29,023 active companies are currently registered in Harrow, a major UK business hub. Out of 32,179 companies ever registered here, 37 are no longer active — a 90% survival rate. The area has seen significant recent growth, with 54.3% of active businesses incorporated since 2020. Over half (59%) of active companies were formed since 2020, making this one of the UK's fastest-growing business locations. The most common industry sector is buying and selling of own real estate, with 2,460 companies. The area hosts 117 large enterprises, 172 small firms. Harrow is home to 507 FCA-regulated firms and 189 registered charities. Companies here hold 252 government contracts worth £571.9M in total. The average company age is 7.8 years. The earliest company registration in Harrow dates back to 1887.
Source: Companies House register via UVAGATRON, June 2026
Harrow is a growth hotspot — over half of its active companies were formed since 2020.
The average active company in Harrow is 7.8 years old. There are 507 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 189 registered charities operate locally.
Companies in Harrow have been awarded 252 government contracts with a combined value of £571.9M. See the Top Government Contractors report.
There are 29,023 active companies registered in Harrow, out of 32,179 total. 37 (0%) are no longer active.
The top industries in Harrow include Buying and selling of own real estate (2,460 companies), Other letting and operating of own or leased real estate (2,051 companies), Management consultancy activities other than financial management (1,220 companies).
54.3% of currently active companies in Harrow were incorporated since 2020, indicating strong recent growth.
Our database contains 184,354 data signals across 12 categories for active companies in Harrow. The largest category is Governance with 90,800 signals from 6 sources.
The oldest company registration in Harrow dates back to 1887, spanning over 139 years of business history.