Do this on Companies House. Simply; Pick a Company Name, Fill in the details, Select a SIC code. (a SIC code describes the type of economic activity in which the company is engaged). Companies across the entire UK - England, Scotland, Wales, and Northern Ireland, use the same UK Standard Industrial Classification (UKSIC) system Here’s a link for you to find what SIC to use; https://resources.companieshouse.gov.uk/sic/ You can pay an accountant to do this, or, Do it yourself online for approx £100* (edit thanks Mirka Fris)