The Field School is a 501(c)(3) Corporation governed by a Board of Trustees.  The Board consists of eighteen voting members elected to three-year terms and two ex officio non-voting members (the Head of School and the Field Parents Association President).  Membership includes parents of current and former students, alumni, and educational and community leaders.  Members and officers are nominated by the Board's Governance Committee and elected by vote of the Board.

The Board's primary responsibilities include establishing Field’s mission, providing fiduciary oversight, ensuring the long term health and sustainability of the school, and hiring the Head of School.

The Field School Board of Trustees meets five to six times per year including two annual retreats.