Newly Formed Companies in the Harrow Area
The HA postcode area covers Harrow and a wider collection of local districts, each adding something different to the area's geography. Its character can be seen through places including Harrow, North Harrow, Edgware, Ruislip, Harrow Weald, Kenton and Stanmore.
The HA area is associated with Harrow and north-west London, including districts such as Wembley, Pinner, Stanmore, Wealdstone, Kenton and surrounding suburbs. Its character is shaped by Metropolitan line connections, suburban high streets, schools, parks, diverse communities and links into both central London and Hertfordshire.
Looking across the HA area, HA1, HA8, HA4, HA3, HA7 are among the districts most visible in company-registration records.
For anyone reviewing recently formed companies by postcode area, HA provides a useful geographic grouping. As of June 2026, HA ranks 10th out of 128 postcode areas by company count, with 90,858 companies associated with addresses in the area.
Because HA ranks so highly, the mix of places within it is especially relevant to anyone researching newly formed companies by location.
When a company is registered, its registered office address is the publicly visible location of the company and the company has to legally be able to receive post at this address. Over 2,000 companies every day (sometimes over 3000) get formed. These are in England, Scotland, Wales and Northern Ireland.
We analyse whether a registered office has a valid UK postcode that we can get grid co-ordinates for distance calculations and make sure the company has not closed down since it formed. You can then contact these people in the Harrow (HA) area, who may be interested in receiving your marketing message offering your services under the legitimate interest rules of GDPR (assuming you are marketing to companies who you feel have a potential interest in your services, either geographically or by category). Marketing is by post because it is a brand new company that won't have a business telephone number or business email address (and even if they have, its not part of the data collected and made available by Companies House)
Harrow is made up of the following towns and villages
Postcode Districts in Harrow (HA)
| District | Description | Region |
|---|---|---|
| HA0 | Alperton, Sudbury, Sudbury Hill, Wembley Central, North Wembley | Harrow |
| HA1 | Harrow, North Harrow, Northwick Park | Harrow |
| HA2 | North Harrow, South Harrow | Harrow |
| HA3 | Harrow Weald, Kenton, Wealdstone | Harrow |
| HA4 | Ruislip | Hillingdon |
| HA5 | Pinner, Eastcote, Hatch End, Carpenders Park | Harrow |
| HA6 | Northwood, Moor Park, Sandy Lodge | Hillingdon |
| HA7 | Stanmore | Harrow |
| HA8 | Edgware | Harrow |
| HA9 | Wembley, Wembley Park, Wembley Central, Preston, Tokyngton | Brent |