NMAG's membership ranges from some of the largest foundations in New Mexico to small, family staffed and special interest foundations; corporate contributions programs; public agencies which award grants; community foundations; and publicly supported foundations. While members' grantmaking budgets, styles and program interests vary widely, all have in common a concern for making their involvement in philanthropy as meaningful and effective as it can be. Executives, trustees, and staff members from both private and publicly supported foundations participate in NMAG meetings and special events. They represent diverse grantmaking interests including: the environment, education, health and human services, children and youth, the arts and humanities, economic development and international grantmaking.

NMAG Membership is open to philanthropic organizations based in or with giving programs in New Mexico. This includes private, family, corporate and community foundations; trust companies and other fiduciaries exercising trust grantmaking functions; individual donors who operate a grantmaking program in accordance with the practices of organized philanthropy; public sector agencies and publicly supported foundations for whom a primary purpose is grantmaking to multiple individuals or organizations. For more information about membership, please contact us at info@nmag.org.