Organizations which contribute in varying degrees to a community. Community organizations may be non-profit, private-sector, or private for-profit organizations. They may have a broad constituency, such as a neighborhood council, or a more targeted constituency, such as a tenant's association. Organizations which contribute in varying degrees to a community. Community organizations may be non-profit, private-sector, or private for-profit organizations. They may have a broad constituency, such as a neighborhood council, or a more targeted constituency, such as a tenant's association.