Companies in Harrow
Harrow is the 13th biggest place on the UK company register, with 31,492 live companies, or 0.6% of the UK total. 3,698 of those were formed in 2025. 2,219 (7.0%) have a proposal to strike off on file, close to the UK figure of 7.3%. Compared with the UK as a whole, Harrow stands out for sea and coastal passenger water transport: 50 companies, 9.0 times the national share.
What Harrow has more of than the rest of the UK
Each trade's share of Harrow companies, compared with its share across the UK.
Biggest trades in Harrow
Live Harrow companies, by year formed
Only companies still live are counted, so older years look smaller. 2026 stops on 1 November 2026.
See every year as a table
| Year | Live companies |
|---|---|
| 2012 | 673 |
| 2013 | 831 |
| 2014 | 961 |
| 2015 | 1,045 |
| 2016 | 1,142 |
| 2017 | 1,325 |
| 2018 | 1,627 |
| 2019 | 1,753 |
| 2020 | 1,760 |
| 2021 | 1,734 |
| 2022 | 1,906 |
| 2023 | 2,106 |
| 2024 | 2,645 |
| 2025 | 3,698 |
| 2026 | 3,405 |
Oldest active companies in Harrow
- British Institute of Verbatim ReportersFormed 1887
- Shepherd SmithFormed 1905
- Mitchell Cotts East and Central AfricaFormed 1906
- South Hill Estates,harrowFormed 1910
- Strathearn PublishingFormed 1912
Nearest in size
Town means the post town of the registered address, which isn't always where a company trades. Many companies use an accountant's or formation agent's address. Figures come from Companies House on 1 November 2026.