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· Private foundation

The Heising-Simons Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$150M
Granted FY2024still arriving
671
Grants FY2024still arriving
40
States reached
$3.6M
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
05Through PlinthRead
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.

Education$254MEnvironment$161MPhilanthropy$117MScience & Tech$102MCivil Rights$63MCrime & Legal$52MHuman Services$47MHealth$47MOther$0
02FY2024 · 671 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • Under $10k11 grants · $61k
  • $10k–50k64 grants · $1.3M
  • $50k–250k406 grants · $51M
  • $250k+190 grants · $98M
$148,432
Median grant
40
States reached
$810M
Total assets
Largest grants
RecipientAmount
ENVIRONMENTAL DEFENSE FUND INC$3,600,000
NATURAL RESOURCES DEFENSE COUNCIL$3,300,000
AMALGAMATED CHARITABLE FOUNDATION$2,061,856
GLOBAL IMPACT$2,000,000
NATIONAL ASSOCIATION FOR FAMILY SCHOOL AND COMMUNITY ENGAGEMENT$1,900,000
CALIFORNIA EDUCATION PARTNERS$1,500,000
NEW VENTURE FUND$1,500,000
ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY$1,313,000
CLIMATE AND CLEAN ENERGY EQUITY FUND$1,200,000
REGENTS OF THE UNIVERSITY OF CALIFORNIA AT BERKELEY$1,155,000
TIDES FOUNDATION$1,124,831
CENTER FOR COMMUNITY CHANGE$1,000,000
POWERMYLEARNING INC$1,000,000
INTERNATIONAL COUNCIL ON CLEAN TRANSPORTATION$1,000,000
THIRD SECTOR NEW ENGLAND INC$1,000,000
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Your human-services grants (FY17–24, $46.5M) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 58% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 10%CHILDREN'S NETWORK OF SOLANO COUNTY: $400k → 10%ALLIANCE FOR EARLY SUCCESS: $2.6M → 5%FAMILY VALUES AT WORK A MULTI-STATE CONSORTIUM: $1.0M → 17%CHILD CARE AWARE OF AMERICA: $800k → 7%SILICON VALLEY DE-BUG: $300k → 8%ALLIANCE FOR EARLY SUCCESS: $2.6M → 5%FAMILY VALUES AT WORK A MULTI-STATE CONSORTIUM: $500k → 17%SILICON VALLEY DE-BUG: $300k → 8%LA LUZ CENTER: $400k → 9%ALLIANCE FOR EARLY SUCCESS: $2.0M → 5%SILICON VALLEY DE-BUG: $300k → 8%ALLIANCE FOR EARLY SUCCESS: $1.1M → 5%SILICON VALLEY DE-BUG: $300k → 8%ALLIANCE FOR EARLY SUCCESS: $1.1M → 5%SILICON VALLEY DE-BUG: $300k → 8%ALLIANCE FOR EARLY SUCCESS: $900k → 5%SILICON VALLEY DE-BUG: $300k → 8%CHILD CARE AWARE OF AMERICA: $600k → 7%YMCA OF SILICON VALLEY: $356k → 8%CALIFORNIA CHILDREN AND FAMILIES FOUNDATION INC: $600k → 10%CALIFORNIA CHILDREN AND FAMILIES FOUNDATION INC: $300k → 10%PARTNERSHIP FOR AMERICA'S CHILDREN: $900k → 14%TIDES CENTER: $425k → 8%TIDES CENTER: $400k → 8%TIDES CENTER: $350k → 8%CHILDREN NOW: $330k → 10%SACRED HEART COMMUNITY SERVICE: $900k → 8%SACRED HEART COMMUNITY SERVICE: $475k → 8%CHILDREN NOW: $375k → 10%CHILDREN NOW: $330k → 10%IMMIGRANT LEGAL RESOURCE CENTER: $450k → 10%CHILD CARE ALLIANCE OF LOS ANGELES: $376k → 14%CALIFORNIA CHILD CARE RESOURCE AND REFERRAL NETWORK: $400k → 10%THE OPPORTUNITY INSTITUTE: $1.1M → 10%CALIFORNIA CHILD CARE RESOURCE AND REFERRAL NETWORK: $350k → 10%TIDES CENTER: $950k → 10%TIDES CENTER: $815k → 10%TIDES CENTER: $625k → 10%TIDES CENTER: $625k → 10%TIDES CENTER: $533k → 10%TIDES CENTER: $507k → 10%TIDES CENTER: $500k → 10%TIDES CENTER: $500k → 10%TIDES CENTER: $488k → 10%TIDES CENTER: $450k → 10%TIDES CENTER: $450k → 10%TIDES CENTER: $372k → 10%TIDES CENTER: $323k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

ME
VT
NH
WA
MT
MN
IL
WI
MI
NY
MA
OR
NV
SD
IN
OH
PA
NJ
CT
RI
CA
UT
CO
NE
MO
KY
WV
VA
MD
DE
AZ
NM
KS
AR
TN
NC
SC
DC
HI
OK
LA
AL
GA
TX
FL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

04

Where the work is directed

The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.

About 8% of The Heising-Simons Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.

The Heising-Simons Foundationlessmore of its giving
Placed by recipient address · 2.7% directed abroad (not shown)

Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

94%of every dollar goes to organizations you’ve funded before.
$780M · 561 repeat orgs$49M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +45% since the first grant, against +17% for the ones you funded once.

561 repeat relationships — 340 still active in FY2024, 221 since wound down; 53 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

561
243

Total granted

$780M
$42M

Median revenue growth · since first grant

+45%
+17%

Still filing today

86%
72%

New vs renewed · share of each year

In FY2024, 95% of grant dollars renewed an existing relationship; $6.9M went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24
EducationHuman ServicesEnvironmentArts & CultureCivil RightsCrime & LegalOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.

Backed again, and grew

  • ENVIRONMENTAL DEFENSE FUND INCORPORATED
    8× · 2017–2024 · $33M · revenue +202%
  • NATURAL RESOURCES DEFENSE COUNCIL INC
    8× · 2017–2024 · $29M · revenue +41%
  • CI
    CALIFORNIA INSTITUTE OF TECHNOLOGY
    8× · 2017–2024 · $19M · revenue +35%

Funded once

  • NF
    NATIONAL FOUNDATION FOR THE CENTERS FOR DISEASE CONTROL AND PREVENTION INC
    one grant, 2020 · $2.4M · revenue -35%
  • UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION
    one grant, 2020 · $2.0M · revenue 0%
  • SF
    SAN FRANCISCO STATE UNIVERSITY
    one grant, 2023 · $1.6M

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
California Forward

Ca fwd drives action to identify solutions that can be taken to scale to meet the challenges the state is facing. the organization is driven by the belief that regional solutions across the state will help ensure economic, environmental,…

Public Benefit
2
CarbonPlan

Improving the transparency and scientific integrity of climate solutions through open data and tools.

Environment
3
The Climate Center

The Climate Center is a climate and energy policy nonprofit working to rapidly reduce climate pollution at scale, starting in California.

Education
4
Jobs with Justice San Francisco

A long-term, strategic alliance of labor, community, faith-based, and student organizations working together to build greater economic power for workers and community members through employee rights at work and access to good jobs,…

Employment
5
American Civil Liberties Union of Northern California

The american civil liberties union of northern california (aclu nc union) defends and advances the principles of freedom, equality and justice contained in the united states constitution. aclu nc union, a california mutual benefit…

—
6
Common Future

Common future is a network of pioneering leaders across the u.s. and canada who work deeply within their communities to create alternative approaches to business, philanthropy, and investing. we envision an economy that has transitioned…

Community Improvement
7
Central Indiana Corporate Partnership Inc

Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…

Community Improvement
8
Council for Court Excellence

Council for court excellence's (cce's) mission is to bring people together to conduct research, educate, and advocate to make d.c.'s unique legal systems more just, equitable, and accountable to the community.

—
9
The Common Application Inc

The common application is a not-for-profit membership organization of over 1,100 colleges and universities across the globe committed to access, equity, and integrity in the college admission process. every year, over 1.5 million students…

Education
10
National Opinion Research Center

See schedule onorc at the university of chicago conducts research and data science on critical societal issues to guide decision-making and the development of programs and public policy. our experts identify relationships and trends, and…

Social Science
11
Open Markets Institute

The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.

Education
12
Center for International Environmental Law Inc

To investigate, research, write, publish, present conferences and teach with respect to global, regional, transboundary, and comparative environmental issues and to make the findings from such activities available to the general public; to…

International

For reference, the grantee most central to the portfolio’s shape is Grantmakers for Education and the most unlike its peers is Rosenberg Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.

← shrinkinggrowing →↓ leaning in → pulling backsteadyEnvironmental Conservation …Policy Research and AdvocacyIndependent K-12 SchoolsImmigrant Worker SupportWomen & Girls Leadership De…Child Abuse Advocacy Servic…Youth Development ServicesLgbtq+ Community SupportJewish Community Organizati…Health Access Advocacy and …Pregnancy Support ServicesChristian Missionary Organi…Senior Support ServicesSchool Parent OrganizationsCommunity Arts CentersCommunity FoundationsOrchestra and Ensemble Perf…Local History MuseumsDomestic Violence ServicesFood Banks and PantriesSchool District FoundationsCommunity College Foundatio…Community FoundationsElementary Literacy TutoringAffordable Housing Developm…Faith-Based Liberal Arts Co…
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.

Your grantees are a median of 27 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%4%<5yr14%12%5–10yr19%21%10–20yr16%26%20–35yr13%19%35–55yr16%18%55yr+
THE FIELDby orgYOUR MONEYby value22%3%<5yr14%7%5–10yr19%19%10–20yr16%22%20–35yr13%18%35–55yr16%33%55yr+

The field is 22% startups (under 5 years old) — 4% of your grantees by number, and just 3% of your money.

Closures · last 5 years

The orgs you fund almost never close — 0.8% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.8%6/789
the rest of the field
13%
240,390/1,818,776

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

05the grantee network

751 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 751 of the 899 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

41
Load-bearing (≥25% of a budget)
163
Early backer (in before they grew)
741/751
Grantees still filing
509/751
Grew since you first funded

Where your money sits — by cause, then by grantee

REGENTS OF THE UNIVERSITY OF CALIFORNIA AT BERKELEY — $23,101,560 · OtherREGENTS OF THE UNIVERSITY OF CALIFORNIA AT…REGENTS OF THE UNIVERSITY OF CALIFORNIA — $12,488,414 · OtherREGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGO — $10,402,268 · Other+87 more — $233,200,178 · Other+87 moreTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $20,811,491 · EducationTHE BOARD OF TRUSTEES O…CALIFORNIA INSTITUTE OF TECHNOLOGY — $19,423,124 · EducationCALIFORNIA INSTITUTE OF…Massachusetts Institute of Technology — $8,650,319 · EducationMassachusetts Institute…University of Chicago — $8,472,852 · EducationUniversity of ChicagoTHE CALIFORNIA EDUCATION PARTNERS — $7,850,000 · EducationPresident and Fellows of Harvard College — $6,540,931 · EducationNational Association for Family School & Community — $6,433,000 · EducationARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY — $5,537,541 · Education+33 more — $73,609,523 · Education+33 moreENVIRONMENTAL DEFENSE FUND INCORPORATED — $32,531,000 · EnvironmentENVIRONMENTAL DEFENS…NEW VENTURE FUND — $31,021,194 · EnvironmentNEW VENTURE FUNDNATURAL RESOURCES DEFENSE COUNCIL INC — $29,375,000 · EnvironmentNATURAL RESOURCES DE…The Partnership Project Inc — $8,473,000 · EnvironmentThe Partnership Proj…SOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC — $5,830,170 · EnvironmentAdvanced Energy Institute — $5,067,000 · Environment+11 more — $23,560,104 · Environment+11 moreTIDES FOUNDATION — $15,232,038 · PhilanthropyTIDES FOUN…COMMUNITY INITIATIVES — $8,098,500 · PhilanthropyCOMMUNITY …UNITED STATES ENERGY FOUNDATION — $7,070,000 · PhilanthropyUNITED STA…Silicon Valley Community Foundation — $4,959,334 · PhilanthropySilicon Va…Amalgamated Charitable Foundation Inc — $3,967,784 · PhilanthropyAmalgamate…ROCKEFELLER PHILANTHROPY ADVISORS INC — $3,706,284 · PhilanthropyROCKEFELLE…PHILANTHROPIC VENTURES FOUNDATION — $3,231,654 · PhilanthropyROBIN HOOD FOUNDATION — $2,983,333 · PhilanthropyFOOTHILL-DEANZA COMMUNITY COLLEGES FOUNDATION — $2,800,000 · PhilanthropyFUND FOR THE CITY OF NEW YORK INC — $2,560,000 · PhilanthropyDignity and Power Now — $2,425,000 · PhilanthropyMOMSRISING EDUCATION FUND — $2,365,000 · PhilanthropyGroundswell Fund — $2,290,000 · Philanthropy+4 more — $5,861,460 · Philanthropy+4 moreTIDES CENTER — $13,301,732 · Human ServicesALLIANCE FOR EARLY SUCCESS FKA BIRTH TO FIVE POLICY ALLIANCE — $11,720,000 · Human ServicesIMMIGRANT LEGAL RESOURCE CENTER — $3,960,000 · Human ServicesCalifornia Child Care Resource and Referral Network — $2,315,000 · Human ServicesFAMILY VALUES WORK A MULTI-STATE CONSORTIUM — $2,295,000 · Human ServicesCalifornia Children and Families Foundation Inc — $2,225,000 · Human ServicesCHILDREN NOW — $2,224,500 · Human ServicesSACRED HEART COMMUNITY SERVICE — $2,202,000 · Human ServicesSilicon Valley De-Bug — $2,190,000 · Human Services+5 more — $6,575,000 · Human ServicesLAS CUMBRES OBSERVATORY GTN INC — $5,146,654 · Science & TechCALIFORNIA ASSOCIATION FOR RESEARCH IN ASTRONOMY — $4,920,181 · Science & TechCLIMATEWORKS FOUNDATION — $4,772,971 · Science & TechPowerMyLearning Inc — $4,740,000 · Science & TechAMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE — $3,020,011 · Science & TechUniversity of Kansas Center for Research Inc — $2,501,521 · Science & TechAstrophysical Research Consortium — $1,981,451 · Science & TechNATIONAL ACADEMY OF SCIENCES — $1,648,468 · Science & TechCARNEGIE INSTITUTION OF WASHINGTON — $1,629,996 · Science & TechTERC INC — $1,532,236 · Science & TechSCIENCE FRIDAY INITIATIVE INC — $1,505,000 · Science & TechCLIMATE CENTRAL INC — $1,425,000 · Science & TechAMERICAN PHYSICAL SOCIETY — $1,388,737 · Science & TechTHIRD SECTOR NEW ENGLAND INC — $11,502,387 · Community ImprovementCENTER FOR COMMUNITY CHANGE — $3,251,000 · Community ImprovementTHE GREENLINING INSTITUTE — $2,817,000 · Community ImprovementGREAT PLAINS INSTITUTE FOR SUSTAINABLE DEVELOPMENT INC — $2,646,000 · Community ImprovementCOMMUNITY PARTNERS — $2,491,667 · Community ImprovementSOMOS MAYFAIR INC — $1,419,000 · Community ImprovementTHE MARSHALL PROJECT INC — $1,350,000 · Community ImprovementCANGRESS DBA LOS ANGELES COMMUNITY ACTION NETWORK — $1,200,000 · Community Improvement
Other$279,192,420Education$157,328,781Environment$135,857,468Philanthropy$67,550,387Human Services$49,008,232Science & Tech$36,212,226Community Improvement$26,677,054

Showing your 200 largest grantees by grant value.

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ your share of their budgetENVIRONMENTAL DEFENSE FUND INCORPORATED — $32,531,000 over 8y, 2.4% of budgetNEW VENTURE FUND — $31,021,194 over 8y, 1.2% of budgetNATURAL RESOURCES DEFENSE COUNCIL INC — $29,375,000 over 8y, 2.4% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $20,811,491 over 8y, 0.1% of budgetCALIFORNIA INSTITUTE OF TECHNOLOGY — $19,423,124 over 8y, 0.1% of budgetTIDES FOUNDATION — $15,232,038 over 7y, 0.7% of budgetTIDES CENTER — $13,301,732 over 8y, 1.0% of budgetALLIANCE FOR EARLY SUCCESS FKA BIRTH TO FIVE POLICY ALLIANCE — $11,720,000 over 7y, 21% of budgetTHIRD SECTOR NEW ENGLAND INC — $11,502,387 over 8y, 6.2% of budgetNEO Philanthropy Inc — $8,740,000 over 7y, 1.3% of budgetMassachusetts Institute of Technology — $8,650,319 over 8y, 0.0% of budgetThe Partnership Project Inc — $8,473,000 over 6y, 7.2% of budgetUniversity of Chicago — $8,472,852 over 8y, 0.0% of budgetCOMMUNITY INITIATIVES — $8,098,500 over 8y, 5.6% of budgetTHE CALIFORNIA EDUCATION PARTNERS — $7,850,000 over 5y, 33% of budgetUNITED STATES ENERGY FOUNDATION — $7,070,000 over 6y, 1.0% of budgetPresident and Fellows of Harvard College — $6,540,931 over 7y, 0.0% of budgetNational Association for Family School & Community — $6,433,000 over 8y, 75% of budgetSOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC — $5,830,170 over 7y, 2.2% of budgetARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY — $5,537,541 over 7y, 0.7% of budgetLAS CUMBRES OBSERVATORY GTN INC — $5,146,654 over 7y, 8.2% of budgetAdvanced Energy Institute — $5,067,000 over 7y, 21% of budgetSilicon Valley Community Foundation — $4,959,334 over 8y, 0.1% of budgetCALIFORNIA ASSOCIATION FOR RESEARCH IN ASTRONOMY — $4,920,181 over 6y, 6.5% of budgetCLIMATEWORKS FOUNDATION — $4,772,971 over 7y, 0.4% of budgetPowerMyLearning Inc — $4,740,000 over 5y, 17% of budgetSTART EARLY — $4,675,000 over 8y, 1.2% of budgetSociety for Research in Child Development Inc — $4,623,819 over 8y, 23% of budgetCENTER FOR AMERICAN PROGRESS — $4,601,470 over 8y, 2.6% of budgetGEORGETOWN UNIVERSITY — $4,534,465 over 8y, 0.0% of budgetTHE INTERNATIONAL COUNCIL ON CLEAN TRANSPORTATION INC — $4,300,000 over 6y, 11% of budgetBILL HILLARY & CHELSEA CLINTON FOUNDATION — $4,050,000 over 7y, 2.3% of budgetTeachers College Columbia University — $4,031,798 over 5y, 0.5% of budgetAmalgamated Charitable Foundation Inc — $3,967,784 over 3y, 0.6% of budgetIMMIGRANT LEGAL RESOURCE CENTER — $3,960,000 over 8y, 3.5% of budgetNATIONAL WOMEN'S LAW CENTER — $3,890,000 over 7y, 3.5% of budgetRocky Mountain Institute — $3,865,000 over 7y, 1.9% of budgetROCKEFELLER PHILANTHROPY ADVISORS INC — $3,706,284 over 7y, 0.2% of budgetCENTER FOR LAW AND SOCIAL POLICY — $3,688,925 over 8y, 7.0% of budgetTHE UNION OF CONCERNED SCIENTISTS INC — $3,614,000 over 8y, 1.5% of budgetASPEN GLOBAL CHANGE INSTITUTE INC — $3,567,300 over 5y, 19% of budgetNEW AMERICA FOUNDATION — $3,425,000 over 8y, 1.4% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $3,422,818 over 8y, 0.0% of budgetBIPARTISAN POLICY CENTER INC — $3,400,000 over 8y, 2.5% of budgetWGBH Educational Foundation — $3,314,605 over 8y, 0.3% of budgetLearning Policy Institute — $3,305,210 over 7y, 7.4% of budgetCENTER FOR COMMUNITY CHANGE — $3,251,000 over 6y, 3.3% of budgetTHE ENERGY FOUNDATION — $3,250,000 over 2y, 1.6% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

  • Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
  • Who funds NEW VENTURE FUND ↗
  • Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
  • Who funds CALIFORNIA INSTITUTE OF TECHNOLOGY ↗
  • Who funds TIDES FOUNDATION ↗
  • Who funds TIDES CENTER ↗
  • Who funds ALLIANCE FOR EARLY SUCCESS FKA BIRTH TO FIVE POLICY ALLIANCE ↗
  • Who funds THIRD SECTOR NEW ENGLAND INC ↗
  • Who funds NEO Philanthropy Inc ↗
  • Who funds Massachusetts Institute of Technology ↗
  • Who funds The Partnership Project Inc ↗
  • Who funds University of Chicago ↗
  • Who funds COMMUNITY INITIATIVES ↗
  • Who funds THE CALIFORNIA EDUCATION PARTNERS ↗
  • Who funds UNITED STATES ENERGY FOUNDATION ↗
  • Who funds President and Fellows of Harvard College ↗
  • Who funds National Association for Family School & Community ↗
  • Who funds SOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC ↗
  • Who funds ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY ↗
  • Who funds LAS CUMBRES OBSERVATORY GTN INC ↗
  • Who funds Advanced Energy Institute ↗
  • Who funds Silicon Valley Community Foundation ↗
  • Who funds CALIFORNIA ASSOCIATION FOR RESEARCH IN ASTRONOMY ↗
  • Who funds CLIMATEWORKS FOUNDATION ↗
  • Who funds PowerMyLearning Inc ↗
  • Who funds START EARLY ↗
  • Who funds Society for Research in Child Development Inc ↗
  • Who funds CENTER FOR AMERICAN PROGRESS ↗

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Philanthropic Venture…The David and Lucile …The Sobrato Family Fo…The California Endowm…The William & Flora H…The James Irvine Foun…Wellspring Philanthro…The California Wellne…NEO Philanthropy IncSunlight GivingAmalgamated Charitabl…The Libra Foundation
Philanthropic Ventures FoundationCA126.6× affinity89 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Philanthropic Ventures Foundation · The David and Lucile Packard Foundation · The Sobrato Family Foundation · The California Endowment · The William & Flora Hewlett Foundation · The James Irvine Foundation · Wellspring Philanthropic Fund Inc · The California Wellness Foundation · NEO Philanthropy Inc · Sunlight Giving · Amalgamated Charitable Foundation Inc · The Libra Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization The Heising-Simons Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 40%6%25%56%100%your share of their income ↑0%25%50%75%100%share of the org’s income from government →median 7%
  • Northeast Energy Efficiency Partnerships — 100% of income from government
  • Education Development Center Inc — 65% of income from government
  • Terc Inc — 44% of income from government
  • Massachusetts Institute of Technology — 35% of income from government
  • Trustees of Tufts College — 13% of income from government
  • Johns Hopkins University — 12% of income from government
  • Reach Out and Read Inc — 9% of income from government
  • President and Fellows of Harvard College — 7% of income from government
  • Forth Mobility Fund — 7% of income from government
  • Teachers Development Group — 5% of income from government
  • Third Sector New England Inc — 3% of income from government
  • American Physical Society — 1% of income from government
  • Wgbh Educational Foundation — 1% of income from government
  • National Consumer Law Center Inc — 1% of income from government
  • Ceres Inc — 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
37report government grants on their 990 we could not trace to a source (not plotted)
2rely on government for over half their income
typical government reliance, FY20–25

Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Heising-Simons Foundation?

Find your warmest path to The Heising-Simons Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 899 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home