1,375 active grantmakers

STEM Education Foundations & Grantmakers

1,375 grantmakers in this list reported grants on their latest 990s. The 481 that made at least 5 grants gave $6.5B. The largest by giving are The Ford Foundation, Gordon E and Betty I Moore Foundation and Sandler Foundation. The list below ranks grantmakers with at least 5 grants by annual giving, and each funder links to a profile with its grant history and financials.

Giving at a glance

Active grantmakers

1,375

reported grants on latest 990

Annual giving

$6.5B

from the 481 with 5+ grants

Typical grant

$46K

median of each funder's average grant

Median annual giving

$182K

per grantmaker

Top 10 funders by annual giving

#FunderLocationAnnual givingGrants
1The Ford FoundationNew York, NY$844.7M4,007
2Gordon E and Betty I Moore FoundationPalo Alto, CA$403.0M920
3Sandler FoundationSan Francisco, CA$353.6M41
4The David and Lucile Packard FoundationLos Altos, CA$350.0M1,029
5Good Ventures FoundationPalo Alto, CA$306.7M565
6Chan Zuckerberg Initiative FoundationPalo Alto, CA$235.4M53
7The Rockefeller FoundationNew York, NY$233.2M381
8Novo FoundationHurley, NY$214.1M508
9Crankstart FoundationSan Jose, CA$201.3M435
10American Heart Association IncDallas, TX$198.2M833

Ranked by grants reported on each funder's latest 990. Only grantmakers with at least 5 grants are ranked.

Most common focus areas

  • Science & Technology 327 · 55%
  • Social Science 106 · 18%
  • Education 54 · 9%
  • Arts, Culture & Humanities 24 · 4%
  • Environment & Animals 19 · 3%
  • Medical Research 12 · 2%

Share of grantmakers with a program NTEE code (50% carry any NTEE code); general grantmaking foundations (NTEE T) are not counted.

Where these funders are based

  • California 211 · $2.5B
  • New York 134 · $1.6B
  • District of Columbia 76 · $190.2M
  • Massachusetts 70 · $202.1M
  • Pennsylvania 67 · $360.3M
  • Virginia 67 · $95.5M

Source: IRS Form 990 and 990-PF filings, latest available year per organization (most of the largest funders' latest filing: tax year 2025).

Showing 481 grantmakers with 5+ grants on their latest 990, most giving first

The Ford Foundation

New York, NY

Philanthropy, Voluntarism & Grantmaking

Assets

$17.5B

Grants

4,007

Total Given

$844.7M

Gordon E and Betty I Moore Foundation

Palo Alto, CA

Philanthropy, Voluntarism & Grantmaking

Assets

$11.5B

Grants

920

Total Given

$403.0M

Sandler Foundation

San Francisco, CA

Philanthropy, Voluntarism & Grantmaking

Assets

$251.7M

Grants

41

Total Given

$353.6M

The David and Lucile Packard Foundation

Los Altos, CA

Assets

$8.5B

Grants

1,029

Total Given

$350.0M

Good Ventures Foundation

Palo Alto, CA

Philanthropy, Voluntarism & Grantmaking

Assets

$10.1B

Grants

565

Total Given

$306.7M

Chan Zuckerberg Initiative Foundation

Palo Alto, CA

Philanthropy, Voluntarism & Grantmaking

Assets

$7.5B

Grants

53

Total Given

$235.4M

The Rockefeller Foundation

New York, NY

Assets

$6.4B

Grants

381

Total Given

$233.2M

Novo Foundation

Hurley, NY

Philanthropy, Voluntarism & Grantmaking

Assets

$937.8M

Grants

508

Total Given

$214.1M

Crankstart Foundation

San Jose, CA

Philanthropy, Voluntarism & Grantmaking

Assets

$4.4B

Grants

435

Total Given

$201.3M

American Heart Association Inc

Dallas, TX

Diseases, Disorders & Medical Disciplines

Assets

$2.0B

Grants

833

Total Given

$198.2M

UPMC Group

Pittsburgh, PA

Assets

$14.5B

Grants

395

Total Given

$189.8M

O'Donnell Foundation

Dallas, TX

Assets

$195.1M

Grants

33

Total Given

$187.4M

The Heising-Simons Foundation

Los Altos, CA

Assets

$810.5M

Grants

671

Total Given

$149.6M

John Templeton Foundation

West Conshohocken, PA

Philanthropy, Voluntarism & Grantmaking

Assets

$3.6B

Grants

426

Total Given

$134.4M

M J Murdock Charitable Trust

Vancouver, WA

Philanthropy, Voluntarism & Grantmaking

Assets

$2.0B

Grants

797

Total Given

$116.6M

Climateworks Foundation

San Francisco, CA

Science & Technology

Assets

$533.1M

Grants

140

Total Given

$96.3M

Fred Hutchinson Cancer Center

Seatle, WA

Assets

$3.6B

Grants

139

Total Given

$88.2M

Wm Keck Foundation

Los Angeles, CA

Assets

$1.7B

Grants

260

Total Given

$69.7M

The Patrick J McGovern Foundation Inc

Boston, MA

Assets

$1.5B

Grants

165

Total Given

$66.2M

Association of Universities for Research in Astronomy Inc

Washington, DC

Science & Technology

Assets

$146.6M

Grants

166

Total Given

$64.7M

Public Interest Registry

Reston, VA

Assets

$71.4M

Grants

10

Total Given

$61.2M

Alzheimer's Drug Discovery Foundation

New York, NY

Assets

$299.4M

Grants

26

Total Given

$54.8M

Liberty Mutual Foundation Inc

Boston, MA

Philanthropy, Voluntarism & Grantmaking

Assets

$46.1M

Grants

706

Total Given

$50.6M

The Henry Luce Foundation Inc

New York, NY

Assets

$1.1B

Grants

652

Total Given

$49.3M

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Frequently asked questions

Which funders in this list give the most?

By grants reported on their latest 990s, the largest are The Ford Foundation ($844.7M across 4,007 grants), Gordon E and Betty I Moore Foundation ($403.0M) and Sandler Foundation ($353.6M). Together the top 10 account for 52% of the $6.5B given by the 481 grantmakers in this list that made at least 5 grants. Organizations that reported large giving in fewer grants, usually a single transfer to an affiliated charity, are left out of the ranking.

How big is a typical grant from these funders?

The typical grant is about $46K (the median of each grantmaker's average grant). Half of these grantmakers gave less than $182K in total in their latest filing year, so many are small foundations that give to a few organizations they already know. The largest funders make many more grants, but also get the most requests.

Where are these funders based?

Most are in California (211), New York (134) and District of Columbia (76). Many foundations only fund near where they are based, so check each funder's giving geography before you apply.

How do I find which of these funders accept unsolicited proposals?

Most private foundations don't run an open application. Their 990-PF says whether they only give to preselected charities, and their past grants show who they actually fund. Start with the funders above whose grant counts and typical grant size fit your budget, then check each profile's grant history for organizations like yours before you reach out. Read the grant prospecting guide.

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