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Massachusetts · Public charity

Chmc Cardiovascular Surgical Foundation Inc

The foundation provides cardiovascular services primarily to patients at boston children's hospital and at satellite locations. The foundation carries on and promotes basic and applied medical research and education in the field of cardiovascular surgery (see schedule o) by teaching students and other medical and scientific personnel.…

$4.3M
Granted FY2025(still arriving)
3
Grants FY2025
3
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$75,000
Largest grant, FY2025
$4,252,904
Organizations funded a year
2 to 5
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$55M

How open it is to new grantees

In FY2024, 0% of the organizations Chmc Cardiovascular Surgical Foundation Inc funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’18’19’20’21’22’23’24
HealthHousing & ShelterOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving3$4.3M33%
FY20243$205k0%
FY20234$681k0%
FY20223$586k33%
FY20212$1.5M0%
FY20202$1.0M50%
FY20193$826k33%
FY20185$1.8M80%
100% 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

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Where it is load-bearing

Each grantee by its size and the share of its budget Chmc Cardiovascular Surgical Foundation Inc supplied at peak.

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

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 8.

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 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.

Compare Chmc Cardiovascular Surgical Foundation Inc with peer funders

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.

About Chmc Cardiovascular Surgical Foundation Inc

How much does Chmc Cardiovascular Surgical Foundation Inc give?
Chmc Cardiovascular Surgical Foundation Inc reported 3 grants totaling $4,346,104 in its FY2025 IRS filing. It funded between 2 and 5 organizations a year over FY2018 to FY2024.
What does Chmc Cardiovascular Surgical Foundation Inc fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (96%), Housing & Shelter (4%).
Who are Chmc Cardiovascular Surgical Foundation Inc's largest grantees?
By total granted over FY2017 to FY2025: Children's Hospital Corporation ($15M), Hospitality Homes Inc ($475k), American Association for Thoracic Surgery ($51k).
Does Chmc Cardiovascular Surgical Foundation Inc fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Chmc Cardiovascular Surgical Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Amazonsmile Foundation.
Where is Chmc Cardiovascular Surgical Foundation Inc based?
Chmc Cardiovascular Surgical Foundation Inc is based in MA.

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

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