Construction Company Directory: O
Please click on a company to view the full profile:
- O & B Builders
- O & H Hampton Ltd
- O & H Properties Ltd
- O & H UK Ltd
- O & L Surfacing Ltd
- O & P Construction Services Ltd
- O Donnell Roofing
- O Heap
- O Lturner
- O T Africa Line Limited
- O& Hconstruction Limited
- O'kane Poultry Limited
- O'keefe Soil Remediation Limited
- O'keeffe Groundworks Ltd.
- O'rourke Civil Engineering Limited
- O'sullivan Construction Limited
- O&G Environmental Services
- O&M I.T. Ltd
- O'Boyle Brothers Ltd
- O'Brien Gas & Oil Services Ltd
- O'Brien Property Services
- O'Brien Roofing & Leadworks Ltd
- O'Connell Plant & Groundworks Ltd
- O'Connor & Sons
- O'Connor Construction Company Ltd
- O'Connor Construction Services
- O'Connor Contracts
- O'Connor Utilities Limited
- O'Connor Utilities Ltd
- O'Dave Construction Ltd
- O'Donnell O'Neill Design Associates
- O'Donovan (Waste Disposal) Limited
- O'Gorman Civils
- O'Grady Plant & Haulage Ltd.
- O'Hagan & Madden
- O'Hagan Contracts
- O'Hagan Crane Hire
- O'Hagan Plant
- O'Halloran & O'Brien Limited
- O'Halloran & O'Brien Ltd
- O'Hanlon Bros Construction Ltd
- O'Hara Services Ltd
- O'Hare Roofing & Property Maintenance
- O'Hare Steel
- O'Kane Construction Ltd
- O'Kane Site Engineering Ltd
- O'Keasse & Redgwell
- O'Keefe Construction (Greenwich) Limited
- O'Keefe Scanlon Ltd
- O'Keeffe Building Services Ltd
- O'Keeffe Groundworks Ltd.
- O'Mac Construction Ltd
- O'Neil Associates
- O'neill And Brennan Construction Limited
- O'Neill and Brennan Group
- O'Neill Architectural Services
- O'Neill Brickwork
- o'neill commercial cleaning
- O'Neill Concrete Flooring Ltd
- O'Neill Construction Ltd
- O'Neill General Building
- O'Neill Groundworks
- O'Neill Roofing
- O'Neill's Builders
- O'Neill's Gas Services
- O'Reilly Builders
- O'Reilly Contract Scaffolding Ltd
- O'Reillys Groudworks Ltd
- O'Rourke Civil Engineering Limited
- O'Rourke Contracting PLC
- O'Rourke Groundworkers
- O'Rourke Investments Limited
- O'Sullivan Ceilings
- O'Sullivan Civil Engineering
- O'Sullivan Construction Ltd
- O-i Manufacturing Uk Limited
- O.C.S. Group Limited
- O.c.sconsulting Plc
- O.c.sgroup Limited
- O.ctanner Limited
- O.e.blimited
- O.rbuilding Services Limited
- O.S. Locke Limited
- O.S.F. Limited
- O.S.R. International Limited
- O3 Interiors
- Oadby Plastics Limited
- Oak Beams Direct
- Oak by Design
- Oak Country Buildings Ltd
- Oak Design & Construction
- Oak Designs Company
- Oak Developments (Bedfordshire) Ltd
- Oak Facades
- Oak Fencing
- Oak Forest Properties Ltd
- Oak Hill Joinery Ltd
- Oak Holdings Plc
- Oak Homes
- Oak House Management Suffolk Ltd
- Oak Perfection Machinery Sales Limited
- Oak Roofing Services
- Oak Security Systems
- Oak Services Limited
- Oak Square Architectural Design
- Oak Street Fabrication
- Oak Tree Builders Merchants
- Oak Tree Homes Ltd
- Oak Tree Parks Limited
- Oak Valley Construction
- Oak Wood Roofing
- Oakbourne Construction Limited
- Oakbridge Homes Limited
- Oakburn Properties Limited
- Oakbury Contractors
- Oakdale (contracts) Limited
- Oakdale Construction & Maintenance Ltd
- OAKDALE CONTRACTS LTD
- Oakdale Driveways Ltd
- Oakdale Fencing Ltd
- Oakdale Project Management Services Ltd
- Oakdale Roofing
- Oakdale Windows Limited
- Oakdean Construction
- Oakdell Properties Ltd
- Oakdene Construction
- Oakdene Securities
- Oakeland Contractors
- Oakely Drives & Patios Ltd
- Oaken Holt Care Limited
- Oakencroft Ltd
- Oakendene Estates Ltd
- Oakengates Carpet Company
- Oakenstone Design Planning Build
- Oakes Luxury Homes Ltd
- Oakes Specialist Excavations Limited
- Oakes's
- Oakeve
- Oakeve Interiors
- Oakfield (Foods) Limited
- Oakfield Press Limited
- Oakfield Services Ltd
- Oakfield UK Ltd
- Oakfields Building Ltd
- Oakgate Group
- Oakham Brickwork
- Oakham Clothing Limited
- Oakhanger Joinery
- Oakhill Construction
- Oakhill Group Limited
- Oakhill Homes Scotland Ltd
- Oakhurst (Building & Civil Engineering) Limited
- Oakhurst Construction
- Oakland Building Services Ltd
- Oakland Construction
- Oakland Drives
- Oakland Limited
- Oakland Projects Ltd
- Oakland Roofing Ltd
- Oakland Site Investigation Ltd
- Oakland Vale Ltd
- Oaklands Garden Maintenance
- Oaklands Landscaping
- Oaklands Mill Ltd
- Oaklea Builders
- Oakleaf Building
- Oakleaf Lofts Ltd
- Oakleaf Preservations
- Oakleaf Roofing Ltd
- Oaklee Housing Association
- Oakleigh Driveways
- Oakleigh Joinery
- Oakleigh Lodge Social Club Limited
- Oakleigh Rest Home Limited
- Oakley (u.k.) Limited
- Oakley Contractors
- Oakley Driveways & Patios
- Oakley Driveways Ltd
- Oakley Industrial Services Ltd
- Oakley Plant
- Oakley Plumbing Supplies Ltd
- Oakley Property Management Limited
- Oakley Stables
- Oakman Architecture Ltd
- Oakmere Homes
- Oakmil Developments Ltd
- Oakmont Construction Limited
- Oakmont Drives
- Oakmore Builders Ltd
- Oakmore Construction Ltd
- Oakpark Security Solutions Ltd
- Oakridge Construction & Roofing Ltd
- Oakridge Construction Ltd
- Oakridge Contractors
- Oakridge Developments UK Ltd
- Oakridge Property Ltd
- Oakridge Recruitment Ltd
- Oakridge Timber Ltd
- Oaks Conversions
- Oaks Damp Proofing Company Ltd
- Oaks Property Services Ltd
- Oaksfield Construction Limited
- Oakside Construction Ltd
- Oakspan Ltd
- Oaktree Developments
- Oaktree Joinery
- Oaktree Property Services
- Oaktree Wood Moulding
- Oakus Ltd
- Oakvalley Roofing
- Oakview Estates Limited
- Oakway Homes Limited
- Oakway Roofing
- Oakwell Paving Ltd
- Oakwhite Contracts Ltd
- Oakwood Building Contractors Ltd
- Oakwood Fire & Safety Solutions Ltd
- Oakwood Fuels Limited
- Oakwood Groundworks Limited
- Oakwood Group
- Oakwood Leisure Limited
- Oakwood Refurbishment Ltd
- Oakwood Roofing
- Oakworth Homes
- Oakwrights
- Oakybuild Ltd
- OAQ Wales
- Oase (Uk) Limited
- Oasis Air Conditioning Limited
- Oasis Cladding Ltd
- Oasis Construction UK Ltd
- Oasis Dental Care (central) Limited
- Oasis Engineering Solutions Ltd
- Oasis Healthcare Plc
- Oasis Plastics Direct
- Oasis Stores Limited
- Oasys Property Solutions
- Oatlands Investments Limited
- Oatley
- Oatley Ceilings & Floors Limited
- OB Building & Joinery Ltd
- OB Construction
- OB Properties
- Obam Ltd
- Oban Ales Ltd
- Obas UK
- OBB Builders
- OBC Building
- Obc Insurance Consultants Limited
- OBE Fabrications
- Obelisk London Ltd
- OBG Construction
- Obibo Ltd
- Object Architecture
- Obl European Transport Limited
- OBP Architects & Designers
- Obras Construction
- Obrien Home Improvements
- OBW Engineering Services Ltd
- OC Building Services Ltd
- Ocado Limited
- Occa Design
- Occo Coolers Telford Ltd
- Oce (uk) Limited
- Ocean Builders Supplies
- Ocean Construction
- Ocean Engineering Fire Ltd
- Ocean Media Group Limited
- Ocean Outdoor Uk Limited
- Ocean Supplies Ltd
- Ocean Tiles Limited
- Ocean Timber & Plywood Ltd
- Ocean Yachts (Uk) Limited
- Oceana Supplies Ltd
- Oceania Trading Limited
- Oceanic Jewellers Limited
- Oceanic Pawel Poniatowski Ltd
- Oceansafe Limited
- Oceanscan Ltd
- OCI UK
- OCK Chartered Surveyors
- Ockwells Limited
- OCL Kingswinford Ltd
- OCL Regeneration Ltd
- OCME UK Limited
- OConnor Concrete
- OConnor Stone Ltd
- OCS Environmental Services
- OCSC
- Octagon Developments Limited
- Octagon Group Limited
- Octagon Maintenance & Shopfitting Ltd.
- Octain Construction Ltd
- Octave Homes
- October House Group
- Octopuss Complete All Trades
- Octopustravel Group Limited
- Octovision Media Limited
- Ocubis
- Ocular Press Limited
- Oculus Architects
- OD Fire Protection Ltd
- ODC Building
- ODC Ltd
- Odd Bods Exterior Cleaning Specialists
- Odd Job & Handyman Services
- Odd Job Building Company Limited
- Odd Job Man
- Odd Job Rob
- Odd Jobs Done Wright
- Odd Jobs Newbury Ltd
- Odd Jobs R Us
- Oddjob Property Services
- Oddly Oak
- Odeon Cinemas Limited
- Odeon Limited
- ODF Jell Drilling
- ODH Heating
- Odin Construction
- Odlar Ltd
- ODM
- Odysea Limited
- Odyssey Builders
- Odyssey Financial Technologies Plc
- Odyssey Knebworth Limited
- Odyssey Markides
- OE Drewitt Contracting
- OE Electrics
- OE March Design
- Oem Carpentry
- Oem Public Limited Company
- Oep Furniture Group Plc
- Oerlikon Balzers Coating Uk Limited
- Oet Waste Management
- Offa-Fix Formwork Ltd
- Offaplan Ltd
- Offerhappy Limited
- Offerton Sand & Gravel
- Offgrid CCTV
- Office & General Environmental Serives
- Office 1 (1995) Limited
- Office Angels Limited
- Office Chair Renovation Limited
- Office Chairman Limited
- Office Clearance London
- Office Depot Uk Limited
- Office Gold Limited
- Office Holdings Limited
- Office House
- Office Image Interiors Limited
- Office Partitions
- Office Principles
- Office Screens UK
- Office Services (Nantwich) Limited
- Officecircle
- Offie Extra Ltd
- Offord & Associates
- Offset Architects
- Offshore Design Engineering Limited
- Offshore Marine People
- Offshore Stainless Supplies Limited
- Offshore Stainless Supplies Ltd
- Offsite Limited
- Ofquest Limited
- Ofset Ltd
- OG Davies & Sons
- OG Stonemasonry Contractors Ltd
- OGC Maintenance Ltd
- OGD Scaffolding Limited
- Ogden Properties Ltd
- Ogdens Clearances
- Ogihara Europe Limited
- Ogilvie Construction
- Ogilvie Geomatics
- Ogilvie Roofline
- Ogilvy & Mather Group (holdings) Limited
- OGL
- Oglesby & Limb Ltd
- Oglesby Nottm Ltd
- Ogley Bros Ltd
- Ogmore Valley Building Supplies Ltd
- OGP
- OGS Gardening Ltd
- Ohalloran Property Development
- Ohl Group Limited
- Ohm Professional Sound Systems
- OHSS
- OI Manufacturing UK Ltd
- Oiba Interiors Ltd
- Oil & Gas Systems Ltd
- Oil & Pipelines Agency
- Oil Fired Equipment Services
- Oil Plus Limited
- Oil-Dri UK Ltd
- Oilfast Fuels & Fleet Solutions Group
- Oilgear Towler Limited
- Oilquip
- OJ Developments Ltd
- OJ Fallon & Sons
- OJ Roofing & Building
- OJ Roofing & Carpentry
- OJ Teagle
- OJL
- OJN Brickwork
- OJR
- Oka Direct
- Okehampton Builders
- Okeland Ltd
- Oki Europe Limited
- Okite
- Ola Ltd
- Old 2 New Projects
- Old Basket Supply Limited(The)
- Old Beams Lettings
- Old Channel Property Ltd
- Old Field Reclamation
- Old Ginger Developments
- Old Git Builders
- Old Hall Enterprises Limited
- Old Las Limited
- Old Mill Roofing
- Old Oak Joinery
- Old Road Securities Plc
- Old School Builders
- Old School Joinery
- Old Swan Gas Services
- Old Town Paving
- Oldbuk Limited
- Oldbury Aluminium Alloys Ltd.
- Olde Worlde Oak Joinery Ltd
- Olde Worlde Property Care
- Oldeani Limited
- Oldfield Design Ltd
- Oldfield Roofing
- Oldham Bros
- OLDHAM BROS LTD
- Oldham Bros Ltd.
- Oldham Council Environmental Services
- Oldham Engineering Limited
- Oldham Gas Detection Ltd
- Oldham Plumbers
- Oldham Seals Limited
- Oldland Builders & Company
- Oldman Homes
- Oldroy Buildings & Design Ltd
- Oldstone Fireplaces
- Olfacutters
- Olimay Property Services Limited
- Olimegs
- Olinex Design
- Oliphant Construction
- Olivand Metal Windows Limited
- Olive Building Contractors
- Olive Services
- Olive Tree Renovations Ltd
- Oliveira Constructions
- Oliver & Cooksey Ltd
- Oliver & Oliver Property Management
- Oliver & Robb Architects
- Oliver & Sons Limited
- Oliver Ashley Ltd
- Oliver Bilney Maintenance
- Oliver Chapman Architects
- Oliver Connell & Son Ltd
- Oliver Construction Limited
- Oliver Heath Design
- Oliver John Contracts & Maintenance Ltd
- Oliver Laws
- Oliver MacKett
- Oliver Matthews Property Services
- Oliver Roofing
- Oliver St James
- Oliver T Properties Ltd
- Oliver Wyman Limited
- Olivers Builders
- Olivetti Uk Limited
- Olivison Ltd
- Ollertons
- Ollmec
- Olney Building Services
- Olphert & Brown
- Olse
- Olsen U.K. Limited
- Olson Design Group
- Olson Timber Buildings Ltd
- Olton Builders
- Oluwaleke Kupoluyi
- Olympia Testing (Holdings) Limited
- Olympic Plumbing & Bathrooms
- Olympic Renewables
- Olympic Scaffold & Tower Hire Ltd
- Olympic Scaffolding
- Olympik Markings Limited
- Olympus Scaffolding
- Olympus Site Solutions ltd
- Olympus Tool Hire & Sales
- Olympus Uk Limited
- OM Living
- OMA Interiors Ltd
- Omaq Interiors
- OMB GB Ltd
- Omb Uk Ltd
- OMC Technology
- Omd Group Limited
- Omedex Ltd
- Omega
- Omega Access North
- Omega Building Services Ltd
- Omega Engineering Limited
- Omega Fire Engineering
- Omega G Building Works
- Omega Group
- Omega Home Improvements
- Omega Laser Services
- Omega Partnership Limited
- Omega Partnership Ltd
- Omega Platinum Limited
- Omega Scaffolding Solutions Ltd
- Omega Services
- Omega Spares Ltd
- Omega Steel Building Solutions Ltd
- Omega Stone Ltd
- Omenport Development Ltd
- OMF Derek Cox Architects
- OMI Architects
- OMJ Developments Ltd
- OMJ Utilities Ltd
- Omnetica Limited
- Omni Group
- Omnia Machinery
- Omnide Ltd
- Omnis Construction
- Omniscient Construction Ltd
- Omron Electronics Limited
- OMS
- Omstec Ltd.
- Omurca Ltd
- Omv (u.k.) Limited
- On Architecture Ltd
- On Building & Surveying Ltd
- On Davis Newbridge Joinery
- On Design Associates Ltd
- On Level Paving Ltd
- On Site Catering
- On Site Projects
- On Site Services (Gravesend) Limited
- On Site Tools
- On Target Scaffolding Limited
- On Target Scaffolding Ltd
- On The Green Interiors
- On The Mark
- On The Rock Construction
- On The Spot Welding Limited
- On Top Roofing Contractors
- On Track Construction Ltd
- On-Site Roofing
- ONB Contracts Ltd
- OnDemand Projects
- Onduline Building Products Limited
- One 17 Design
- One Build
- One Call
- One Call Building Services Ltd
- One Call Hire
- One Call Hire Limited
- One Call Vehicle Services
- One Creative Environments Ltd
- One Fine Day Developments Ltd
- One Little Indian Limited
- One Medical Group
- One Ortu Services
- One Point Design
- One Point Survey Equipment
- One Solution Construction
- One Step Joinery
- One Stop Builders
- One Stop Building Materials Direct Limited
- One Stop Building Services
- One stop hire
- One Stop Loft Shop Ltd
- One Stop Managed Waste Solutions Ltd
- One Stop Promotions Ltd
- One Stop Property Maintenance
- One Stop Refurbs Ltd
- One Stop Roofing
- One Stop Stores Limited
- One Stop Supplies Limited
- One to One Handyman Services
- One To One Office Solutions Limited
- One to One Roofing
- One Touch Solution
- One-Off Cleaning London
- One-Sec Limited
- One-Stop Property Services
- Oneils Roofline Ltd
- Ones & Twos Location Loos
- Onesite Group
- onesystem limited
- Onevision Software (uk) Limited
- Ongar Building Services Ltd
- Ongas
- Onison
- Onken
- Onley Prison Services Limited
- Online Building Plastics
- Online Business Made Easy
- Online Desks Ltd
- Online Electronics
- Online Engineering Ltd
- Online Safety Training Ltd
- Only Oak Furniture
- Onny Developments Limited
- Onsen Homes
- Onshore Construction
- Onsite Building Control Ltd
- Onsite Central Limited
- Onsite North East
- Onsite Services
- Onsite Solutions
- Onsite Specialist Maintenance
- Onstyle Lifting Ltd
- Ontex Healthcare Uk Limited
- Ontick Plant Hire
- Ontime Automotive Limited
- Ontime Building Contractors Ltd
- Onward Fabrications Ltd
- Onward Holdings Limited
- Onwatch Plc
- Onyx Building Products Ltd
- Onyx Construction Consultants Ltd
- Onyx Windows Limited
- Ooak Developments Ltd
- OP Construction
- Opal Contracts (u.k.) Limited
- Opal Telecom Limited
- Opec PLC
- Opec Prime Development
- Opel Construction Limited
- Open Architecture
- Open Building Research Ltd
- Open Business Solutions Logistics Limited
- Open Cities Ltd
- Open Interiors Limited
- Open International Publishing Limited
- Open Plan Contractors Ltd
- Open Property Group
- Open University Worldwide Limited
- Open View Properties
- Open Vista Ltd
- Openproperties Solutions Ltd
- Operated Access Cherry Picker Hire
- Operator Force Ltd
- Operis Construction Ltd
- Opico Limited
- Opie & Peacock
- Oppidan Ltd
- Opsis Visuals
- Optare Group Ltd
- Opti-Mix
- Optic Interiors Ltd
- Optichrome Limited
- Opticrealm Ltd
- Optik Leisure
- Optikinetics Limited
- Optim Contract Services Limited
- Optima Boilers
- Optima Builders
- Optima Contracting Limited
- Optima Foundations Ltd
- Optima Products Limited
- Optimize Gas & Plumbing Ltd
- Optimum Connections Limited
- Optimum Efficiency Ltd
- Optimum Group Services Plc
- Optimum Planned Maintenance Ltd
- Optimum Plumbing Ltd
- Optimum Roofing & Builders
- Optimum Sales Results Limited
- OPTIMUM SECURITY LTD
- Optimum Timber Supplies Ltd
- Optimus Build Ltd
- Options Energy Resource
- Options Skills
- Opto International Limited
- Optomen Television Limited
- Opus 2 Architect
- Opus International Consultants Holdings (uk) Limited
- Opus Land North Ltd
- or Consulting Engineers Ltd
- Ora Property Services Ltd
- Ora Scaffolding
- Oracle Builders
- Oracle Corporation Uk Limited
- Oracle Emea Management
- Oracle Property Services
- Oram Joinery
- Orange Apple Ltd
- Orange Fire Protection Group
- Orange House Company
- Orange Key
- Orange Personal Communications Services Limited
- Orange Plant
- Orange Retail Limited
- Orange Works
- Orapi Limited
- ORB Quantum Consulting
- Orbell Associates Ltd
- Orbit Architects
- Orbit Lens
- Orbit Southern
- Orbital Chartered Surveyors
- Orbital Equipment Ltd
- Orbital Fabrications Ltd
- Orbital Sound Limited
- Orblux Limited
- Orchard (developments) Holdings Public Limited Company
- Orchard Associates
- Orchard Building Solutions
- Orchard Carpentry
- Orchard County Construction
- Orchard Developments Limited
- Orchard Events Limited
- Orchard Fire And Security Limited
- Orchard Homes & Development Ltd
- Orchard Homes South West Ltd
- Orchard House Foods Limited
- Orchard House Interiors
- Orchard Joinery
- Orchard Materials
- Orchard Mead Ltd
- Orchard Property Maintenance
- Orchard Roofing
- Orchard Roofing & Building Ltd
- Orchard Street Furniture
- Orchard Timber Buildings
- Orchardstone
- Orchestrate Design & Build Ltd
- Orchid Communications Ltd.
- Orchid Developments
- Orchidway Properties
- Orchman Road Marking Contractors
- Ord Industrial & Commercial Supplies
- Organic Architects
- Organic Construction Solutions
- Organic Roofs
- Organico Realfoods Limited
- Organon Laboratories Limited
- Orgbar Aluminium Ltd
- Orianna
- Oriel Architecture
- Oriel Design Ltd
- Orient Sourcing Services Limited
- Oriental Commodities Limited
- Oriental Contracting Company Ltd
- Orientrose Contracts Limited
- Origan General Contractors
- Origin Direct
- Origin Interiors Ltd
- Origin-Pro Roofing
- Original Book Works
- Original Double Glazed
- Original Field of Architecture
- Original Formwork
- Original Stone Driveways
- Original Styles & Restoration
- Original Wooden Windows
- Oriole Constructors Ltd
- Orion Decorating Services Limited
- Orion Developments Limited
- Orion Energy Solutions Ltd
- Orion Group
- Orion Land & Leisure
- Orion Property Services Ltd
- Orion Scaffolding Contractors Anglia Ltd
- Orion Security Print Limited
- Orion Storage Solutions Limited
- Orion Trent Holdings Limited
- Oris Construction Ltd
- Orkney Boats Limited
- Orkney Builders (contractors) Limited
- Orkney Glass Fibre Limited
- Orkney Mechanical Services Limited
- Orkney Sea Farms Limited
- Orlando Interior Design
- Orme Architecture
- Orme Construction
- Orme Ltd
- Orme Midlands Ltd
- Ormerod International Limited
- Ormerods Limited
- Ormken
- Ormonde Joinery Products Ltd
- Orms Designers + Architects Limited
- Ormskirk Paving Company
- Orocco Joinery
- Orooj Chartered Architect
- Orostream
- Orpheus Aftermarket Limited
- Orpington Mini Skips Limited
- Orpington Timber & Building Supplies Limited
- Orpwood Associates
- Orrell Group
- Orrell Structures
- Orritt Landscapes
- Orrtec Limited
- Ors Contracting Limited
- ORS PLC
- Orso Limited
- Ortho-Kinetics (U.K.) Limited
- Orthos Projects Ltd
- Orton Estates Ltd
- Orvec International Limited
- Orwell Paving & Landscapes
- Orwell Trucks Limited
- OS 31
- OS Design & Build Ltd
- OS Locke Ltd
- Osai-Uk Ltd
- OSB Building Services Ltd
- Osbit Ltd
- Osborn & Kent Construction Ltd
- Osborn Brickwork
- Osborn Construction
- Osborn Securities Limited
- Osborn Steel Extrusions Limited
- Osborne & Company Warrington Ltd
- Osborne Construction Estimating
- Osborne Delta Ltd
- Osborne Developments
- Osborne Engineering Limited
- Osborne Fabrication Ltd
- Osbornes Chartered Architects
- Osbourn White Ltd
- Osbournes Quantity Surveyors Ltd
- OSC Self Tapping & Drilling Screws and Hidden Deck Fasteners
- Oscar Faber Plc
- Oscar Mayer Limited
- Oscar Plant Hire And Sales (Maidstone) Limited
- Oseaman & Son Limited
- Osei Design Associates
- Osem U.K. Limited
- OSG Architecture Ltd
- OSG UK Ltd
- Osgood Brothers Limited
- Oskomera Facades (Uk) Limited
- OSM Architects Ltd
- Osmonds Transport And Planing Limited
- Osmosis Integration Limited
- OSN Group
- Osney Media Limited
- Oso (Buckingham) Limited
- Osprey Limited
- Osram Limited
- Ossett Industrial Projects Ltd
- Osso Ltd
- Osteotec Limited
- Ostick & Williams
- Ostley PJ Ltd
- OSW Plant Hire Ltd
- Oswaldtwistle Glass Limited
- Oswestry Glass
- Oswestry Scaffolding Ltd
- Oswyn Roberts Cyf
- OT Property Maintenance
- Otc Direct Limited
- OTEAC
- Otford Builders Merchants Limited
- Otford Builders Merchants Ltd
- Othello Roofing Services
- Otley Building & Roofing
- OTM Developments
- OTM Groundscare Ltd
- OTS Ltd
- Otter Interiors
- Otter Roofing Ltd
- Otter Trades & Management Services
- Otto (u.k.) Limited
- OTW Imaging Ltd
- Oundle Marina Limited
- Our Builder
- Our Communications Limited
- Our Home Handyman
- Ouse Valley Bait Company Limited
- Out Of Joint
- Out of Town Design
- Outbuild
- Outdoor Building Group
- Outdoor Mediacom Limited
- Outerform Fabrications Ltd
- Outline Print Service Limited
- Outlook Building Services
- Outlook Glazing Limited
- Outokumpu Stainless Limited
- Outreach Limited
- Outrigger Pads
- Outsource1
- Outsourced Professional Administration Limited
- Outwoods Timber
- Ovaall Roofing
- Oval (717) Limited
- Oval Estates (bath) Limited
- Oval International Limited
- Oval Products
- Oval Workshop
- Ovamill
- Ovans Pownall Timber Ltd
- Ove Arup & Partners Hong Kong Limited
- Ove Arup & Partners International Limited
- Ovendens Earthmoving Company Limited
- Overall Building Ltd
- Overbridge
- Overbury Interiors
- Overdale Estates Ltd
- Overhall
- Overland Developments
- Overmarsh Engineering
- Overmass And Chapple Limited
- Overprinting Machines (U.K.) Limited
- Overseas Trading Limited
- Oversite
- Overstone Building Services Limited
- Overstone Community Trust
- Overstone Developments Limited
- Overton Construction & Engineering
- Overton Design & Build
- Ovington Property
- OW Construction
- Owa (Uk) Limited
- Owa Group Limited
- OWA UK
- Owen Architects
- Owen Associates Ltd
- Owen Bennett Building Services
- Owen Brown Limited
- Owen Buchanan Builders Ltd
- Owen Building Contractors Ltd
- Owen Contractors Ltd
- Owen Coyle (Anodising) Limited
- Owen Delargy
- Owen Ellis Partnership Limited(The)
- Owen Erwin Contracting Ltd
- Owen Gillard Groundworks & Plant Hire
- Owen Greenings & Mumford Limited
- Owen Groundwork's & Construction Ltd
- Owen Hicks Architecture
- Owen Humphreys Builders
- Owen James Industrial Roofing
- Owen Lock
- Owen Pell Ltd
- OWEN POWERED ACCESS LTD
- Owen Taylor And Sons Limited
- Owen Technical Services Ltd
- Owen Troy Rohan - The OTR Group
- Owen Williams Group Limited
- Owen Williams Limited
- Owens & Company Building & Roofing
- Owens Galliver Architects
- Owens Ironmongery Stores Limited
- Owens Roofing Nefyn Ltd
- Owens Slate Services Limited
- Owens-corning Veil U.kltd.
- Owensley Construction
- Owl Architectural Engineer
- Owl Barns
- Owl Projects & Maintenance Ltd
- OWLA Ltd
- Owlan Transport Ltd
- Owlarchitecture.com
- Own Land Homes
- Own Property & Development
- Ownerschoice
- OWS Fire Rated
- Oxcrete Oxfordshire Concrete Ltd
- Oxedio Architecture
- Oxfam Shop
- Oxforce Building
- Oxford & County Driveways
- Oxford & District Building Services Ltd
- Oxford & London Building Company
- Oxford Analytica Limited
- Oxford Bearings Limited
- Oxford Blue Scaffolding Limited
- Oxford Cambridge And Rsa Examinations
- Oxford Commercial Interiors Ltd
- Oxford Construction Company
- Oxford Council Direct Services
- Oxford Extensions
- Oxford Fireplace Centre
- Oxford Fruit Company Limited
- Oxford Hydrotechnics Ltd
- Oxford Instruments Plc
- Oxford Landscapes Ltd
- Oxford Lofts
- Oxford Nutrition Limited
- Oxford Period Roofing
- Oxford Pipelines
- Oxford Pipework Services Ltd
- Oxford Preservation Trust
- Oxford Property Renovations Ltd
- Oxford Safety Components Limited
- Oxford Said Business School Limited
- Oxford Sash Windows
- Oxford Spires Scaffolding Ltd
- Oxford Surveying Services
- Oxford Surveying Services LTD
- Oxford University Fixed Assets Limited
- Oxfords Plumbing Supplies
- Oxfordshire Blasting
- Oxfordshire Paving
- Oxfordshire scaffolding solutions ltd
- Oxley Conservation Ltd
- Oxley Properties Ltd
- Oxman & Walker
- Oxoid Limited
- Oxom Ltd
- Oxon Builders
- Oxon Clean a Driveway Services
- Oxspring Development Services Ltd
- Oxus Gold Plc.
- Oxus Ltd
- Oxyburn Ltd
- Oxygen Projects
- Oyezstraker Office Supplies Limited
- Oyster Architectural Services
- OZ Build Construction Ltd
- OZ Plumbing & Heating Service Ltd
- Oz-uk Innovations Limited
- Ozard
- Ozman Company Limited
- Ozone Industries Limited
- Ozweld International
- Ozzie