Company name and trade mark checker
Check that the company name or trade mark you are thinking of using for your business is not already registered or similar to one already existing.
You should look at your prospective company names and trade marks at the same time if you want to try to secure both for your business, and to check that you won't be infringing someone else's trade mark.
The Companies House company name availability checker search facility will provide you with an indication of the availability of your proposed company name. The service is free of charge which enables you to search for information on more than two million companies.