Company Index
- O and Co Interim Ltd - London
- O C and C Strategy Consultants Ltd - London
- O D S Ltd - Glasgow
- O'Byrne & Kennedy - Waltham Cross
- O'hara Waste Ltd - Uxbridge
- O'heal - Waterlooville
- O'herlihy and Co Ltd - Glasgow
- O'Neill Peck Associates Ltd - Worksop
- O'Neill Strategic Management - Southampton
- Oak House Consultants Ltd - Chesham
- Oak House Consulting Group - Brixham
- Oak I T Management Services Ltd - Bristol
- Oakbridge Group - Halstead
- Oakbridge Services Ltd - Warminster
- Oakdene Hollins Ltd - Aylesbury
- Oakfield Consultancy Partnership, The - Chester
- Oakland Calvert Consultants Ltd - London
- Oakland Consulting Plc - Leeds
- Oakleigh Consulting Ltd - Manchester
- Oakleigh Corporate Enterprises Ltd - Manchester
- Oakleigh Wood - Bristol
- Oaktree Executive Ltd - Yateley
- Oaktree Interiors Ltd - Wokingham
- Oakwell Management Services Ltd - Ilkeston
- Oakwood Environmental Ltd - Godalming
- Oasis Europe Ltd - Reading
- Oasis Recruitment Group Ltd - Fareham
- Oasis Search Ltd - London
- OBR Occupational Services Ltd - Telford
- Oca Ltd - Liverpool
- Occ Computer Personnel (Northern) Ltd - Nantwich
- Occupational Performance Solutions - Worcester
- Occupational Psychology Group - Manchester
- Ocean E S U Services Ltd - Billingham
- Ocelot Systems Ltd. - Warminster
- Ochre Management Services Ltd - Ashford
- Oco Consulting - Belfast
- Octarine Investments Ltd - Bristol
- Octopus Cabling Ltd - Colchester
- Octopus Management Ltd - Cleckheaton
- Odgers Ray and Berndtson - London
- Odyssey Partnership - Glasgow
- Office Angels Ltd - Portsmouth
- Office Essentials - Winsford
- Office Express - Sutton Coldfield
- Office Of Innovation and Enterprise - Newtownabbey
- Office People Recruitment Ltd - Woking
- Officebroker com - Tamworth
- Officefront - London
- Officestar Group Ltd - Coleford
- Official Space - London
- Offiserve - Rochester
- Offiserve Ltd - Rochester
- Offrisk Consulting Ltd - Glasgow
- Og Management - Crewkerne
- OGI Groundwater Specialists Ltd - Durham
- Ogilvie Booth Coles - Eastbourne
- Ogilvie Ross - Perth
- OHEC (uk) Ltd - Manchester
- Ohs Ltd - Birmingham
- Oil Firing Technical Association - Ipswich
- Oil Masters - Newton Abbot
- Oil Spill Response Ltd - London
- OilExec com - Aberdeen
- Old Bell 3 - Ludlow
- Old House Interim Services Ltd - Evesham
- Old Park Farming (Lytchett) Ltd - Poole
- Olive Domestic Metering Ltd - Abingdon
- Oliver - London
- Oliver Kevin - Hexham
- Oliver Parker - Bromsgrove
- Oliver Scott Consulting Ltd - London
- Oliver Wyman and Co - London
- Olliver Communications - Godstone
- Ology Business Ltd - Warrington
- Olsberg S P I Ltd - London
- Olsen and Co - Leicester
- Olson Projects Ltd - Lytham St Annes
- Olympic Staff Agency - London
- Omega Management Consultants - London
- Omega Partnership - Liverpool
- Omega Performance - London
- Omega Resources Ltd - Alloa
- Omega Selection Services - Stonehouse
- Omex Environmental Ltd - Dunfermline
- Omitec Resources - Coventry
- Omnia Offices Ltd - Sheffield
- Omniarc Ltd - Altrincham
- Omnico Construction Management Services Ltd - Hove
- Omnium IT Recruitment Ltd - Stoke on Trent
- On Demand Management - London
- On Target Recruitment Ltd - Surbiton
- Oncocene Ltd - Cambridge
- One Stop Promotions (Leicester) Ltd - Leicester
- One To One Partnership - Shepperton
- Online Resourcing Group Ltd - Leeds
- Onlink Consultants Ltd - Larne
- Ontrack International Ltd - Bishops Stortford
- Onyx Recruitment - Luton
- Onyx Total Waste Management - Walsall
- Opagus - Milton Keynes
- Opal Management Consultancy - Caerphilly
- Opale Management Services Ltd - Sandhurst
- Opco - London
- Open Futures Ltd - Edinburgh
- Open Minds Consultants Ltd - Evesham
- Open Minds Consulting - Conwy
- Operational Command Training Organisation Ltd - Chester
- Opex Consultants Ltd - Reading
- Opp Ltd - Oxford
- Oprax Propety Management - London
- Ops International - Manchester
- Opsa House Business Centre - York
- Optima Consulting Partners Ltd - Guildford
- Optimise Outsourced Business Development Ltd - Berkhamsted
- Optimum Business Solutions - Bolton
- Optimum Nationwide - Milton Keynes
- Optimum Sales Results - Belper
- Option Hygiene Ltd - Nelson
- Option Technologies Ltd - Fleet
- Options Employment Ltd - Hounslow
- Optis Europe Ltd - Grimsby
- Optometric Technology Group Ltd - London
- Opus Resourcing Ltd - Beckenham
- Opus Staff Ltd - Belfast
- Oracle Recruitment Ltd - Leeds
- Oram and Robinson Ltd - Bishops Stortford
- Orbis Management Ltd - Harrogate
- Orbit Services 2000 Ltd - Leeds
- ORC Worldwide - London
- Orchard Consultancy - Witney
- Orchard Consulting (Gb) Ltd - Hook
- Orega (Staines) Ltd - Staines
- Organic Services Ltd - Crieff
- Organics Ltd - Coventry
- Organisation & People Development Ltd - Leamington Spa
- Organisational & Personal Development Consultants Ltd - Sherborne
- Organisational Development Through People - Woking
- Origo Services Ltd - Currie
- Orion Business Centres Ltd - Stamford
- Orion Clinical Services Ltd - Slough
- Orion Electrotech Ltd - Reading
- Orion Professional Services Ltd - Aylesbury
- Orion Project Support Resources Ltd - Irvine
- Orion Resourcing Ltd - Aylesbury
- Orman Risk Analysts - London
- Ormeau Business Park - Belfast
- Orridge Business Sales - Falkirk
- Orridge Business Sales Ltd - Canterbury
- Orridge Business Sales Ltd - Woodbridge
- ORS UK Ltd - Burton on Trent
- Ortus Business Development Agency - Belfast
- Oryx (Executive Search) Ltd - Bristol
- Osborne Waste Co - Glasgow
- Osirian Consulting Ltd - Reading
- Osney Media Ltd - London
- Osprey Recruitment Ltd - Monmouth
- Othergroup Ltd - Bristol
- Oto Models - Windlesham
- Otsuka Pharmaceutical Europe Ltd - London
- Outside in (Cambridge) Ltd - Cambridge
- Outside Uk Ltd - Leeds
- Outsights - London
- Outsource UK Ltd - Swindon
- Outsourced Personnel Services Ltd - Sunbury on Thames
- Outstanding Outcomes Ltd - Farnborough
- Oval Motor Company - Westbury
- Overseas Development Corporation Ltd - London
- Overseas Development Institute - London
- Owen Payne Recruitment Services Ltd - Wolverhampton
- Owl Training and Development - Birmingham
- OWM&M Design Ltd - Hastings
- Ownglen Ltd - Wakefield
- Oxford Analytical Ltd - Bicester
- Oxford Bio Medica Ltd - Oxford
- Oxford Biosphere Ltd - Oxford
- Oxford City Centre Managment Company - Oxford
- Oxford Intelligence Ltd - Milton Keynes
- Oxford Management Solution Ltd - Oxford
- Oxford Plastics Consultancy Ltd - Burgess Hill
- Oxford Research and Development Co - Bicester
- Oxford Vacuum Science Ltd - Chipping Norton
- Oxley Fitzpatrick & Associates Ltd - Worksop
- Oyster Partnership, The - London
- Oyster Retail Recruitment - Manchester
