Co-operative company -- An organization owned by its members. Examples are agriculture cooperatives that assist farmers in selling their products more efficiently and apartment buildings owned by the residents who have full control of the property.
Public Limited Company; Private Limited Company -- In the United Kingdom there are two types of limited companies: (a) a private limited company in which the public cannot be invited to subscribe to any share issue and (b) a public limited company (plc) which can raise funds through share issues. Before a limited company can "go public," it must have a minimum share capital. A private limited company requires no minimum share capital.