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Enduring Hearts Inc at a glanceMostly funded, not a grantmaker: see who funds it →

· Public charity

Enduring Hearts Inc

Enduring hearts funds important and innovative research to increase the longevity of pediatric heart transplant transplants and improve the quality of life for transplant recipients.

$454k
Granted FY2025still arriving
3
Grants FY2025still arriving
3
States reached
$254k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

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

Health$7.7MScience & Tech$180kHuman Services$111k
02FY2025 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 3 grants below total $416,500, the rows itemized in this filing. The $453,558 headline is the total grant expense on the return; the other $37,058 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • $10k–50k1 grant · $13k
  • $50k–250k1 grant · $150k
  • $250k+1 grant · $254k
$150,000
Median grant
3
States reached
$4.3M
Total assets
Largest grants
RecipientAmount
EMORY UNIVERSITY - DAVIS$254,000
BAYLOR COLLEGE OF MEDICINE$150,000
CLEVELAND CLINIC AND CHILDREN'S HOSPITAL$12,500
02The need
03

Does the money reach high-need areas?

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

show:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 70% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%HARVARD MEDICAL SCHOOL: $150k → 16%CHILDREN'S HOSPITAL OF PHILADELPHIA: $93k → 22%STANFORD UNIVERSITY SCHOOL OF MEDIC: $375k → 8%LOMA LINDA UNIVERSITY CHILDREN'S HO: $8k → 14%UNIVERSITY OF CALIFORNIA AT LOS ANG: $80k → 14%AMERICAN HEART ASSOCIATION: $108k → 14%BAYLOR COLLEGE OF MEDICINE: $375k → 16%MEDICAL UNIVERSITY OF SOUTH CAROLIN: $119k → 12%MEMORIAL HEALTHCARE SYSTEM: $251k → 13%UNIVERSITY OF FLORIDA: $156k → 19%UNIVERSITY OF MICHIGAN: $233k → 14%CHILDREN'S HOSPITAL OF WISCONSIN: $75k → 17%CHILDREN'S HOSPITAL AT VANDERBILT U: $200k → 14%GEORGIA TECH RESEARCH CORPORATION: $180k → 13%CHILDREN'S HOSPITAL OF ATLANTA: $250k → 14%THE OHIO STATE UNIVERSITY: $125k → 15%CASE WESTERN RESERVE UNIVERSITY: $300k → 17%UNIVERSITY OF WASHINGTON: $56k → 9%INOVA HEALTH CARE SERVICES: $248k → 6%BOSTON CHILDREN'S HOSPITAL: $6k → 16%STANFORD UNIVERSITY SCHOOL OF MEDIC: $375k → 8%UT SOUTHWESTERN MEDICAL CENTER: $126k → 14%BAYLOR COLLEGE OF MEDICINE: $150k → 16%VANDERBILT UNIVERSITY MEDICAL CENTE: $199k → 14%CHILDREN'S HOSPITAL OF ATLANTA: $150k → 14%INOVA HEALTH CARE SERVICES: $150k → 6%MASSACHUSETTS GENERAL HOPSITAL AT H: $40k → 16%STANFORD UNIVERSITY SCHOOL OF MEDIC: $263k → 8%BAYLOR COLLEGE OF MEDICINE: $150k → 16%CHILDRENS HOSPITAL AT VANDERBILT U: $162k → 14%STANFORD UNIVERSITY SCHOOL OF MEDIC: $162k → 8%BAYLOR COLLEGE OF MEDICINE: $150k → 16%CHILDREN'S HOSPITAL AT VANDERBILT U: $160k → 14%STANFORD UNIVERSITY: $115k → 8%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

WA
WI
MI
MA
OH
PA
CA
CO
VA
AZ
TN
SC
AL
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

38%of every dollar goes to organizations it has funded before.
$2.7M · 6 repeat orgs$4.4M to everyone else

Grantees it renews have grown median revenue +119% since the first grant, against +54% for those funded once.

6 repeat relationships: 1 still active in FY2025, 5 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

6
24

Total granted

$2.7M
$4.1M

Median revenue growth · since first grant

+119%
+54%

Still filing today

33%
38%

New vs renewed · share of each year

In FY2025, 36% of grant dollars renewed an existing relationship; $267k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
HealthEducationOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • BC
    Baylor College of Medicine
    4× · 2020–2025 · $825k · revenue +47%
  • CH
    CHILDREN'S HOSPITAL AT VANDERBILT U
    3× · 2018–2023 · $522k
  • RO
    REGENTS OF THE UNIVERSITY OF COLORADO
    2× · 2019–2022 · $433k

Funded once

  • A
    AHA
    one grant, 2024 · $1.5M
  • CASE WESTERN RESERVE UNIVERSITYgraduated
    one grant, 2019 · $300k · revenue +43%
  • MH
    MEMORIAL HEALTHCARE SYSTEM
    one grant, 2024 · $251k
How this is measured

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

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Rush University Medical Center

The mission of Rush is to improve the health of the individuals and diverse communities we serve through the integration of outstanding patient care, education, research and community partnerships.

Health
2
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
3
Texas Children's Hospital

Texas children's hospital, headquartered in houston, texas, is a not-for-profit organization whose mission is to create a healthier future for children and women throughout our global community by leading in patient care, education and…

Health
4
Rhode Island Hospital

As a founding hospital in the brown university health system, rih is committed to its mission: delivering health with care.

Health
5
Mass General Brigham Incorporated & Affiliates Group Return

Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.

Health
6
Children's Health Care

We champion the health needs of children and families. we are committed to improving children's health by providing the highest-quality, family centered care, advanced through research and education.

Health
7
Methodist Healthcare-Memphis Hospitals

Methodist le bonheur healthcare, in partnership with its medical staffs, will collaborate with patients and their families to be the leader in providing high quality, cost-effective patient-and family-centered care. services will be…

Health
8
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
9
Cedars-Sinai Medical Center

As a leading academic healthcare organization, our mission is to elevate the health status of the communities we serve.(see schedule o for continuation)(continued)-we deliver exceptional healthcare enhanced by research and education-we…

Health
10
Truman Medical Center Incorporated

University health is an academic health center providing accessible, state-of-the-art quality healthcare to our community regardless of the ability to pay.

Health
11
Children's Hospital & Research Center At Oakland

The mission of children's hospital & research center at oakland is to protect and advance the health and well-being of children through clinical care, teaching and research.

Health
12
Thomas Jefferson University

Thomas jefferson university ("tju") is a comprehensive university with preeminence in transdisciplinary, experiential professional education, research and discovery, delivering exceptional value for the 21st century students with…

Education
How this is measured
The grantee most central to the portfolio’s shape is Medical University of South Carolina Foundation; the most unlike its peers is University of Michigan. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

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

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 12 of the 33 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

1
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
12/12
Grantees still filing
12/12
Grew since first funded

Where the money sits, by cause and then by grantee

AHA: $1,462,882 · OtherAHACHILDREN'S HOSPITAL AT VANDERBILT U: $521,974 · OtherCHILDREN'S HOSPITAL AT VANDERBILT UREGENTS OF THE UNIVERSITY OF COLORADO: $433,198 · OtherREGENTS OF THE UNIVERSITY OF COLORADOCHILDRENS HEALTHCARE OF ATLANTA INC: $400,000 · OtherCHILDRENS HEALTHCARE OF ATLANTA INCEMORY UNIVERSITY - DAVIS: $254,000 · OtherMEMORIAL HEALTHCARE SYSTEM: $251,468 · OtherUniversity of Michigan: $232,717 · Other+15 more: $1,240,041 · Other+15 moreTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $1,290,556 · EducationTHE BOARD OF TRUSTEES OF THE LEL…Baylor College of Medicine: $825,000 · EducationBaylor College of MedicineCASE WESTERN RESERVE UNIVERSITY: $299,818 · EducationCASE WESTERN RESERVE UNIVERSITYINOVA HEALTH CARE SERVICES: $397,594 · HealthINOVA HEALTH CA…Vanderbilt University Medical Center: $199,467 · HealthVanderbilt Univ…GEORGIA TECH RESEARCH CORPORATION: $179,995 · HealthGEORGIA TECH RE…MEDICAL UNIVERSITY OF SOUTH CAROLINA FOUNDATION: $119,292 · HealthMEDICAL UNIVERS…American Heart Association Inc: $108,017 · HealthAmerican Heart …THE CHILDREN'S HOSPITAL OF PHILADELPHIA: $93,379 · HealthTHE CHILDREN'S …CHILDREN'S HOSPITAL OF WISCONSIN INC: $74,915 · HealthCHILDREN'S HOSP…+1 more: $5,500 · Health
Other$4,796,280Education$2,415,374Health$1,178,159

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $1,290,556 over 5y, 0.0% of budgetBaylor College of Medicine: $825,000 over 4y, 0.0% of budgetINOVA HEALTH CARE SERVICES: $397,594 over 2y, 0.0% of budgetCASE WESTERN RESERVE UNIVERSITY: $299,818 over 1y, 0.0% of budgetUniversity of Michigan: $232,717 over 1y, 88% of budgetVanderbilt University Medical Center: $199,467 over 1y, 0.0% of budgetGEORGIA TECH RESEARCH CORPORATION: $179,995 over 1y, 0.1% of budgetMEDICAL UNIVERSITY OF SOUTH CAROLINA FOUNDATION: $119,292 over 1y, 0.2% of budgetAmerican Heart Association Inc: $108,017 over 1y, 0.0% of budgetTHE CHILDREN'S HOSPITAL OF PHILADELPHIA: $93,379 over 1y, 0.0% of budgetCHILDREN'S HOSPITAL OF WISCONSIN INC: $74,915 over 1y, 0.0% of budgetChildren's Hospital Corporation: $5,500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

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

  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
  • Who funds Baylor College of Medicine ↗
  • Who funds INOVA HEALTH CARE SERVICES ↗
  • Who funds CASE WESTERN RESERVE UNIVERSITY ↗
  • Who funds University of Michigan ↗
  • Who funds Vanderbilt University Medical Center ↗
  • Who funds GEORGIA TECH RESEARCH CORPORATION ↗
  • Who funds MEDICAL UNIVERSITY OF SOUTH CAROLINA FOUNDATION ↗
  • Who funds American Heart Association Inc ↗
  • Who funds THE CHILDREN'S HOSPITAL OF PHILADELPHIA ↗
  • Who funds CHILDREN'S HOSPITAL OF WISCONSIN INC ↗
  • Who funds Children's Hospital Corporation ↗

How much its grantees rely on government

Each dot is one organization Enduring Hearts Inc funds: left to right is the share of its income from government, bottom to top the share from Enduring Hearts Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%6%23%51%90%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 10%
  • Children's Hospital Corporation: 10% of income from government
no gov moneyreceives it· size = income
0get no government money at all
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 33 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its 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.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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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