Climate Lead Inc

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.

Mulago Foundation

New York, NY

Mulago Foundation funds work including rural access, food fortification, agricultural enterprise, farmer technology, primary healthcare, and community-based conservation; its 2024 grants went to organizations in several U.S. states and locations not specified. Grants ranged from $7,000 to $500,000, with a median of $250,000; whether it accepts unsolicited grant requests is not stated.

World Resources Institute

Washington, DC

World Resources Institute funds work on climate, nature, food, land and water, energy, and sustainable cities, with grants supporting projects in the U.S. and internationally. Its 2024 grants had a median of about $65,800, though amounts ranged widely; its Global Forest Watch Small Grants Fund offers $10,000–$40,000 for eligible forest-related projects. The available information does not state whether it accepts unsolicited requests.

John D and Catherine T Macarthur Foundation

Chicago, IL

The foundation funds a broad range of work, including journalism, arts, Chicago communities, climate and clean energy, homelessness, human rights, and criminal justice reform. Its 2024 grants had a median of $160,000, with awards ranging from $450 to $21 million; funding is nationwide, with the largest shares going to New York, Illinois, and Washington, D.C. Application rules vary by program: some accept self-nominations or Letters of Inquiry, while others generally do not fund unsolicited proposals.

General Atlantic Foundation

New York, NY

The foundation funds preselected charitable organizations working in areas including leadership development, AAPI safety and prosperity, social justice, environmental protection, climate solutions, and education. Its 2024 grants ranged from $2,024 to $910,745, with a median of $25,000; recipients were concentrated in New York, Delaware, California, Washington, DC, and Massachusetts. It does not accept unsolicited requests for funds.

Indus Foundation of Utah

Wilmington, DE

Gates Foundation

Seattle, WA

The Gates Foundation funds work on global health, poverty reduction, gender equality, economic opportunity, and U.S. education, primarily in low-income countries and the United States. Its 2024 grants had a median of $500,000, though amounts varied widely. It generally does not accept unsolicited requests; organizations are usually invited to apply, with occasional published funding opportunities.

The Bloomberg Family Foundation Inc

New York, NY

The foundation funds work in public health, the environment, education, government innovation, and the arts, supporting organizations across the United States and beyond. Its 2024 grants ranged from $70,000 to about $187 million, with a median grant of roughly $1.5 million. Grant proposals are by invitation only, though some named programs offer specific application routes.

Sequoia Climate Foundation

Irvine, CA

Sequoia Climate Foundation funds organizations and coalitions advancing clean energy, climate policy, emissions reduction, and related climate solutions worldwide, with attention to underserved and at-risk communities. In 2024, grants ranged from $50,000 to $17.9 million, with a median of $1 million. It funds only preselected charitable organizations 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.

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.