in the service of associations

Non-profit organisation

The abbreviation for non-profit organisation is NPO or possibly NGO (non-governmental organisation). The NPO addresses a social concern and does not primarily pursue commercial goals. Many NPOs are organised as associations. In contrast to the private sector and the public sector, the NPO sector is also called the third sector.
It would be more correct to call NPOs “not-for-profit organisations”, since a NPO does not pursue any profit. Surpluses are allowed but will not be distributed to members or the management.