# The biggest construction companies in London

The construction companies registered in London with the highest turnover in their latest filed accounts, ranked, with profit and growth.

Morgan Sindall Group is the biggest company among the construction companies registered in London by turnover, with £5.02bn in its latest filed accounts. Galliford Try Holdings and Costain Group follow. Together the 10 companies below turned over £10.1bn in their latest filed years.

| Rank | Company | Town | Turnover | Year |
| ---: | --- | --- | ---: | --- |
| 1 | [Morgan Sindall Group](https://firmfacts.co/company/morgan-sindall-group-00521970) | London | £5.02bn | FY to Dec 2025 |
| 2 | [Galliford Try Holdings](https://firmfacts.co/company/galliford-try-holdings-12216008) | Uxbridge | £1.93bn | FY to Jun 2026 |
| 3 | [Costain Group](https://firmfacts.co/company/costain-group-01393773) | London | £1.05bn | FY to Dec 2025 |
| 4 | [McAleer & Rushe Contracts UK](https://firmfacts.co/company/mcaleer-rushe-contracts-uk-07512356) | London | £628m | FY to Dec 2025 |
| 5 | [British Land](https://firmfacts.co/company/british-land-company-public-limited-companythe-00621920) | London | £523m | FY to Mar 2026 |
| 6 | [Danny Sullivan & Sons](https://firmfacts.co/company/danny-sullivan-sons-02670127) | London | £241m | FY to Dec 2024 |
| 7 | [Amey Rail](https://firmfacts.co/company/amey-rail-02995531) | London | £230m | FY to Dec 2025 |
| 8 | [Hammerson](https://firmfacts.co/company/hammerson-00360632) | London | £211m | FY to Dec 2025 |
| 9 | [Parkeray Interiors](https://firmfacts.co/company/parkeray-interiors-03493453) | London | £168m | FY to Dec 2025 |
| 10 | [Metka - Egn](https://firmfacts.co/company/metka-egn-09627590) | London | £150m | FY to Dec 2024 |

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Updated 2026-10-27 from the latest filed accounts at Companies House (Open Government Licence v3.0). Page: https://firmfacts.co/blog/biggest-construction-companies-in-london