A company is a form of business organization. It is an association or collection of individual real persons and/or other companies, who each provide some form of capital. This group has a common purpose or focus and an aim of gaining profits. This collection, group or association of persons can be made to exist in law and then a company is itself considered a "legal person". The name company arose because, at least originally, it represented or was owned by more than one real or legal person.
In the United States, a company is a corporation—or, less commonly, an association, partnership, or union—to carry out an enterprise. Generally, a company may be a "corporation, partnership, association, joint-stock company, trust, fund, or organized group of persons, whether incorporated or not, and (in an official capacity) any receiver, trustee in bankruptcy, or similar official, or liquidating agent, for any of the foregoing."
In English law and in the Commonwealth realms a company is a body corporate or corporation company registered under the Companies Acts or similar legislation. It does not include a partnership or any other unincorporated group of persons, although such an entity may be loosely described as a company.