Companies within Mayfair (north), Grosvenor Square

Newly Formed Companies in
Mayfair (north), Grosvenor Square
this week

There have been 10 companies formed in the week from 15-07-2026 to 22-07-2026 within the W1K postcode district (Mayfair (north), Grosvenor Square in West London). Usually over 2500 companies get formed every working day across the country. If you would prefer to analyse by region, rather than this postal district, you can check how many companies are formed in West London.

Centred on Mayfair (north) and Grosvenor Square, W1K is associated with Westminster and the communities, streets and local landmarks named in its coverage. Mayfair (north) and Grosvenor Square provide the main named reference points for W1K.

For W1K, the W postcode context matters: The W postcode gives the district a west London setting, with a mix of central commercial streets, residential squares, transport hubs and well-known cultural areas.

With 5,323 companies recorded as of June 2026, W1K sits in the upper reaches of the district ranking at 142nd out of 3,113. Company data for W1K brings together recent incorporations and newly formed companies associated with addresses in the district. The figures place W1K among the stronger-performing postcode districts in the UK for company registrations.

That local context helps make the company data easier to interpret, because W1K is tied to identifiable places rather than an abstract administrative code.

Below are just a small sample of the companies formed (with the numeric parts of the address redacted with an X and not showing the postcode, so we are not advertising peoples full addresses online) but allows you to see where some of the companies have been formed. Our newly formed companies wizard in our Dashboard allows you to filter by a range of options free of charge to get an idea of quantities, prior to deciding to purchase. We supply the full company details lodged when they filed their company when you have decided on your filter selection and choose to purchase.

Incorp Date	Categories	Location
22nd Jul	Other business support service activities n.e.c.	XXb Green Street London
21st Jul	Motion picture production activities	X-X Mount Street London
21st Jul	Retail sale via mail order houses or via Internet	XX Grosvenor St London
21st Jul	Not available	XX Upper Brook Street London
20th Jul	Financial intermediation not elsewhere classified Security and commodity contracts dealing activities	XX Grosvenor Street London
20th Jul	Development of building projects	XX Grosvenor Street London
17th Jul	Financial intermediation not elsewhere classified Other business support service activities n.e.c.	XX North Row London
17th Jul	Other business support service activities n.e.c.	XX South Audley Street London
17th Jul	Performing arts	Xnd Floor Connaught House, X-X Mount Street (Entrance Via Davies Street) London
16th Jul	Business and domestic software development Activities auxiliary to financial intermediation n.e.c. Financial management	Xnd Floor Connaught House, X-X Mount Street (Entrance Via Davies Street) London