William Ross Family Foundation

The Levecke Family Foundation

Irvine, CA

The Levecke Family Foundation funds social services, pediatric care and research, and support for people affected by hydrocephalus, with 2024 grants to organizations in California and Maryland. Its four grants ranged from $20,000 to $6,054,845, with a median of $700,000; it does not accept unsolicited requests and gives by invitation only.

Orange County Community Foundation

Irvine, CA

OCCF supports nonprofits across arts and culture, education, health, human services, the environment, and community development, primarily in Orange County but also beyond through its charitable funds. Its 2025 grants had a median amount of $25,000, though awards varied widely; the profile does not state whether it accepts unsolicited requests.

Edwards Lifesciences Foundation

Irvine, CA

Edwards Lifesciences Foundation funds charitable organizations improving access to care for underserved people with structural heart disease, as well as local health, education, economic opportunity, and basic-needs programs. Its 2024 grants ranged from $500 to $1,523,928, with a median of $7,500; it supports communities where Edwards employees live and work, with the largest share of recent funding going to California. It accepts requests through an annual online application cycle, usually opening in late spring.

Linda I Smith Foundation

Costa Mesa, CA

The Linda I Smith Foundation funds California nonprofits in areas including animal rescue, education, environmental programs, human services, and support for veterans and people with disabilities. Its 2025 grants ranged from $5,000 to $20,000, with a median of $5,500. It gives only to preselected organizations and does not accept unsolicited requests.

Ueberroth Family Foundation

Los Angeles, CA

The Ueberroth Family Foundation funds community organizations working in youth and education, human services, and health, primarily in Orange County and areas where its directors live. Its 2024 grants ranged from $1,000 to $120,000, with a median of $47,500. It accepts unsolicited letters of inquiry through an electronic annual application process; only invited organizations may submit a full proposal.

Ross Family Legacy Foundation Charitable Tr Dtd 01-16-09

Garden Groove, CA

C & R Newman Family Foundation

Encino, CA

The foundation funds organizations working in health, education, arts, youth programs, and human services, primarily in California. Its 2025 grants ranged from $500 to $1,061,000, with a median of $10,000. It gives only to preselected charities and does not accept unsolicited requests.

Silicon Valley Community Foundation

Mountain View, CA

Silicon Valley Community Foundation funds work in areas such as housing, economic security, education, health, the environment, arts and culture, and civic engagement, with Community Action Grants supporting local, community-led organizations in San Mateo and Santa Clara counties. Its 2024 grants had a median of $51,716, though amounts varied widely; applications depend on the program, and SVCF states that it does not accept unsolicited proposals for advised funds.

California Community Foundation

Los Angeles, CA

The California Community Foundation funds work in education, health, housing, immigration, and other community needs, primarily in Los Angeles County. Its 2025 grants had a median of $50,000, though amounts varied widely; it does not accept unsolicited funding requests.

The William & Flora Hewlett Foundation

Menlo Park, CA

The William & Flora Hewlett Foundation funds education, climate and conservation, the arts, gender equity, governance, democracy, and philanthropy, with work in the San Francisco Bay Area, the U.S. West, nationally, and internationally. Its 2024 grants had a median of $150,000, though awards ranged from $50 to more than $11 million; it often provides long-term general operating support. It generally does not accept unsolicited requests, except through invited open processes.

Marin Community Foundation

Novato, CA

Marin Community Foundation funds equity-focused work, including affordable housing, homelessness, community resilience and power, and arts; its Buck Family Fund supports organizations serving Marin County, including those based elsewhere. Its 2025 grants had a median of $25,000 and ranged from $5,050 to $10 million; the profile does not state whether it accepts unsolicited requests.

Direct Relief

Santa Barbara, CA

Direct Relief funds community health centers, free and charitable clinics, educational institutions, and other organizations addressing health inequities, and provides medical supplies for healthcare facilities serving underserved communities and people affected by emergencies. Its 2025 grants ranged from $5,500 to $4.34 million, with a median of $100,000, supporting work across the U.S. and more than 80 countries. The available information does not state whether it accepts unsolicited grant requests.