Top Construction Companies In The UK

The construction industry in the UK is one of the largest in the world. Annually it grosses millions of pounds and employs thousands directly and indirectly. Some construction companies in the UK are international brands. This article sheds light on the top construction companies in the UK.

Balfour Beatty Plc

This construction company was established by George Balfour and Andrew Beatty in 1909 and is one of the world’s leading international infrastructure groups. It has over 25,000 direct employees and operates mainly in the UK, Ireland and North America.

Some of the company’s notable projects include Thames Tideway Tunnel, HS2, Manchester Engineering Campus Development (MECD), and Whitechapel & Woolwich Station.

Morgan Sindall Group Plc

Founded in 1977 by John Morgan and Jack Lovel, this company is a leading construction group with eight complimentary subsidiaries. The group specialises in the construction of affordable housing with a special interest in urban regeneration, infrastructure and construction investments.

Some of their notable projects include Tideway Super Sewer, Werrington Grade Separation, M5 Oldbury Viaduct and so on.

Interserve Plc

Interserve is the leading UK building, infrastructure, engineering and fit-out company. It employs over 60,000 people and operates over 200 offices in major cities across the globe.

Keller Group Plc

This is a ground engineering specialist company that provides support for mitigating construction challenges in industrial, commercial and housing projects, dam and tunnel construction tunnels, transportation and water treatment, and many more.

Some of its notable projects include Crossrail C310, London Power Tunnels, and South Cliff Stabilisation Scheme in Scarborough.


ISG was founded in 1994 by Ivan Millar and is a leading specialist in the provision of construction services to the science, health, technology, education, public sector, and hospitality and leisure sectors of the economy.

Some notable projects they have handled in the past include Aldwych Quarter in London, Network Rail offices in London, and Allied World offices in London.

The construction industry in the UK contributes substantially to the UK GDP, with some of these companies listed above involved in the construction of infrastructure worldwide. Contact us for more information.