- Abell Foundation
- Annie E. Casey Foundation
- Berger Singerman
- Bloomberg American Health Initiative
- Bloomberg American Health Initiative of the Johns Hopkins Bloomberg School of Public Health
- Brain and Behavior Research Foundation
- Broad Foundation
- California Community Foundation
- California Wellness Foundation
- David and Ellen Berman
- David and Lucile Packard Foundation
- David Bohnett Foundation
- Elizabeth K. Dollard Trust
- Everytown For Gun Safety Support Fund
