A body corporate created by royal charter or by a specific Act of Parliament or registered with the Registrar of Companies under the Companies Act 1985.
Certain organizations must be registered under the Building Society Acts 1874,1894, and 1939, and the Industrial and Provident Society Acts 1893-5 and 1913. These are not strictly companies but are often called such. There are also cost book mining companies and there used to be unincorporated companies.In the case of companies dealt with under thc 1985 Companies Act, liability of members may be limited by shares, or by guarantee, or may be unlimited. Companies may also be public companies or private companies. In partnerships the word company is often used to describe thc firm, e.g. Bloggs & Company. Where thc word ‘Limited’ does not appear, thc organization is not a company in thc legal sense. The phrase ‘one-man company’ is often used to describe a small private company, where control is effectively in thc hands of one person. By law there must always be more than one member.
Reference: The Penguin Business Dictionary, 3rd edt.