Martfam Foundation

Caprock Partners Giving Foundation

Newport Beach, CA

The foundation supports charities serving young adults and families, with giving that spans local and global communities and prioritizes areas where CapRock Partners invests. In 2024, its 25 grants ranged from $650 to $175,000, with a median of about $42,000. It gives only to preselected organizations and does not accept unsolicited funding requests.

Optivest Foundation

Dana Point, CA

Optivest Foundation funds Christian ministries and causes, including churches, Christian education, missions, medical assistance, and international aid, with recent grants going to organizations in California, Arizona, Georgia, and Florida as well as overseas projects. In 2025, grants ranged from $500 to $13,000, with a median of $3,500. It does not accept unsolicited requests and gives only to preselected charitable organizations.

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.

Curci Fund

Newport Beach, CA

The Curci Fund primarily supports basic and applied research in neuroscience, regenerative medicine, cell biology, cancer, and nanoscience, alongside grants to charitable organizations. Its 2024 grants ranged from $1,000 to $250,000, with a median of $10,000; most funding went to California recipients. It does not accept unsolicited requests, and its research programs use nominee-based processes.

Henry L Guenther Foundation

Seal Beach, CA

The Henry L. Guenther Foundation funds charitable services that improve human welfare, including medical care, youth opportunities, education, housing, and humanitarian projects. Its 2024 grants ranged from $5,000 to $500,000, with a median of $25,000, and primarily benefit California residents, especially in Southern California. It accepts online applications from qualified charitable organizations serving Californians; individuals cannot apply.

Ima Foundation

Wichita, KS

Prewoznik Foundation

Santa Monica, CA

Sisters of St Joseph Healthcare Foundation

Orange, CA

The Sisters of St Joseph funds organizations addressing the needs of working and indigent people, including work on housing, family violence, community services, and at-risk youth. Its focus is Southern California, the San Francisco Bay Area, and Humboldt County; 2025 grants ranged from $10,000 to $100,000, with a median of $40,000. The filing does not state whether it accepts unsolicited requests.

The Loftus Family Foundation

Wilmington, DE

The Loftus Family Foundation funds churches, performing arts and music, schools, children’s health, and youth programs, with nearly all 2024 grants going to organizations in California and a small share to Texas. Its 2024 grants ranged from $500 to $75,000, with a median of $5,650. It gives only to preselected organizations and does not accept unsolicited requests.

Oneoc

Santa Ana, CA

ONEOC’s 2024 grants supported health, human services, and food-related work, with most funding going to California organizations, particularly in Orange County; grants ranged from $5,500 to $325,132, with a median of $17,000. The profile does not state whether ONEOC accepts unsolicited grant 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.