A company registration number (CRN) is a unique combination of numbers, at times of numbers and letters. It is used to identify a company and verify its legal existence as an incorporated entity. A unique Company Registration Number is assigned as the company is registered on a certain register. The issuing entity differs from country to country. In Germany the public register and issuing entity is the Handelsregister. In the UK it is the Companies House.
The CRN can be found on the Certificate of Incorporation, on all official documentation received from the issuing entity or on the excerpts of the register. A company registration number is also referred to as ‘company number’.