Development of building projects

On the register

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

• Active 84%
• Proposal to strike off 13%
• 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 11%
• 1–3 years 17%
• 3–5 years 12%
• 5–10 years 27%
• 10–20 years 19%
• 20 years or more 15%

Where they're registered

Active companies by postcode area of their registered office.

• West London (W) 3,990
• North London (N) 3,120
• East Central London (EC) 3,110
• Birmingham (B) 2,700
• West Central London (WC) 2,500
• East London (E) 2,390
• Belfast (BT) 2,380
• Manchester (M) 2,290
• North West London (NW) 2,270
• South West London (SW) 2,110

Recently registered companies

Active companies recently registered under SIC code 41100.

Related

• Part of the Construction industry group.
• Other construction SIC codes:
  • 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)
• All SIC codes
• SIC codes explained