Santa Cruz Community Foundation is an affiliate foundation. It's led by a Board of Directors made up of business, civic and community leaders in Santa Cruz County. The foundation provides grantmaking and works to improve the quality of life in the border region, including cities along the U.S./Mexico border, Nogales, Tubac, Rio Rico and Patagonia.

Oro Valley Community Foundation is a partner foundation.  As a 501c3, it's led by its own Board of Directors. The foundation works with donors, makes grants, and awards scholarships to meet the needs of citizens and nonprofit organizations in the Oro Valley area.

Stone Canyon Community Foundation is a donor advised fund supported by Stone Canyon and Stone Canyon Club. The foundation assists nonprofit organizations who work with young people, with special emphasis on early childhood education, successful high school graduation, and development of life skills.