Wait List Zero

Lawrence and Ira Straus Charitable Tr

Arlington, VA

Manifold for Charity Inc

San Francisco, CA

Manifold for Charity funds projects often overlooked by institutional donors, especially in AI safety and governance, effective giving, and other high-impact areas such as animal welfare and catastrophic-risk resilience. In 2024, its 24 grants ranged from $5,110 to $279,583, with a median of about $40,500, and went to recipients in multiple U.S. states, mainly California. The profile describes a public proposal platform but does not explicitly state whether it accepts unsolicited requests.

Effective Ventures Foundation USA Inc

San Francisco, CA

Effective Ventures Foundation USA supports effective-altruism projects, including work on extreme poverty, animal wellbeing, global risks, and the long-term future. In 2025, its grants ranged from $5,212 to $2.66 million, with a median of about $92,000, and went to organizations in multiple U.S. states, especially Delaware and California. EA Funds invites applications for projects that fit its programs.

Mercatus Center Inc

Arlington, VA

Mercatus Center funds research and education, university teaching, applied economic research, and projects aligned with market-oriented and classical liberal ideas. Its 2025 grants had a median of $25,000, with awards ranging from $7,300 to $1.1 million, and supported recipients across the U.S. and internationally; its Emergent Ventures program accepts applications.

Founders Pledge Inc

New York, NY

Founders Pledge supports research-backed charitable work, including global health and development, education, climate, and global-risk initiatives; its current funding invitation focuses on education and job, entrepreneurship, or agriculture training in low- and middle-income countries. In 2024, grants ranged from $5,250 to $8.925 million, with a median of $77,500. It accepts unsolicited expressions of interest for eligible education and training programs that meet its budget, reach, and impact-evidence criteria.

Rainwater Charitable Foundation

Fort Worth, TX

The Rainwater Charitable Foundation funds education and family economic security in North Texas, tauopathy research, and selected initiatives in East Africa. Its 2024 grants had a median of $50,000, though awards varied widely; it funds preselected organizations and does not accept unsolicited requests, with new family economic security inquiries currently paused.

Good Ventures Foundation

Palo Alto, CA

Good Ventures supports global health and development in low- and middle-income countries, reducing animal suffering, and economic growth and opportunity primarily in the United States, as well as ambitious potential innovations. Its 2025 grants ranged from $398 to $10.5 million, with a median of about $154,000. It gives only to preselected charitable organizations and does not accept unsolicited funding 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.

Tides Foundation

San Francisco, CA

Tides Foundation funds community-led organizations advancing equity and justice, including work on health, climate, gender equity, democracy, and immigrant communities. Its 2024 grants had a median of $50,000, though amounts varied widely, and it funds eligible organizations in the U.S. and abroad, with the most grant dollars going to California, New York, and Washington, D.C. Some programs are open or invitation-only; the Advancing Girls Fund is listed as open, but the profile does not state a general policy on unsolicited grant 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.