Civil engineering main contractors in the UK

2724 UK main contractors offering civil engineering work.

• O O'Hara Bros. Surfacing Ltd Middlesex · Road surfacing · 10-49 employees

  O'Hara Bros. Surfacing Ltd is a privately owned company established in 1975, providing specialist highway maintenance solutions including resurfacing,

• O O'Mac Construction Ltd Isle Of Lewis · Main contractor · 50-249 employees

  O'Mac Construction is a quality, trusted building contractor, and trades supplier, specialising in all types of residential, commercial, and industria

• O O'Mahony Contractors Ltd Buckinghamshire · Rail infrastructure · 1-9 employees

  O'Mahony Contractors Ltd is a construction and maintenance company established in 2000, offering comprehensive services to the rail construction, main

• O O'Neill Construction (Fareham) Ltd Fareham · Civil engineering · 1-9 employees

  O'Neill Builders Fareham Hampshire is a local building company providing home extensions, new build, groundworks, driveways - and civil engineering co

• O O'Rourke Construction Ltd Birkenhead · Civil engineering · 10-49 employees

  O'Rourke Construction is a Birkenhead-based civil engineering contractor delivering large-scale projects across the UK. Specialising in drainage, EHV/

• O Oakland Be Ltd Bromsgrove · Design & build · 1-9 employees

  Oakland BE Ltd provides comprehensive construction services from cost evaluation and design to planning and construction for commercial, medical, and

• O Oakmere Homes Kendal · House builder · 10-49 employees

  Oakmere Homes is a house builder with over 40 years of experience, creating spacious, sustainable, and energy-efficient homes in desirable locations a

• O Oakstone Contracting Ltd Chelmsford · Civil engineering · 1-9 employees

  Oakstone Contracting is a civil engineering specialist offering highways, groundworks, and drainage services. They focus on safety, quality, and clien

• O Oaktree Living Stockton On Tees · House builder · 10-49 employees

  Oaktree Living delivers new build affordable housing developments for social housing providers across the North East, partnership, land-led and tender

• O Oakwood Construction (UK) Ltd Main contractor · 1-9 employees

  Oakwood Construction (UK) provides expert building and structural engineering services to Greater London. With over 27 years of experience, we handle

• O Oakwrights Ltd Farnham · Timber frame · 1-9 employees

  Oakwrights have been building bespoke new oak frame structures and repairing Listed Buildings since 1995. Combining the skills of experienced carpente

• O Oasis Developers Hastings Ltd London · Property developer

  OASIS Developers is a leading property developer with extensive interests in Property Development and Construction around London, and Southwest Englan

• O Ocean Construction Services Ltd London · Main contractor · 1-9 employees

  Ocean Construction Services Ltd offers quality building, engineering, and renovation services across the UK, specializing in residential, commercial,

• O Ocl Rail Ltd Benfleet · Rail infrastructure · 10-49 employees

  OCL Group Ltd is a specialist contractor and supplier within the rail industry, established in 2007. They offer a range of civils, building, and elect

• O Oct Construction Ltd Warrington · Demolition

  Expert groundworks and civil engineering solutions across the North West and beyond. With a commitment to safety, efficiency, and quality.

• O Octane Construction Ltd Pudsey · Main contractor · 1-9 employees

  Octane Construction is a UK construction company specialising in commercial construction, design and build, project management, civil engineering, ref

• O Octavius Infrastructure Ltd. Helsby · Civil engineering

  Octavius Infrastructure builds and maintains the roads, railways and transport hubs that keep Britain moving and keeps communities, economies and live

• O ODIN Construction Seaham · Design & build

  ODIN Construction offers professional building services across the North East, specialising in turnkey solutions for domestic and commercial clients.

• O Og Civils Ltd Beverley · Groundworks

  OG Civils Ltd is a leading groundworks and civil engineering company based in Beverley, East Riding of Yorkshire. With over 19 years of experience, we

• O Ogilvie Ground Works Ltd Brechin · Groundworks

  Ogilvie Ground Works Ltd, Expert Groundwork Engineers in Brechin. Providing quality drainage, driveways, and landscaping services across Angus.

• O OHMG Newry · Main contractor

  OHMG Ltd is a leading construction contractor and property developer across the UK and Ireland, committed to delivering infrastructure services and co

• O OHOB Morden · Groundworks

  O'Halloran & O'Brien (OHOB) is a respected UK construction group with over 50 years of experience, delivering complex, multi-disciplinary projects acr

• O Old Bells Construction & Demolition Ltd Stowmarket · Civil engineering · 10-49 employees

  Old Bells Construction & Demolition offers a range of services including civil engineering, groundworks, demolition, and marine works. They cater to d

• O Oldham Bros Ltd. Liverpool · Demolition · 1-9 employees

  Oldham Bros Ltd are trusted demolition contractors in Merseyside with over 75 years' experience. Specialists in demolition, site clearance, recycling,

• O Oliver Connell And Son Ltd South Greenford · Concrete works · 50-249 employees

  Oliver Connell & Son Ltd are an experienced reinforced concrete frame company with the ability to integrate groundwork and associated works in one pac

• O Olympia Projects Leeds · Design & build · 1-9 employees

  Olympia Projects Limited is an established, family-run commercial development business, delivering projects throughout the UK with over 55 years of ex

• O OMNYRA London · Main contractor

  OMNYRA provides execution-led leadership for high-risk industrial projects, shutdowns, and major hazard environments, restoring authority and control.

• O On Track Technicians Ltd Lisburn · Rail infrastructure · 50-249 employees

  A rail-only principal contractor delivering safe, reliable infrastructure solutions, skilled teams and proven framework programmes across NI, ROI & th

• O ONE SHOT UTILITIES LTD Wallington · Utilities

  One Shot Utilities is a Wallington based multi-utility company providing utilities upgrade and installation services, in nearby locations such as Bans

• O Onyx Civils Ltd Motcombe · Civil engineering

  Onyx Civils Limited is a groundworks and civil engineering company based in Dorset, operating as a main and principal contractor throughout the South

• O Optility Ltd Cradley Heath · Utilities · 10-49 employees

  Optility Limited delivers comprehensive infrastructure solutions across the UK, specializing in civil engineering, multi-utility projects, and telecom

• O Optimal Developments Ltd London · Main contractor · 1-9 employees

  Builders in King's Lynn with 36 years on the tools. New builds, extensions and renovations across West Norfolk, all backed by our 12-month snagging gu

• O Options Energy Services Ltd Harlow · Civil engineering · 10-49 employees

  Options Energy Services is an independent civil engineering contractor delivering utility infrastructure, energy, telecoms and traffic management serv

• O Optisol Services Ltd Cheshire · Solar PV · 10-49 employees

  Optisol Services is a leading UK solar farm cleaning company, delivering professional solar panel cleaning services for commercial solar farms across

• O Opus Construction And Civils Ltd Birmingham · Main contractor

  Opus Construction and Civils Ltd are a specialist construction company operating in the insurance repair sector on complex projects.

• O Opus Utility Solutions Warrington · Utilities · 10-49 employees

  Opus Utility Solutions is a Tier 1 SME delivering civil & electrical engineering solutions in the utilities sector, supporting DNOs and IDNOs around t

• O Orby Investment Belfast · Main contractor · 1-9 employees

  Orby Investment is a leading construction company in Northern Ireland, offering high quality property solutions across all sectors including social, p

• O Orchard Builders Stamford · Main contractor · 10-49 employees

  Orchard Building Contractors is a Stamford-based building company with over 30 years of experience. We pride ourselves on offering a reliable, quality

• O Oris Construction Ltd York · Groundworks · 1-9 employees

  Oris Construction Ltd is a family-owned groundworks and civil engineering company serving domestic and commercial clients across Yorkshire. They offer

• O Otisbum Ltd Sunderland · Main contractor

  Otisbum Engineering & Construction Company Ltd offers high-quality building, renovation, maintenance, and engineering solutions for residential, comme

• O Our Space Ltd Waterlooville · Main contractor · 1-9 employees

  Our Space Ltd is a trusted main contractor for construction, groundworks & landscaping for homeowners and the public sector across Hampshire.

• O OUTWEST CIVIL ENGINEERING Birmingham · Civil engineering

  OUTWEST Construction are a Civil Engineering contractor specialising in groundworks, roads and drainage, demolition, from the West Midlands, serving h

• O Oval Park Construction Ltd Northampton · Groundworks

  Groundworks and construction specialists based in Olney for over 15 years. Specialising in groundworks, residential and commercial new builds.

• O Ovamill Ltd Great Yarmouth · Main contractor · 50-249 employees

  Ovamill provides quality construction services and operational excellence through efficient planning, communication and competitive pricing. We tailor

• O Ovenden Allworks Ltd Canterbury · Civil engineering

  Ovenden Allworks is a family-owned construction company based in Kent, specialising in civil engineering, groundworks, earthmoving, and surfacing. Wit

• O Ovenden Earthmoving Co Ltd Canterbury · Groundworks · 10-49 employees

  UK specialist contractor for earthmoving, on-site crushing & recycling, and flood, coast & marine defences. Sustainable solutions, reliable delivery n

• O Ovenden Plant Hire Ltd Canterbury · Plant hire · 10-49 employees

  Ovenden Plant Hire provides reliable plant and machinery hire across the UK. From excavators and dump trucks to rollers and attachments, we offer flex

• O Overhall Contractors Ltd North Lincolnshire · Civil engineering · 50-249 employees

  Overhall Contractors is a family-run civil engineering and groundwork contractor based in North Lincolnshire, with over 30 years of experience deliver

• O Ovi Construction Ltd Romford · Civil engineering · 1-9 employees

  OVI Construction Company Limited is a Nigerian-based multidisciplinary construction and engineering company delivering end-to-end infrastructure solut

• O Owen Pell Ltd Hereford · Main contractor · 10-49 employees

  Owen Pell is a construction and civil engineering contractor established in 1976, serving Herefordshire and surrounding counties. They offer a wide ra