The St. Mark’s Episcopal Church Foundation, Inc., was incorporated in 1979 for the purpose of holding property, borrowing money for the purchase and/or improvement of property, and holding, investing and administering restricted and general endowment funds of the church. The trustees of the Foundation oversee various building and renovation projects and endowment funds. The Foundation accepts, holds and manages bequests and gifts of insurance and property.

Not less than fourteen and not more than twenty-five trustees, nominated by the rector and confirmed by the Vestry and Foundation, serve staggered three year terms. Officers include a chairman/president, treasurer and executive secretary. Serving as ex-officio members are the senior warden, junior warden and the Chair of the School Board of Trustees.