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The Heising-simons Foundation

EIN: 26-0799587 • Los Altos, CA
Total Assets
$810.5M
Foundation endowment scale
Annual Giving
$149.6M
Annual capital distribution
Typical Grant
$148,432
Most grants: $100K – $250K
Application Status
Invitation Only
Rolling review

About The Heising-simons Foundation Grantmaking

The Heising-simons Foundation is an institutional grantmaking foundation headquartered in Los Altos, CA (EIN: 26-0799587). According to verified IRS Form 990-PF filings, the foundation maintains $810.5M in total assets and distributed $149.6M across 2,053 grants. Its typical award size is $148,432, with the middle 50% of awards falling between $100K and $250K. Its primary funding focus includes Education & Literacy (42%), Environment & Animals (18%), Human Services & Relief (16%), with the highest concentration of grants awarded in CA (57%) and DC (21%).

Top Funded Causes% Capital
Education & Literacy42%
$86.4M deployed363 awards
Environment & Animals18%
$37.3M deployed127 awards
Human Services & Relief16%
$33.5M deployed176 awards
Philanthropy & Grantmaking12%
$25.2M deployed151 awards
Science & Technology10%
$21.2M deployed77 awards
Top Recipient States% Dollars
CA State Recipients57%
$196.4M funded909 grants
DC State Recipients21%
$71.1M funded250 grants
NY State Recipients12%
$41.8M funded190 grants
MA State Recipients6%
$21.6M funded109 grants
VA State Recipients3%
$11.8M funded34 grants
Grant Size DistributionAward Scale
Major Grants ($100K+)72%
1,482 large institutional grants
Mid-Sized ($25K–$100K)21%
421 standard program grants
Micro & Small (<$25K)7%
150 grassroots micro-awards
Application Guidelines & DeadlinesPublic Filing Data
Application Policy
Invitation Only / Preselected Grantees
Submission Deadlines

Quarterly review cycles. Applications accepted continuously.

Geographic Focus & Restrictions

Priority given to organizations registered and operating in CA or regional districts.

Program Officer & Direct Contacts

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Recent Grant AwardsShowing 5 of 2,053 verified awards
Recipient OrganizationLocationTax YearAward AmountGrant Purpose
Environmental Defense Fund INCSan Francisco, CA2024$3,600,000To advance climate and clean energy policies
Natural Resources Defense CouncilSan Francisco, CA2024$3,300,000To advance climate and clean energy policies
Amalgamated Charitable FoundationWashington, DC2024$2,061,856For the democracy frontlines fund
Global ImpactAlexandria, VA2024$2,000,000For the emerging bilingual collaborative
National Association for Family School and Community EngagementAlexandria, VA2024$1,900,000For the center for family math
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Frequently Asked Questions about The Heising-simons Foundation

Does The Heising-simons Foundation accept unsolicited grant proposals?

The Heising-simons Foundation operates on an invitation-only basis and primarily funds preselected organizations. Direct unsolicited applications are not currently reviewed.

What is the typical grant size from The Heising-simons Foundation?

The median grant size from The Heising-simons Foundation is $148,432, with the middle 50% of awards ranging between $100K and $250K.

What causes does The Heising-simons Foundation fund?

Over recent Form 990-PF filings, The Heising-simons Foundation's primary funding areas have been Education & Literacy, Environment & Animals, Human Services & Relief.

How do I contact The Heising-simons Foundation about a grant?

The Heising-simons Foundation is headquartered in Los Altos, CA. Verified NPO Grant subscribers can access direct program officer telephone extensions, primary office numbers, and detailed submission guidelines.