Corey & Leslie Leyton Family Foundation

Lyons Share Foundation

Newport Beach, CA

The Lyons Share Foundation supports arts and cultural activities, including performances, concerts, arts education, and community programs. Its 2024 grants ranged from $3,000 to $510,000, with a median of $25,000; nearly all funding went to California organizations, with a small share to Washington, D.C. It does not accept unsolicited requests and gives only to preselected organizations.

The William Gillespie Foundation

Corona Del Mar, CA

The William Gillespie Foundation’s 2024 grants supported arts, libraries, Olympic organizations, and youth justice, with awards ranging from $2,000 to $9,500 (median $5,000). Most grant dollars went to California, though some recipients’ locations were unidentified. The 2024 filing is marked as a final return; it says giving is not restricted to preselected organizations, but does not specify whether unsolicited requests are accepted.

RPM Foundation

Newport Beach, CA

The Paul & Elisabeth Merage

Newport Beach, CA

Samueli Foundation

Corona Del Mar, CA

The Samueli Foundation primarily funds community well-being and opportunity in Orange County, California, including education, food security, homelessness, and Jewish life in Orange County and Israel. Its 2024 grants ranged from $500 to nearly $9.7 million, with a median of about $39,500; open initiatives offer awards of $50,000–$100,000, up to $500,000, or up to $1 million, depending on the fund. It does not accept unsolicited requests for strategic grantmaking, but eligible organizations can apply to open initiatives during their application windows.

The Confidence Foundation

Pasadena, CA

The Confidence Foundation supports a varied mix of charitable organizations, including youth, health, education, animal welfare, and heritage programs. In 2024, it awarded 215 grants ranging from $250 to $385,500, with a median of $5,000, primarily in California and Missouri, with additional funding in Idaho, Washington, and Hawaii. It funds only preselected organizations and does not accept unsolicited requests.

Jack and Shanaz Langson

Newport Beach, CA

The foundation supports arts and cultural institutions, healthcare, education, religious organizations, and other charities, with most 2024 funding going to California organizations. Its 22 grants ranged from $1,000 to $1.7 million, though the median was $7,500. It funds only preselected organizations and does not accept unsolicited requests.

The Shelly Family Foundation

Irvine, CA

Jewish Community Foundation of Orange County

Irvine, CA

The Jewish Community Foundation Orange County primarily funds Jewish nonprofit organizations serving Orange County, supporting Jewish life and programs for people of different ages and needs; it also makes grants to other charitable organizations, including recipients outside California. Its 2025 grants had a median of about $25,000, though amounts varied widely. The Foundation says its General Grants Program reviews applications, but the available information does not state whether it accepts 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.