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The Gordon and Marilyn Macklin Foundation Inc at a glance

· Private foundation

The Gordon and Marilyn Macklin Foundation Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2.8M
Granted FY2025still arriving
2
Grants FY2025still arriving
2
States reached
$2.2M
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 2025.

Health$12MEducation$4.6MInternational$569kHuman Services$400kRecreation & Sports$10k
02FY2025 · 2 grants

Where the money goes

Grants by size, and the largest recipients.

$2,223,000
Median grant
2
States reached
$14M
Total assets
Largest grants
RecipientAmount
JOHNS HOPKINS ATAXIA CENTER$2,223,000
MEDSTAR NATIONAL REHABILITATION HOSPITAL$561,103
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 14%, against an area that typically sits at 9%. 90% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%KAWASAKI DISEASE FOUNDATION: $10k → 10%THE NATIONAL ATAXIA FOUNDATION: $612k → 11%LITTLE LEAGUE BASEBALL INC: $10k → 12%RADY CHILDRENS HOSPITAL FOUNDATION: $1.4M → 11%WORLDWIDE ORPHANS FOUNDATION: $300k → 17%MEDSTAR NATIONAL REHABILITATION HOSPITAL: $561k → 14%SELECTIVE MUTISM ASSOCIATION: $68k → 11%SELECTIVE MUTISM ASSOCIATION: $244k → 13%YALE UNIVERSITY: $300k → 12%LIFT ME UP INC: $63k → 6%CENTER FOR ADOPTION SUPPORT AND EDUCATION: $400k → 8%JOHNS HOPKINS ATAXIA CENTER: $2.2M → 19%THE NATIONAL ATAXIA FOUNDATION: $450k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $1.0M → 11%WORLDWIDE ORPHANS FOUNDATION: $269k → 17%MEDSTAR NATIONAL REHABILIATION HOSPITAL: $431k → 14%SELECTIVE MUTISM ASSOCIATION: $50k → 11%MONTGOMERY COLLEGE FOUNDATION: $1.2M → 8%JOHNS HOPKINS UNIVERSITY: $1.6M → 19%THE NATIONAL ATAXIA FOUNDATION: $316k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $1.0M → 11%MEDSTAR NATIONAL REHABILITATION NETWORK: $247k → 14%JOHNS HOPKINS UNIVERSITY: $613k → 19%THE NATIONAL ATAXIA FOUNDATION: $158k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $862k → 11%MEDSTAR NATIONAL REHABILIATION HOSPITAL: $135k → 14%JOHNS HOPKINS UNIVERSITY: $449k → 19%THE NATIONAL ATAXIA FOUNDATION: $100k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $611k → 11%MEDSTAR NATIONAL REHABILITATION NETWORK: $120k → 14%JOHNS HOPKINS UNIVERSITY: $250k → 19%THE NATIONAL ATAXIA FOUNDATION: $35k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $463k → 11%MEDSTAR HEALTH INC: $50k → 14%JOHNS HOPKINS UNIVERSITY: $250k → 19%RADY CHILDRENS HOSPITAL FOUNDATION: $200k → 11%MEDSTAR NATIONAL REHABILITATION HOSPITAL: $48k → 14%RADY CHILDRENS HOSPITAL FOUNDATION: $115k → 11%RADY CHILDRENS HOSPITAL FOUNDATION: $100k → 11%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

MN
NY
MA
PA
CT
CA
VA
MD
DC
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.
04

Where the work is directed

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

About 36% of The Gordon and Marilyn Macklin Foundation Inc’s grant dollars are earmarked for a different county than the recipient’s own address.

The Gordon and Marilyn Macklin Foundation Inclessmore of its giving
Placed by recipient address · 36% directed abroad (not shown)
How this is measured
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 funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

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

71%of every dollar goes to organizations it has funded before.
$13M · 7 repeat orgs$5.0M to everyone else

Grantees it renews have grown median revenue +64% since the first grant, against +20% for those funded once.

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

How the two cohorts compare

Re-uppedFunded once

Organizations

7
9

Total granted

$13M
$2.8M

Median revenue growth · since first grant

+64%
+20%

Still filing today

86%
67%

New vs renewed · share of each year

In FY2025, 20% of grant dollars renewed an existing relationship; $2.2M 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
EducationHealthPhilanthropySocial ScienceOther
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

  • JOHNS HOPKINS UNIVERSITY
    4× · 2017–2020 · $3.2M · revenue +64%
  • NA
    National Ataxia Foundation Incorporated
    5× · 2018–2023 · $1.7M · revenue +408%
  • NR
    NATIONAL REHABILITATION HOSPITAL
    2× · 2019–2025 · $609k · revenue +21%

Funded once

  • MC
    MONTGOMERY COLLEGE FOUNDATION
    one grant, 2019 · $1.2M · revenue +20%
  • MN
    MEDSTAR NATIONAL REHABILIATION HOSPITAL
    one grant, 2021 · $566k
  • CF
    CENTER FOR ADOPTION SUPPORT AND EDUCATION INCgraduated
    one grant, 2022 · $400k · revenue +103%
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
Hugo W Moser Research Institute At Kennedy Krieger Inc

The hugo w. moser research institute at kennedy krieger, inc. (the "research institute") is an internationally recognized research facility finding answers to problems and injuries that affect a child's developing brain. researchers have…

Science & Tech
2
Medstar Health Research Institute Inc

See schedule omedstar health research institute is dedicated to supporting the academic platform of medstar health by conducting high quality translational and health sciences research throughout the medstar system.

—
3
Medical Faculty Associates Inc

Medical faculty associates has three main missions; education, to teach the medical students and train residents of the george washington university; research, to conduct medical research on behalf of the george washington university…

Health
4
Children's Research Institute

Children's research institute dba children's national research institute conducts and promotes translational and clinical medical research and education programs that lead to improved understanding, prevention, treatment, and care of…

Health
5
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
6
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
7
Morehouse School of Medicine

Leading the creation and advancement of health equity we exist to improve the health and well-being of individuals and communities, increase the diversity of the health professional and scientific workforce, and address primary health care…

Education
8
The Medstar-Georgetown Medical Center Inc

See schedule oas a proud member of medstar health, medstar georgetown university hospital's (medstar georgetown) mission is to provide physical and spiritual comfort to our patients and their families in the jesuit tradition of cura…

Health
9
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
10
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
11
Musc Strategic Ventures

To promote and support the educational, medical, scientific, and research purposes of the medical university of south carolina "musc", and university medical associates of the medical university of south carolina "uma", including their…

Health
12
Johns Hopkins Health System Corporation

Johns hopkins health system corporation provides centralized management of a multi-hospital healthcare system. it is a key component of johns hopkins medicine, a collaboration with the johns hopkins university school of medicine.

Health
How this is measured
The grantee most central to the portfolio’s shape is National Rehabilitation Hospital; the most unlike its peers is National Ataxia Foundation Incorporated. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the 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 17 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)
2
Early backer (in before they grew)
12/12
Grantees still filing
9/12
Grew since first funded

Where the money sits, by cause and then by grantee

RADY CHILDREN'S HOSPITAL FOUNDATION SAN DIEGO: $5,752,724 · PhilanthropyRADY CHILDREN'S HOSPITAL FOUNDATION S…JOHNS HOPKINS ATAXIA CENTER: $2,223,000 · OtherJOHNS HOPKINS ATAXIA CENTERNational Ataxia Foundation Incorporated: $1,670,043 · OtherNational Ataxia Foundation Incorp…MEDSTAR NATIONAL REHABILIATION HOSPITAL: $566,053 · OtherMEDSTAR NATIONAL REHABILIATION HO…MEDSTAR NATIONAL REHABILITATION NETWORK: $367,250 · OtherMEDSTAR NATIONAL REHABILITATION N…YALE UNIVERSITY: $300,000 · OtherYALE UNIVERSITY+2 more: $72,657 · OtherJOHNS HOPKINS UNIVERSITY: $3,189,000 · EducationJOHNS HOPKINS UNIVERSITYMONTGOMERY COLLEGE FOUNDATION: $1,220,000 · EducationMONTGOMERY COLLEGE FOUNDATIONWORLDWIDE ORPHANS FOUNDATION: $568,783 · EducationWORLDWIDE ORPHANS FOUNDATIONFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $177,379 · EducationNATIONAL REHABILITATION HOSPITAL: $609,103 · HealthCENTER FOR ADOPTION SUPPORT AND EDUCATION INC: $400,000 · HealthMEDSTAR HEALTH INC: $50,000 · Health+1 more: $10,000 · HealthSELECTIVE MUTISM ASSOCIATION: $362,000 · Social Science
Philanthropy$5,752,724Other$5,199,003Education$5,155,162Health$1,069,103Social Science$362,000

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 budgetRADY CHILDREN'S HOSPITAL FOUNDATION SAN DIEGO: $5,752,724 over 5y, 3.8% of budgetJOHNS HOPKINS UNIVERSITY: $3,189,000 over 4y, 0.0% of budgetNational Ataxia Foundation Incorporated: $1,670,043 over 5y, 15% of budgetMONTGOMERY COLLEGE FOUNDATION: $1,220,000 over 1y, 15% of budgetNATIONAL REHABILITATION HOSPITAL: $609,103 over 2y, 0.3% of budgetWORLDWIDE ORPHANS FOUNDATION: $568,783 over 2y, 18% of budgetCENTER FOR ADOPTION SUPPORT AND EDUCATION INC: $400,000 over 1y, 6.9% of budgetSELECTIVE MUTISM ASSOCIATION: $362,000 over 3y, 74% of budgetFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $177,379 over 1y, 0.3% of budgetLIFT ME UP INC: $62,657 over 1y, 10% of budgetMEDSTAR HEALTH INC: $50,000 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.

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.

The Pfizer Foundation…Morgan Stanley Global…The Bank of America C…Vanguard Charitable E…American Online Givin…Natl Christian Charit…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
The Pfizer Foundation IncNY10.2× affinity4 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Natl Christian Charitable Fdn Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 The Gordon and Marilyn Macklin Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Gordon and Marilyn Macklin Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%5%19%42%75%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 23%
  • Center for Adoption Support and Education Inc: 51% of income from government
  • Medstar Health Inc: 23% of income from government
  • Johns Hopkins University: 12% of income from government
no gov moneyreceives it· size = income
3get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–75%
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 17 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-PF 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 Gordon and Marilyn Macklin’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