There are 823 active retail sale via mail order houses or via internet companies in Harrow, forming a notable cluster for this industry. Companies in this sector average just 3.2 years old — a fast-growing market. 83% of companies were formed in the 2020s, indicating rapid recent growth. Other leading locations for this sector include London (48,095) and Manchester (5,145).
There are 823 active retail sale via mail order houses or via internet companies (SIC 47910) currently registered in Harrow, according to Companies House data.
The average retail sale via mail order houses or via internet company in Harrow is 3.2 years old, based on incorporation dates recorded at Companies House.
Other leading locations for retail sale via mail order houses or via internet include: London (48,095), Manchester (5,145), Birmingham (3,796), Glasgow (1,868), Ilford (1,738).
Search, filter, and analyse 823 retail sale via mail order houses or via internet companies in Harrow with AI-powered risk intelligence.
Data sourced from Companies House, HM Land Registry, FCA Register, and 50+ government databases. Last updated: 2026-04-05.