Nelson Levitt Foundation

Gorman Foundation Charitable Trust

Aspen, CO

Research Corporation dba Research

Tucson, AZ

Research Corporation for Science Advancement funds early-stage basic scientific research and science education at colleges and universities in the United States and Canada, especially in astronomy, chemistry, and physics. Its 2024 grants ranged from $74 to $193,142, with a median of $55,000; it offers program-specific awards, including a $120,000 Cottrell Scholar Award over three years. Whether it accepts unsolicited requests is not stated.

The Simons Foundation Inc

New York, NY

The Simons Foundation funds research in mathematics and the basic sciences, as well as autism and other disease research, through grants to research centers, universities, and related organizations. In 2024, grants ranged from $1,480 to $20 million, with a median of $72,000; funding is concentrated in New York, California, and Massachusetts, with awards also made elsewhere in the U.S. and internationally. Whether it accepts unsolicited requests is not stated.

Nick DeWolf Foundation

Aspen, CO

The Nick DeWolf Foundation funds organizations working to improve quality of life and education, including programs in science, mathematics, climate, journalism, and the environment. Its 2024 grants ranged from $500 to $106,918, with a median of $1,500; most funding went to Colorado, with some to New York. It funds only preselected charities and does not accept unsolicited requests.

Kimbell Art Foundation

Fort Worth, TX

The Heising-Simons Foundation

Los Altos, CA

The Heising-Simons Foundation funds work in climate and clean energy, early childhood education, human rights, and science, plus smaller initiatives in journalism and youth housing in San Francisco, primarily in the United States. Its 2024 grants ranged from $2,492 to $3.6 million, with a median of about $148,000. It does not accept unsolicited requests, though it sometimes announces open requests for proposals.

Smart Family Foundation of New York

New Rochelle, NY

The foundation supports arts and theater, higher education, workforce opportunity, public gardens, cancer research, and other charitable work, with grants mainly in New York, Connecticut, and New Jersey. Its 2024 grants ranged from $5,000 to $200,000, with a median of $25,000. It funds only preselected organizations and does not accept unsolicited requests.

Gordon E and Betty I Moore Foundation

Palo Alto, CA

The foundation funds scientific research, environmental conservation, and work supporting the San Francisco Bay Area, alongside initiatives in regions such as the Andes-Amazon and Arctic Ocean. Its 2024 grants had a median of $200,000, with awards ranging from $50 to $20 million. It does not accept unsolicited proposals for its Andes-Amazon and Wildfire Resilience initiatives, but invites brief inquiries of about 100 words.

Alfred P Sloan Foundation

New York, NY

The Alfred P. Sloan Foundation supports original research and education in science, technology, engineering, mathematics, and economics, including public education about these fields. Its 2024 grants ranged from $10,000 to $1,479,024, with a median of $98,105; awards went mainly to U.S. recipients, especially in California, New York, and Massachusetts. It accepts funding requests year-round through Letters of Inquiry to relevant program directors.

NV Energy Charitable Foundation

Reno, NV

NV Energy Charitable Foundation funds qualified public charities serving NV Energy’s Nevada service territory, with priorities including safety and wellness, education and youth development, and the environment. In 2025, grants ranged from $350 to $500,000, with a median of $7,500. It accepts unsolicited letters of interest from eligible Nevada nonprofits, with one submission allowed per organization each calendar year.

Community Foundation of Northern Nevada

Reno, NV

The Community Foundation of Northern Nevada supports a wide range of charitable projects, including nonprofit capacity building, mental-health access, housing, and environmental work, with a focus on Northern Nevada. Its 2024 grants had a median award of $20,000, though amounts varied widely; it also offers grants through specific fund cycles.

Tahoe Community Foundation

Incline Village, NV

Tahoe Community Foundation supports nonprofit work in arts, culture and heritage; well-being; community engagement; education and youth development; and the environment, primarily serving the Lake Tahoe Basin. Its 2025 grants had a median of $25,000, while its Action Grants typically provide $2,500–$5,000 for one-time expenses or materials. It accepts unsolicited Action Grant applications on a rolling basis.