What is Companies House Authentication Code?
After a limited company is formed at Companies House in the UK, Companies House then issues the newly formed company a Company Authentication Code. Hence, every limited corporation has got this number, irrespective of whether it is dormant or trading.
Company Authentication Code is like a password or a unique identifier. It is issued to all limited companies in the UK. A Company Authentication Code usually contains six characters and is alphanumeric.
A Company Authentication Code is mandatory in case of a change of company ownership or a change of company directors. These changes are usually done by online filing at Companies House. The Company Authentication Code is used as a replacement for the physical signature of a director. Therefore, you could say that a Authentication Code is equivalent to a director’s signature. In other words, it is an electronic signature of a company’s director.
Source: https://datagardener.com/blogs/what-is-companies-house-authentication-code/
