How Many Construction Companies Are There in the UK in 2026?
6 April 2026 · Data sourced from Companies House
According to our analysis of the latest Companies House bulk data, there are 224,969 active construction companies registered in the United Kingdom as of March 2026. This makes construction one of the largest sectors by company count in the UK.
Construction Companies by Region
London dominates with over 72,800 active construction companies, followed by the South East with nearly 28,000. Here is the full regional breakdown:
You can browse the full company lists for each region on our construction industry page, with filters for company age, size, overdue accounts, and more.
Company Age Profile
The construction sector has a high proportion of young companies. A significant number are startups (0–2 years old), reflecting the low barriers to entry in the trades. However, there are also thousands of established firms with 20+ years of trading history — particularly in specialist areas like civil engineering and building services.
Compliance and Risk Indicators
Our data includes compliance flags sourced directly from Companies House. Across the construction sector, a notable percentage of companies have overdue accounts or overdue confirmation statements. These flags can be useful indicators for credit risk assessment, due diligence, and supply chain vetting.
You can filter for companies with overdue accounts, outstanding charges, or dormant status on any of our construction browse pages.
Ownership and Control
Using Persons with Significant Control (PSC) data from Companies House, we can identify who owns and controls construction companies across the UK. The vast majority are owned by British nationals, but there is meaningful foreign ownership — particularly in London, where companies with PSCs resident overseas are more common.
Our browse pages include filters for foreign-controlled companies and corporate-owned entities, making it easy to identify ownership structures at a glance.
Browse Construction Companies
All data is free to browse and requires no registration. Click any region below to explore construction companies with full filtering:
About this data: All figures are sourced from the Companies House bulk data product, published under the Open Government Licence v3.0. Data reflects the latest available snapshot as of March 2026. Only companies with an "Active" status are included.