Construction companies in the UK

On the register

Share of these companies on the live register, by status.

• Active 81%
• Proposal to strike off 16%
• In insolvency or administration 3%

New registrations

Companies registered each month, October 2025 – September 2026, that are still on the register. See registrations by month across all companies.

Company age

How long the active companies have been registered.

• Under 1 year 14%
• 1–3 years 18%
• 3–5 years 13%
• 5–10 years 23%
• 10–20 years 20%
• 20 years or more 12%

SIC codes in this industry

Active companies under each SIC code. Codes with fewer than 250 active companies don't have a page of their own.

• 41100 – Development of building projects 109,000
• 41202 – Construction of domestic buildings 92,800
• 43999 – Other specialised construction activities n.e.c. 61,900
• 43210 – Electrical installation 56,100
• 43390 – Other building completion and finishing 54,900
• 43220 – Plumbing, heat and air-conditioning installation 49,800
• 41201 – Construction of commercial buildings 39,900
• 43290 – Other construction installation 37,200
• 43320 – Joinery installation 22,400
• 42990 – Construction of other civil engineering projects n.e.c. 17,800
• 43910 – Roofing activities 17,300
• 43341 – Painting 16,300
• 43330 – Floor and wall covering 11,500
• 43310 – Plastering 8,920
• 43342 – Glazing 7,540
• 43991 – Scaffold erection 6,610
• 43120 – Site preparation 5,140
• 42220 – Construction of utility projects for electricity and telecommunications 4,740
• 42110 – Construction of roads and motorways 4,400
• 42120 – Construction of railways and underground railways 2,580
• 43110 – Demolition 2,050
• 42910 – Construction of water projects 1,480
• 42210 – Construction of utility projects for fluids 1,110
• 43130 – Test drilling and boring 582
• 42130 – Construction of bridges and tunnels 487

Where they're registered

Active companies by postcode area of their registered office.

• Birmingham (B) 13,700
• North London (N) 11,300
• East London (E) 11,300
• Belfast (BT) 10,700
• West London (W) 9,270
• Romford (RM) 8,960
• Manchester (M) 8,880
• Harrow (HA) 8,830
• East Central London (EC) 8,780
• Chelmsford (CM) 8,520

Recently registered companies

Active construction companies registered recently.

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