Security company companies across the UK

13,277 security company companies are on the UK register, and 3,859 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £11,382 in cash and owed £11,707 at year end.

Compared with the official category “Private security activities” (SIC 80100). Only places with enough companies and filed accounts to quote local figures are listed.

Choose a place

• London2,839 companies
• Birmingham544 companies
• Ilford472 companies
• Manchester441 companies
• Romford355 companies
• Cardiff276 companies
• Harrow208 companies
• Liverpool167 companies
• Chelmsford153 companies
• Dartford147 companies
• Guildford134 companies
• Northampton132 companies
• Brighton114 companies