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Top 10 Largest Companies In The Construction Industry (UK - 2024) UPDATED
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Top 10 Largest Companies In The Construction Industry (UK - 2024) UPDATED

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Top 10 Largest Companies In The Construction Industry (UK - 2024) UPDATED

Have you ever wondered who are the largest companies in the construction industry? Who is making the highest turnover? This is an interesting insight into the highest revenue producing companies in the UK and who they are.

These businesses have reached their peak of success thanks to hard work, exceptional construction and design processes, strategic marketing and skilled and innovative staff teams. You can learn about scaling your business from a free business development call with Trade Coaches.

For inspiration, here are 10 of the largest construction companies in the UK:

1. Balfour Beatty

Balfour Beatty are the UK’s largest construction and infrastructure provider, operating principally in the UK, designing, upgrading, managing and maintaining critical national infrastructure with capabilities across electricity networks, rail and highways.

The company have 12,000 employees in the UK, they deliver sustainable solutions and strengthen communities, finance, develop, build, maintain and operate the increasingly complex and critical infrastructure that supports national economies and deliver projects at the heart of local communities.

2. Morgan Sindall Group

Morgan Sindall was founded in 1977 by John Morgan and Jack Lovel and is a leading Construction and Regeneration group comprising eight complementary subsidiary businesses.

 The group of specialist businesses, delivering construction and regeneration across the UK for the public, commercial and regulated sectors.

Morgan Sindall Group plc is a leading British Construction & Regeneration group, headquartered in London employing around 6,700 employees and operating in the public, regulated and private sectors

Some projects you might know of include Tideway Super Sewer, Werrington Grade Separation, M5 Oldbury Viaduct and recently White Chapel Station Expansion in London. 

3. Kier Group Plc

From modern and purpose-built educational and healthcare projects to delivering and maintaining roads, rail, water, energy and telecommunications networks.

Kier Group plc is a British construction, services and property group active in building and civil engineering, support services, and the Private Finance Initiative. Founded in 1928 in Stoke-on-Trent it initially specialised in concrete engineering before expanding into general contracting and house-building.

4. Keller Group

Keller Group plc is a geotechnical engineering company. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. The company is the world's largest geotechnical specialist contractor.

Whatever the size of the project, Keller has the expertise and experience to respond quickly with the optimum solution, execute safely and see the project through to a successful conclusion.

Keller groups techniques solve a wide range of challenges across the entire construction sector – from industrial, commercial and housing projects to infrastructure construction for dams, tunnels, transportation and water treatment, as well as projects to address environmental challenges.

5. Amey UK

Amey UK are a leading provider of full life-cycle engineering, operations and decarbonisation solutions, for transport infrastructure and complex facilities.

There purpose is to deliver sustainable infrastructure solutions that enhance life and protect our shared future.

Amey combine exceptional expertise in Consulting & Design, Advisory & Analytics, Transport Infrastructure and Complex Facilities to design, manage, and maintain clients’ assets throughout their lifetime.

6. ISG Plc

ISG was founded in 1994 by Ivan Millar and is a leading specialist in the construction industry offering engineering, fit out and construction services in 5 specific sections - Science & Health, Technology, Education & Public Sector, Offices and Hospitality & Leisure.

ISG Ltd (formerly Interior Services Group) is a privately-owned, London, UK-based construction company.

Some projects you might know include the new Cardiff Transport , Britishvolt Gigafactory, Lord’s cricket ground, Waterloo International redevelopment, and Wigan Town Hall.

7. Tarmac Trading

Tarmac Trading employ around 7,000 people across a network of more than 350 sites across the UK.

Tarmac, a CRH company, is the UK’s leading sustainable building materials and construction solutions business. Tarmac combines the knowledge and expertise of two of the construction industry’s most iconic brands: Tarmac, the pioneers of the modern asphalt road 120 years ago, and Blue Circle, the company that patented Portland Cement.   

The companies solutions span aggregates, asphalt, cement, lime, ready-mix concrete, offsite manufacture, road contracting, highways maintenance and infrastructure services, building products and recycling services.

8. Mace

The company was founded by a group of construction and architecture professionals, led by Ian Macpherson, who left  in 1990 hoping to bring in some new, more collaborative ways of working in the traditionally combative construction industry.

Mace Group Ltd, commonly known as Mace, is a global consultancy and construction firm headquartered in London, United Kingdom, employing nearly 7,300 people, across five continents with a turnover of around £2 billion.

Mace are global experts in shaping the built environment. From development and consultancy, to construction and operations, we connect expertise across the entire property lifecycle to help our clients, people, communities and society achieve more than they believe is possible.

9. M Group Services

M Group are the leading essential infrastructure services provider operating within water, energy, transport and telecommunication sectors across the UK & Ireland.

The group provide essential services to a vast array of clients across the four sectors we operate within, delivering a diverse range of services through technical expertise.

M Group operating businesses have a long history dating back to 1884, the below gives a summary of the sustainable growth achieved by M Group Services through acquisition of 16 businesses since 201

10. Laing O'Rourke

Laing O'Rourke is a multinational construction company headquartered in Dartford, England. It was founded in 1978 by Ray O'Rourke. It is the largest privately owned construction company in the United Kingdom.

Laing O’Rourke is an international engineering and construction company delivering state-of-the-art infrastructure and buildings projects for clients in the UK

They have worked on big projects such as Everton football stadium and Hinkley point.

Position Contractor Latest Margin Latest Turnover (£m)
1 Balfour Beatty 3.8% 7,629
2 Morgan Sindall Group 2.4% 3,612
3 Kier Group 0.5% 3,143
4 Keller Group 1.9% 2,994
5 Amey UK 3.5% 2,328
6 ISG 0.5% 2,185
7 Tarmac Trading 12.3% 2,136
8 Mace 1.9% 1,936
9 M Group Services 0.1% 1,864
10 Laing O'Rourke 0.9% 1,807

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Top 10 Largest Companies In The Construction Industry (UK - 2024) UPDATED

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