Top Construction Companies in the UK
Construction and property is one of the UK's largest economic sectors, employing millions of people and contributing significantly to GDP. Here are the top construction companies in the UK for 2026, ranked by number of employees.
| # | Company | Location | Employees | Revenue |
|---|---|---|---|---|
| 1 | BALFOUR BEATTY PLC | London | 26,000 | £10.0B |
| UK's largest construction and infrastructure group, delivering major projects including railways, highways, power systems, and urban regeneration. Listed on the London Stock Exchange and operating in the UK, US, and Hong Kong. | ||||
| 2 | MORGAN SINDALL GROUP PLC | London | 7,500 | £4.5B |
| FTSE 250 construction and regeneration group specialising in building, infrastructure, fit-out, property services, and urban regeneration. Known for sustainable construction practices and partnership working. | ||||
| 3 | KIER GROUP PLC | Solihull | 11,000 | £3.8B |
| Major construction and infrastructure services company delivering buildings, highways, utilities, and rail projects. Kier is one of the UK's largest public-sector construction contractors. | ||||
| 4 | TAYLOR WIMPEY UK LIMITED | High Wycombe | 5,500 | £3.5B |
| One of the UK's largest residential housebuilders, constructing homes ranging from affordable housing to luxury developments. Taylor Wimpey builds around 14,000 new homes per year across the UK. | ||||
| 5 | PERSIMMON HOMES LIMITED | York | 4,500 | £3.2B |
| UK's largest housebuilder by volume, delivering over 14,000 new homes annually across the country. Persimmon operates through regional brands including Charles Church and Westbury. | ||||
| 6 | THE BERKELEY GROUP HOLDINGS PLC | Cobham | 2,500 | £2.8B |
| Premium housebuilder and urban regeneration specialist focused on London and the South East. Berkeley Group is known for complex brownfield regeneration projects and mixed-use developments. | ||||
| 7 | VISTRY GROUP PLC | West Malling | 5,000 | £4.0B |
| FTSE 250 housebuilder and partnerships specialist created from the merger of Bovis Homes and Countryside Properties. Vistry delivers affordable and mixed-tenure housing developments. | ||||
| 8 | BELLWAY P L C | Newcastle Upon Tyne | 3,000 | £3.1B |
| Major UK housebuilder delivering over 10,000 new homes annually. Listed on the London Stock Exchange, Bellway operates across 22 divisions and focuses on quality housing at accessible price points. | ||||
| 9 | WATES GROUP LIMITED | Leatherhead | 4,000 | £1.8B |
| Family-owned construction, development, and property services group. Wates delivers residential, commercial, defence, and public-sector construction projects, and is one of the UK's largest privately-owned contractors. | ||||
| 10 | LAING O'ROURKE PLC. | Dartford | 12,000 | £3.5B |
| International engineering and construction company known for innovation in off-site manufacturing and digital engineering. Laing O'Rourke delivers major infrastructure projects including Crossrail and HS2. | ||||
| 11 | MACE LIMITED | London | 8,000 | £2.5B |
| Global consultancy and construction company delivering iconic projects including The Shard, Battersea Power Station, and the London 2012 Olympic Park. Mace operates across over 40 countries. | ||||
| 12 | SKANSKA UK PLC | Rickmansworth | 3,500 | £1.5B |
| UK arm of the Swedish construction giant delivering buildings, infrastructure, and public-private partnership projects. Skanska is known for its focus on sustainability and green construction practices. | ||||
| 13 | GALLIFORD TRY LIMITED | Uxbridge | 3,000 | £1.8B |
| Construction and infrastructure company specialising in building, civil engineering, and highway projects. Galliford Try is a leading contractor for education, healthcare, and defence sector buildings. | ||||
| 14 | WILLMOTT DIXON LIMITED | Letchworth | 3,000 | £1.6B |
| Privately-owned construction and interior fit-out company delivering schools, hospitals, offices, and residential projects. Willmott Dixon is one of the UK's largest construction companies by value. | ||||
| 15 | BAM CONSTRUCTION LIMITED | Hemel Hempstead | 2,500 | £1.2B |
| UK subsidiary of Royal BAM Group delivering construction, civil engineering, and facilities management services. BAM specialises in education, healthcare, and commercial building projects. | ||||
| 16 | ISG CONSTRUCTION LIMITED | London | 2,500 | £2.0B |
| International construction services company specialising in fit-out, construction, and engineering services. ISG delivers complex projects across technology, banking, retail, and hospitality sectors. | ||||
| 17 | SKANSKA CONSTRUCTION UK LIMITED | Rickmansworth | 2,000 | £1.0B |
| Operating subsidiary of Skanska UK delivering major construction projects including schools, hospitals, commercial buildings, and infrastructure across England and Wales. | ||||
| 18 | GALLIFORD TRY CONSTRUCTION LIMITED | Uxbridge | 2,000 | £1.2B |
| Construction operating company within the Galliford Try group delivering building and infrastructure projects for public and private sector clients across the UK. | ||||
| 19 | WILLMOTT DIXON CONSTRUCTION LIMITED | Letchworth | 2,000 | £1.2B |
| Construction arm of Willmott Dixon focused on delivering new-build projects across education, healthcare, residential, and commercial sectors. Known for collaborative contracting approaches. | ||||
| 20 | KIER CONSTRUCTION LIMITED | Solihull | 3,000 | £1.5B |
| Building division of Kier Group delivering education, healthcare, commercial, and residential construction projects for public-sector clients across the UK. | ||||
| 21 | MORGAN SINDALL CONSTRUCTION & INFRASTRUCTURE LTD | London | 4,000 | £2.5B |
| Operating subsidiary delivering construction and infrastructure projects including schools, hospitals, highways, rail, and energy infrastructure across England and Wales. | ||||
| 22 | BALFOUR BEATTY GROUP LIMITED | London | 15,000 | £6.0B |
| Operating group within Balfour Beatty managing construction, support services, and infrastructure investments. Balfour Beatty Group delivers some of the UK's most complex engineering projects. | ||||
| 23 | BALFOUR BEATTY CE LIMITED | London | 5,000 | £2.0B |
| Civil engineering division of Balfour Beatty delivering major infrastructure projects including highways, bridges, tunnels, and rail systems. A key contractor on HS2 and major road programmes. | ||||
| 24 | GALLIFORD TRY HOLDINGS PLC | Uxbridge | 3,000 | £1.8B |
| Listed parent company of the Galliford Try group. The company was restructured in 2019 following the sale of its housebuilding division to focus on construction and infrastructure. | ||||
| 25 | MACE GROUP LIMITED | London | 8,000 | £2.5B |
| Parent group of Mace providing consultancy, construction, and programme management services. Mace Group manages the delivery of complex projects across sectors including aviation, commercial, and residential. | ||||
| 26 | WILLMOTT DIXON HOLDINGS LIMITED | Letchworth | 3,500 | £1.8B |
| Parent holding company of the Willmott Dixon group, a family-influenced business delivering construction, interiors, and facilities management services for over 170 years. | ||||
| 27 | WATES CONSTRUCTION LIMITED | Leatherhead | 2,000 | £1.0B |
| Construction arm of the Wates Group delivering new-build projects across residential, commercial, education, and defence sectors. Wates Construction is a principal contractor on major government frameworks. | ||||
| 28 | BAM CONSTRUCT & VENTURES UK LIMITED | Hemel Hempstead | 2,500 | £1.2B |
| Parent of BAM's UK construction and development activities. BAM Construct & Ventures develops and builds commercial property, public buildings, and infrastructure projects. | ||||
| 29 | BALFOUR BEATTY LIVING PLACES LIMITED | London | 3,000 | £800.0M |
| Highways and community services division of Balfour Beatty maintaining roads, street lighting, housing, and public spaces for local authorities across the UK. | ||||
| 30 | BALFOUR BEATTY CIVIL ENGINEERING LIMITED | London | 2,000 | £1.0B |
| Specialist civil engineering subsidiary delivering complex infrastructure projects including bridges, dams, marine structures, and ground engineering works. | ||||
The UK construction industry is a cornerstone of the national economy, encompassing residential and commercial building, civil engineering, infrastructure development, and property management. The sector accounts for a significant proportion of UK GDP and provides employment for a large workforce spanning skilled trades, engineering, architecture, and project management.
Major construction projects in the UK include large-scale infrastructure programmes such as HS2, Thames Tideway, and numerous renewable energy installations, as well as ongoing housebuilding to address the country's housing supply challenges. The sector is also adapting to new requirements around energy efficiency and sustainable building practices.
The construction industry in the UK faces several ongoing challenges including skills shortages, rising material costs, and the need to adopt modern methods of construction and digital technologies. Despite these challenges, the sector continues to grow and evolve, with increasing use of building information modelling, offsite manufacturing, and sustainable construction techniques.
This list ranks the largest UK construction and property companies by employee headcount. Each company listing links to a detailed profile including financial accounts, director information, and a complete record of Companies House filings.
Frequently Asked Questions
What types of companies are included in this list?
This list includes companies involved in property development, residential and commercial construction, civil engineering, infrastructure projects, and construction services. It covers the full breadth of the property, infrastructure, and construction sector.
How large is the UK construction industry?
The UK construction industry contributes over £100 billion to the economy annually and employs a workforce of over two million people. It is one of the largest sectors in the UK economy.
Why are some construction companies much larger than others?
The construction industry has a wide range of company sizes, from major multinational contractors working on billion-pound projects to regional builders and specialist subcontractors. The largest companies typically operate across multiple segments and geographies.
Can I view the financial accounts of these companies?
Yes. Click on any company name to access their full CompanyTrack profile, which includes financial data from their latest filed accounts, profit and loss figures where available, balance sheet data, and a history of filings.