28,703 active companies are currently registered in Harrow, a major UK business hub. Out of 34,602 companies ever registered here, 3,369 are no longer active — a 83% survival rate. The area has seen significant recent growth, with 54.4% of active businesses incorporated since 2020. Over half (67%) 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 2,518 companies. The area hosts 124 large enterprises, 175 small firms. Harrow is home to 507 FCA-regulated firms and 183 registered charities. Companies here hold 316 government contracts worth £529.0M in total. The average company age is 8.0 years. The earliest company registration in Harrow dates back to 1887.
Source: Companies House register via UVAGATRON, October 2026
Harrow is a growth hotspot — over half of its active companies were formed since 2020.
The average active company in Harrow is 8 years old. There are 507 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 183 registered charities operate locally.
Companies in Harrow have been awarded 316 government contracts with a combined value of £529.0M. See the Top Government Contractors report.
There are 28,703 active companies registered in Harrow, out of 34,602 total. 3,369 (10%) are no longer active.
The top industries in Harrow include Buying and selling of own real estate (2,518 companies), Other letting and operating of own or leased real estate (2,116 companies), Management consultancy activities other than financial management (1,188 companies).
54.4% of currently active companies in Harrow were incorporated since 2020, indicating strong recent growth.
Our database contains 251,023 data signals across 12 categories for active companies in Harrow. The largest category is Governance with 119,257 signals from 6 sources.
The oldest company registration in Harrow dates back to 1887, spanning over 139 years of business history.