There have been 15 companies form in the week from 30-08-2025 to 05-09-2025 within the W1K postcode district (Mayfair (north), Grosvenor Square in Westminster). 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 by day or by month in Westminster. 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. However you can also use the wizard below to carry out live searches, free of charge,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.