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Chmc Cardiovascular Surgical Foundation Inc at a glance

· Public charity

Chmc Cardiovascular Surgical Foundation Inc

The foundation provides cardiovascular services primarily to patients at boston children's hospital and at satellite locations.

$4.3M
Granted FY2025still arriving
3
Grants FY2025still arriving
2
States reached
$4.3M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
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$10MHousing & Shelter$400k
02FY2025 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k1 grant · $15k
  • $50k–250k1 grant · $75k
  • $250k+1 grant · $4.3M
$75,000
Median grant
2
States reached
$55M
Total assets
Largest grants
RecipientAmount
BOSTON CHILDREN'S HOSPITAL$4,252,904
HOSPITALITY HOMES$75,000
ADDITIONAL VENTURES FOUNDATION$15,000
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 16%, against an area that typically sits at 9%. 100% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%AATS Graham Foundation: $30k → 10%BOSTON CHILDREN'S HOSPITAL: $4.3M → 16%ADDITIONAL VENTURES FOUNDATION: $15k → 10%The Marfan Foundation: $5k → 6%American Heart Association: $23k → 14%Ethan M Lindberg Foundation: $5k → 9%American Assoc for Thoracic Surgery: $26k → 10%Boston Children's Hospital: $4.2M → 16%American Heart Association: $8k → 14%Ethan M Lindberg Foundation: $5k → 9%American Assoc for Thoracic Surgery: $25k → 10%Boston Children's Hospital: $1.7M → 16%American Heart Association: $8k → 14%Boston Children's Hospital: $1.4M → 16%Boston Children's Hospital: $964k → 16%Boston Children's Hospital: $816k → 16%Boston Children's Hospital: $574k → 16%Boston Children's Hospital: $460k → 16%Boston Children's Hospital: $123k → 16%Hospitality Homes: $100k → 16%Hospitality Homes: $75k → 16%Hospitality Homes: $75k → 16%Hospitality Homes: $75k → 16%Hospitality Homes: $75k → 16%HOSPITALITY HOMES: $75k → 16%Boston Children's Heart Foundation: $5k → 16%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.
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.

100%of every dollar goes to organizations it has funded before.
$15M · 5 repeat orgs$55k to everyone else

5 repeat relationships: 2 still active in FY2025, 3 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
3

Total granted

$15M
$40k

Median revenue growth · since first grant

+26%
+67%

Still filing today

100%
100%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $15k 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
HealthHousing & ShelterPhilanthropyOther
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

  • CH
    Children's Hospital Corporation
    9× · 2017–2025 · $15M · revenue +91%
  • Hospitality Homes Inc
    6× · 2020–2025 · $475k · revenue +122%
  • AA
    AMERICAN ASSOCIATION FOR THORACIC SURGERY
    2× · 2022–2023 · $51k · revenue +22%

Funded once

  • AF
    AATS FOUNDATIONgraduated
    one grant, 2018 · $30k · revenue +42%
  • BC
    Boston Children's Heart Foundation Incgraduated
    one grant, 2019 · $5k · revenue +67%
  • TM
    THE MARFAN FOUNDATION INCgraduated
    one grant, 2018 · $5k · revenue +79%
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
The Cardiovascular Medical Research and Education Fund Inc
—
2
Foundation for Cardiovascular Research and Innovations
Philanthropy
3
Children's Hospital Colorado

To improve the health of children through the provision of high-quality, coordinated programs of patient care, education, research and advocacy.

Health
4
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
5
Cardinal Health Foundation
Education
6
Hartford Hospital

To improve the health and healing of the people and communities we serve.

Health
7
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
8
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
9
Dana-Farber Children's Hospital Cancer Care Inc

To oversee, coordinate and support the Pediatric Oncology Programs at Boston Children's Hospital and Dana-Farber Cancer Institute, Inc.

Health
10
Cardiac Surgery Research & Education Fou
Health
11
The Heart Foundation

The heart foundation (thf) was created to save lives from heart disease by increasing awareness, educating the public, and supporting innovative research at smidt heart institute at cedars-sinai medical center in los angeles, california.…

Philanthropy
12
Phoenix Children's Hospital Foundation

Phoenix children's hospital foundation supports phoenix children's hospital through fundraising ensuring that the hospital continues to stay on the leading edge of pediatric medicine and is equipped to fulfill its mission to advance hope,…

Health
How this is measured
The grantee most central to the portfolio’s shape is Boston Children's Heart Foundation Inc; the most unlike its peers is Additional Ventures Foundation. 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

9 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.

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

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
9/9
Grantees still filing
7/9
Grew since first funded

Where the money sits, by cause and then by grantee

Children's Hospital Corporation: $14,573,424 · HealthChildren's Hospital Corporation+4 more: $82,500 · HealthHospitality Homes Inc: $475,000 · Housing & ShelterAMERICAN ASSOCIATION FOR THORACIC SURGERY: $50,700 · OtherTHE MARFAN FOUNDATION INC: $5,000 · OtherADDITIONAL VENTURES FOUNDATION: $15,000 · Philanthropy
Health$14,655,924Housing & Shelter$475,000Other$55,700Philanthropy$15,000

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 budgetChildren's Hospital Corporation: $14,573,424 over 9y, 0.2% of budgetHospitality Homes Inc: $475,000 over 6y, 9.8% of budgetAMERICAN ASSOCIATION FOR THORACIC SURGERY: $50,700 over 2y, 0.3% of budgetAmerican Heart Association Inc: $37,500 over 3y, 0.0% of budgetAATS FOUNDATION: $30,000 over 1y, 1.5% of budgetETHAN LINDBERG FOUNDATION INC: $10,000 over 2y, 1.8% of budgetBoston Children's Heart Foundation Inc: $5,000 over 1y, 0.0% of budgetTHE MARFAN FOUNDATION INC: $5,000 over 1y, 0.1% 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.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a set of overlaps that mostly run through this funder rather than between each other.

Amazonsmile Foundation
Amazonsmile FoundationWA2.7× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →median 10%
  • Children's Hospital Corporation: 10% of income from government
  • Boston Children's Heart Foundation Inc: 1% of income from government
no gov moneyreceives it· size = income
1get no government money at all
0rely on government for over half their income
⤢ axis zoomed · 0–15%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Chmc Cardiovascular Surgical Foundation Inc?

Find your warmest path to Chmc Cardiovascular Surgical Foundation Inc 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 from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 9 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

Play a game based on Chmc Cardiovascular Surgical’s filings →

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