The non-financial corporations sector consists of institutional units, which are principally engaged in the production of market goods and non-financial services. Corporate producers are incorporated enterprises, co-operatives and other forms of business associations that are recognized as independent legal entities. The following institutional units are included: business partnerships between limited liability companies and/or other incorporated organizations; incorporated non-profit enterprises mainly engaged in the productive activities described above; quasi-corporations; and non-profit organizations and associations mainly serving business enterprises and entirely or mainly financed and controlled by business enterprises.