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Massachusetts · Public charity

Children's Orthopaedic Surgery Foundatio

The Foundation provides orthopaedic surgery services to patients at Boston Children's Hospital and at satellite locations. The mission strives to provide care for patients with a wide range of developmental, congenital, neuromuscular, and post (see Schedule O) traumatic problems of the musculoskeletal system. The Foundation also provides…

$6.1M
Granted FY2025(still arriving)
2
Grants FY2025
6
Organizations funded FY2024
17%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$6,017,500
Largest grant, FY2025
$6,017,500
Organizations funded a year
3 to 9
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$129M

How open it is to new grantees

In FY2024, 17% of the organizations Children's Orthopaedic Surgery Foundatio 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; $7k went to new ones.

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

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

’20’21’22’23’24
HealthInternationalCivil RightsHuman ServicesArts & Culture
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 arriving2$6.1M0%
FY20246$26M17%
FY20233$6.8M0%
FY20229$126k33%
FY20218$585k38%
FY20206$203k50%
FY20187$280kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

Health$34MInternational$33kEducation$25kCivil Rights$10kArts & Culture$5kHuman Services$5k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MN
IL
WI
NY
MA
PA
CA
UT
MD

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 17 grantees

Where it is load-bearing

Each grantee by its size and the share of its budget Children's Orthopaedic Surgery Foundatio supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetChildren's Hospital Corporation: $39,693,501 over 8y, 0.8% of budgetOrthopaedic Research and Education Foundation: $221,500 over 8y, 0.9% of budgetSetting Scoliosis Straight Foundation: $35,128 over 4y, 0.7% of budgetOne World Surgery: $32,500 over 3y, 0.1% of budgetPediatric Spine Foundation: $31,000 over 3y, 1.5% of budgetArthritis Foundation Inc: $30,500 over 1y, 0.1% of budgetPediatric Orthopaedic Society of North America: $28,850 over 5y, 0.3% of budgetOsteogenesis Imperfecta Foundation: $20,003 over 4y, 0.4% of budgetLittle People of America Inc: $10,000 over 3y, 1.5% of budgetOrthopaedic Research Society: $7,400 over 1y, 0.2% of budgetGrowing Spine Foundation: $6,295 over 1y, 0.6% of budgetFamilies of Spinal Muscular Atrophy Dba Cure Sma: $6,000 over 1y, 0.1% of budgetThe Children's Hospital of Philadelphia Foundation: $5,000 over 1y, 0.0% of budgetThe Childrens Room Center for Grieving Children: $5,000 over 1y, 0.3% of budgetBoston Ballet Inc: $5,000 over 1y, 0.0% of budgetAmerican Brain Foundation: $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 16.

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 tightly interlocked group: most of these funders back each other's grantees too.

American Endowment FoundationOH10× affinity5 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Endowment Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Natl Christian Charitable Fdn Inc · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · 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 Children's Orthopaedic Surgery Foundatio with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Children's Orthopaedic Surgery Foundatio?

Find your warmest path to Children's Orthopaedic Surgery Foundatio 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 Children's Orthopaedic Surgery Foundatio

How much does Children's Orthopaedic Surgery Foundatio give?
Children's Orthopaedic Surgery Foundatio reported 2 grants totaling $6,095,999 in its FY2025 IRS filing. It funded between 3 and 9 organizations a year over FY2018 to FY2024.
What does Children's Orthopaedic Surgery Foundatio fund?
By grant dollars over FY2018 to FY2025, its largest causes are Health (100%), International (0%), Education (0%).
Who are Children's Orthopaedic Surgery Foundatio's largest grantees?
By total granted over FY2018 to FY2025: Children's Hospital Corporation ($40M), Orthopaedic Research and Education Foundation ($222k), Setting Scoliosis Straight Foundation ($35k).
Does Children's Orthopaedic Surgery Foundatio fund new organizations?
In FY2024, 17% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Children's Orthopaedic Surgery Foundatio?
Its strongest co-funders, measured against what their size predicts, include American Endowment Foundation, Vanguard Charitable Endowment Program, National Philanthropic Trust.
Where is Children's Orthopaedic Surgery Foundatio based?
Children's Orthopaedic Surgery Foundatio 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 18 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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