What are the business activities that I am allowed to register with The Companies House?
A SIC code is a Standard Industrial Classification code. These are used by Companies House to classify the type of economic activity in which a company or other type of business is engaged. This information must be provided by all companies and LLPs at the time of company formation, regardless of whether the business will be active or dormant.
SIC codes must then be confirmed or updated on an annual basis when the company files its confirmation statement (formerly the annual return)