decorating Centre - Heywood
- O'Neills Ltd - Kingston upon Thames
- O'Neils Civils - Manchester
- O'Reilly Clark Printing Services - Enfield
- O'Reilly Contract Scaffolding Ltd - Solihull
- O'Reilly Transport (Ireland) Ltd. - Belfast
- O'Reordan Building Contractors Ltd. - Leatherhead
- O'Rourke Construction & Surfacing Ltd. - London
- O'Rourke Glass & Glazing - Oldham
- O'Rourke Groundworkers Ltd - Skipton
- O'Shaughnessy Bros Ltd. - Huddersfield
- O'Shea & Tompkinson (Llanwrda) - Llanwrda
- O'Sullivan Construction Ltd. - Harrow
- O'Sullivan Lofts - Dudley
- O'Sullivan Management Consulting Ltd - St Albans
- O'Tuama Brian Architechts - London
- O-So-Kozee Ltd. - Barking
- O-Two Construction - London
- O-Vee Spring Gauges Ltd - Bristol
- O-Vee Spring Gauges Ltd - Watford
- O-Video (UK) Ltd - Reading
- O. & H. Construction Ltd - London
- O.A. Barraclough Ltd - Hook
- O.M.A. (U.K.) Ltd - Northwich
- O.S. Engineering - Liverpool
- O.S.R. International Ltd - Birmingham
- O2 - Bexleyheath
- O2 - Leamington Spa
- O2 - Slough
- O2 (Salford) - Salford
- O2 Communications Ltd. - Slough
- O2I Design Ltd - Langport
- O2OLAP Ltd - London
- Oa 5 Com Ltd. - Much Hadham
- OA-Learning - Stevenage
OAASIS Group Ltd - Great Yarmouth- Oacis UK Ltd - Aberdeen
- Oadby Building Plastics Ltd. - Leicester
- Oadby Plastics Ltd - Cannock
- Oadby Plastics Ltd - Leicester
- Oadby Plastics Ltd - Warrington
- Oades Plant Ltd. - Egham
- Oak & Wood Ltd. - Lingfield
- Oak Amusements - Harrogate
- Oak and Willow Garden Ltd - Halifax
- Oak Apple Embroidery - Sherborne
- Oak Appliance Testing - Birmingham
- Oak Audio Visual - Northampton
- Oak Building Services Ltd. - Manchester
- Oak Business Services - Poole
- Oak C W E Ltd - Belfast
- Oak Ceramics Ltd - Rugeley
- Oak Court (Denbridge) Residents Ltd - Sevenoaks
- Oak Couture - Nottingham
- Oak Creative Water Engineering - Newtownabbey
- Oak Developments (London) Ltd - Saffron Walden
- Oak Embroiderers Ltd. - Coventry
- Oak Engineering - Rhyl
- Oak Engineering Co. Ltd. - Hebburn
- Oak Engineering Co. (Old Hill) Ltd. - Cradley Heath
- Oak Environmental Solutions Ltd - Leyland
- Oak Furniture Land - Bolton
- Oak Furniture Land - Chester
- Oak Furniture Land - Farnham
- Oak Furniture Land - Glasgow
- Oak Furniture Land - Grays
- Oak Furniture Land - Milton Keynes
- Oak Furniture Land - Reading
- Oak Furniture Land - Swindon
- Oak Homes Ltd. - Chester
- Oak House Consulting Group - Brixham
- Oak House Development Services Ltd. - Tadley
- Oak House Interiors - Orpington
- Oak I T Management Services Ltd. - Bristol
- Oak Industrial Supplies - Sutton in Ashfield
- Oak Lea Homes Ltd. - Bury
- Oak Leaf Building Services Ltd - Windsor
- Oak Leaf Furniture - York
- Oak Leaf Gates - Hereford
- Oak Leaf It Ltd - Hull
- Oak Leaf Joinery - Peterborough
- Oak Leaf Windows - Eastleigh
- Oak Leasing Ltd - Chepstow
- Oak Lodge Automatics Ltd. - Walsall
- Oak Lodge Designs - Alfreton
- Oak Maritime (U K) Ltd - London
- Oak Medical Services Ltd. - Brigg
- Oak Oilfield Consultants Ltd. - London
- Oak Perfection Machinery Sales Ltd. - Brighton
- Oak Refrigeration and Mechanical Services Ltd - Leicester
- Oak Roofing - Birmingham
- Oak Square Architectural Design - Norwich
- Oak Street Fabrication - Norwich
- Oak Systems Ltd. - Telford
- Oak Technical Services - Newtownabbey
- Oak Telecom Ltd. - Poole
- Oak Tree Cabinet Makers - Swindon
- Oak Tree Engineering Ltd - Hull
- Oak Tree Farm Ltd. - Haverfordwest
- Oak Tree Forge - Paignton
- Oak Tree Homes Ltd. - Newark
- Oak Tree Landscapes - Chorley
- Oak Tree Machines Ltd - Guildford
- Oak Tree Polythene - Eye
- Oak Tree Property Services Ltd - Malton
- Oak Tree Summer Houses - Swindon
- Oak Tree Tavern - Wrexham
- Oak Tubs Direct Ltd - Paisley
- Oak Warehouse Ltd - Chester
- Oak Wood Furniture Manufacturers Ltd. - Pontypridd
- Oakapple Renewable Energy Ltd - Leeds
- Oakbank Services - Dumfries
- Oakbank Sunbeds - Oldham
- Oakbase Designs Ltd. - Tilbury
- Oakbay International - Southampton
- Oakbay Services Ltd. - Liverpool
- Oakbray Ltd - Stoke on Trent
- Oakbridge Business Consultants - Halstead
- Oakbridge Homes Ltd. - St Albans
- Oakbridge International Ltd - Haverhill
- Oakbridge Services Ltd. - Warminster
- Oakburn Import-Export Ltd - Leamington Spa
- Oakcad Ltd - Bletchley
- Oakcraft - Ripley
- OAKCRAFT at Holmsley Mill - Ringwood
- Oakcrest Builders Ltd - Bexleyheath
- Oakdale Contractors Ltd. - Bradford
- Oakdale Design Services Ltd. - Newport
- Oakdale Fencing Ltd. - Bedworth
- Oakdale Homes (Pembrokeshire) Ltd. - Haverfordwest
- Oakdale Hydro Services (Training) Ltd - Blackwood
- Oakdale International Ltd - Lancaster
- Oakdale Project Management Services Ltd - Doncaster
- Oakdale Textiles Ltd - Manchester
- Oakden Leisure - Chepstow
- Oakdene Automatic Transmissions - Nottingham
- Oakdene Contractors Ltd - Brentwood
- Oakdene Hollins Ltd - Aylesbury
- Oakdene Printing - London
- Oakdene Services - Newtownabbey
- Oake Textiles - London
- Oakeford - Blandford Forum
- Oakenclough Buildings Ltd - Preston
- Oakenhurst Aircraft Services Ltd. - Rayleigh
- Oakes Bros Ltd (Stockbridge) - Stockbridge
- Oakes Bros Ltd - Horsham
- Oakes Bros Ltd - Hungerford
- Oakes Bros Ltd - Newbury
- Oakes E P & Son - Smethwick
- Oakes K C & Sons - Batley
- Oakes Leisure Ltd - Stourbridge
- Oakes Metering Consultancy Ltd. - Inverurie
- Oakes Studio - Birmingham
- Oakes Surveys Ltd - Belper
- Oakes Trevor & Susan - Birmingham
- Oakey D J & Son - Banbury
- Oakfield - Bristol
- Oakfield Cabinets Ltd - Antrim
- Oakfield Construction C Eng Ltd. - Nottingham
- Oakfield Farm - Ascot
- Oakfield Fencing - Sunderland
- Oakfield Media - Henfield
- Oakfield Residents Ltd. - London
- Oakford Technology Ltd - Chippenham
- Oakfords Ltd. - Kidderminster
- Oakham Ales - Peterborough
- Oakham Design - Dudley
- Oakham Engineering - Evesham
- Oakham Environmental Waste & Recycling Centre Ltd - Brierley Hill
- Oakham Fabrications - Cradley Heath
- Oakham Lift Supplies Ltd - Oldbury
- Oakham Sheet Metal Co. Ltd. - West Bromwich
- Oakham Tyre Co. (Rutland) Ltd. - Oakham
- Oakheart Ltd. - Leicester
- Oakhill Independent Financial Services Ltd - Woking
- Oakhill Optical Laboratory Ltd. - Stourbridge
- Oakhinge Ltd. - Walsall
- Oakhirst Ltd - Milton Keynes
- Oakhouse Curtains - Reading
- Oakhouse Ltd - Lewes
- Oakhouses com - Eastleigh
- Oakhurst - Salisbury
- Oakhurst (Building & Civil Engineering) Ltd. - Oxted
- Oakhurst (Southport) Ltd. - Southport
- Oakhurst Blinds Ltd. - Salisbury
- Oakhurst Business Systems Ltd. - Hassocks
- Oakhurst Resources Ltd - Leicester
- Oakingham Q G Construction - Wokingham
- Oakinsen Ltd. - Oldbury
- Oakita - Leighton Buzzard
- Oakland Air Control Ltd. - Worcester
- Oakland Associates - London
- Oakland Associates Ltd. - Sutton
- Oakland Building Services Ltd. - Enfield
- Oakland Calvert Consultants Ltd. - London
- Oakland Carriages - Wolverhampton
- Oakland Coachbuilders Ltd - Worcester
- Oakland Conservatories - Ashton under Lyne
- Oakland Conservatories - Manchester
- Oakland Construction Ltd. - Bristol
- Oakland Consulting Plc - Leeds
- Oakland Developments - Wigan
- Oakland Domestic Appliances - Hyde
- Oakland Doors - Newtownabbey
- Oakland Farms Ltd. - York
- Oakland Feeds Ltd - York
- Oakland Furniture Ltd. - Market Harborough
- Oakland Glass & Joinery - Leicester
- Oakland Glass Ltd. - Dewsbury
- Oakland Green Homes Ltd. - Bedford