4,424 active companies are registered in Middlesex with Companies House. Out of 4,917 companies ever registered here, 24 are no longer active — a 90% survival rate. The most common industry sector is other letting and operating of own or leased real estate, with 300 companies. The area hosts 162 large enterprises, 44 small firms. Middlesex is home to 110 FCA-regulated firms and 91 registered charities. Companies here hold 121 government contracts worth £2.1B in total. The average company age is 22.6 years, suggesting a mature business environment. The earliest company registration in Middlesex dates back to 1895.
Source: Companies House register via UVAGATRON, June 2026
An established business centre with companies averaging 22.6 years of operation.
The average active company in Middlesex is 22.6 years old. There are 110 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 91 registered charities operate locally.
Companies in Middlesex have been awarded 121 government contracts with a combined value of £2087.0M. See the Top Government Contractors report.
There are 4,424 active companies registered in Middlesex, out of 4,917 total. 24 (0%) are no longer active.
The top industries in Middlesex include Other letting and operating of own or leased real estate (300 companies), Buying and selling of own real estate (256 companies), Other business support service activities n.e.c. (188 companies).
14% of currently active companies in Middlesex were incorporated since 2020, indicating steady recent growth.
Our database contains 36,214 data signals across 12 categories for active companies in Middlesex. The largest category is Governance with 15,682 signals from 5 sources.
The oldest company registration in Middlesex dates back to 1895, spanning over 131 years of business history.