Tammy Tumbling

Tammy Tumbling is President of the Orange County Community Foundation (OCCF), with more than two decades of leadership experience in management, corporate citizenship, utility operations, and customer service. Tammy joined OCCF in 2019 as its inaugural Executive Vice President and Chief Operating Officer and now leads Vision 2030, the foundation’s five-year strategic plan.

Tammy oversees strategy and operations across the organization, including stewardship of nearly $1 billion in assets, and founded the African American Alliance Fund to support Black-led and Black-serving nonprofits in California, across the nation, and around the world.

Before OCCF, Tammy held leadership roles at Southern California Edison for over 21 years and spent nearly a decade in the nonprofit sector with The Music Center of Los Angeles and the United Way of Greater Los Angeles. Tammy holds a Master of Public Administration and a Bachelor of Science in Business Administration/Computer Information Systems from California State University, Dominguez Hills.