Discipline: Economics
Non-profit organization posits the existence of organizations pursuing different objectives (and working under different constraints) to the functional profit-making model.
Usually supported by private/public grants or donations, such organizations are implicity or explicitly non-profit making.
Examples include health foundations, charities, and clubs.
Source:
R S Gassier, The Economics of Non-profit Enterprise: A Study in Applied Economic Theory (New York and London, 1986)