In relation to public services, the voluntary sector is the realm of social activity undertaken by non-governmental, not for profitorganizations.[1] This sector is also called the third sector (in contrast to the public sector and the private sector), community sector, and nonprofit sector.[2] "Civic sector" or "social sector"[3] are other terms used for the sector, emphasizing its relationship to civil society. Voluntary sector activities are important in many areas of life, including social care, child care, animal welfare, sport and environmental protection.
^Potůček, Martin (1999) Not Only the Market: The Role of the Market, Government, and the Civic Sector. Central European University Press. p. 34.