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Rathmann Family Foundation at a glance

· Private foundation

Rathmann Family Foundation

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.

$2.3M
Granted FY2025still arriving
17
Grants FY2025still arriving
8
States reached
$833k
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, FY2018 to 2024.

Philanthropy$30MScience & Tech$4.4MEnvironment$2.1MRecreation & Sports$1.4MEducation$1.2MFood & Nutrition$665kHuman Services$450kArts & Culture$426kOther$0
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k5 grants · $110k
  • $50k–250k9 grants · $775k
  • $250k+3 grants · $1.4M
$50,000
Median grant
8
States reached
$40M
Total assets
Largest grants
RecipientAmount
NATIONAL SCIENCE AND TECHNOLOGY$833,000
AFRICAN PARKS FOUNDATION OF AMERICA$300,000
AFRICAN PARKS FOUNDATION OF AMERICA$250,000
NATIONAL SCIENCE AND TECHNOLOGY$240,000
BUZZARDS BAY COALITION INC$100,000
HUERTA DEL VALLE$100,000
CENTER FOR HEIRS$75,000
HAVERFORD COLLEGE$60,000
NATIONAL AUDUBON SOCIETY INC$50,000
TRUSTEES OF TRINITY COLLEGE$50,000
VOLUNTEERS OF LEGAL SERVICE$50,000
TRUSTEES OF TRINITY COLLEGE$50,000
GNOME INC$35,000
ARTIS - NAPLES INC$25,000
POTOMAC RIVER CLINIC$20,000
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:

Its human-services grants (FY18–23, $180k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%END RAPE ON CAMPUS INC: $30k → 14%INNOCENCE PROJECT INC: $20k → 17%INNOCENCE PROJECT INC: $20k → 17%DHARMA VOYAGE INC: $25k → 11%DHARMA VOYAGE INC: $25k → 11%DHARMA VOYAGE INC: $15k → 11%DHARMA VOYAGE INC: $15k → 11%DHARMA VOYAGE INC: $15k → 11%DHARMA VOYAGE INC: $15k → 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
IL
NY
MA
OR
PA
CT
RI
CA
UT
CO
VA
MD
AZ
NC
SC
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.
03Its grantees
repeat funding

Who it funds again

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

37%of every dollar goes to organizations it has funded before.
$12M · 20 repeat orgs$21M to everyone else

Grantees it renews have grown median revenue +59% since the first grant, against +35% for those funded once.

20 repeat relationships: 12 still active in FY2025, 8 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

20
30

Total granted

$12M
$21M

Median revenue growth · since first grant

+59%
+35%

Still filing today

85%
70%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $20k went to new ones.

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

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

’18’19’20’21’22’23’24’25
Arts & CultureEducationHealthAnimalsInternationalHuman ServicesOther
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

  • AP
    AFRICAN PARKS FOUNDATION OF AMERICA
    8× · 2018–2025 · $2.0M · revenue +181%
  • BUZZARDS BAY COALITION
    7× · 2018–2025 · $1.6M · revenue +83%
  • HD
    HUERTA DEL VALLE
    8× · 2018–2025 · $765k · revenue +8% · 28% of their budget

Funded once

  • JI
    JOY IN BLUE FOUNDATIONgraduated
    one grant, 2018 · $20M · revenue +115%
  • NS
    NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION INCgraduated
    one grant, 2018 · $240k · revenue +229% · 40% of their budget
  • CF
    CENTER FOR ECOTECHNOLOGY INCgraduated
    one grant, 2018 · $200k · revenue +71%
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
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
2
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
3
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
4
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
5
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
6
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
7
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
8
The American College of Trust and Estate Counsel

Enhance the ability of actec members to provide the most efficient and highest quality services to their clients; develop qualified trust and estate counselors; improve and reform probate, trust and tax laws, procedures, and standards of…

Community Improvement
9
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
10
Trustees of Dartmouth College

Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.

Education
11
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
12
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is African Parks Foundation of America; the most unlike its peers is Joy in Blue 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

44 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 44 of the 54 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.

3
Load-bearing (≥25% of a budget)
11
Early backer (in before they grew)
42/44
Grantees still filing
34/44
Grew since first funded

Where the money sits, by cause and then by grantee

JOY IN BLUE FOUNDATION: $19,841,197 · PhilanthropyJOY IN BLUE FOUNDATIONGS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC: $9,972,174 · PhilanthropyGS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INCNATIONAL SCIENCE AND TECHNOLOGY: $5,200,000 · OtherNATIONAL SCIENCE AND…NATIONAL AUDUBON SOCIETY INC: $478,000 · OtherNATIONAL AUDUBON SOC…CENTER FOR HEIRS: $360,000 · OtherVOLUNTEERS OF LEGAL SERVICE INC: $320,000 · Other+32 more: $1,447,000 · Other+32 moreAFRICAN PARKS FOUNDATION OF AMERICA: $1,995,000 · Recreation & SportsBUZZARDS BAY COALITION: $1,575,000 · EnvironmentCENTER FOR ECOTECHNOLOGY INC: $200,000 · EnvironmentTRINITY COLLEGE: $660,000 · EducationCORPORATION OF HAVERFORD COLLEGE: $355,000 · EducationDUKE UNIVERSITY: $50,000 · Education+4 more: $65,000 · EducationHUERTA DEL VALLE: $765,000 · Food & NutritionGNOME INC: $155,000 · HealthPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $120,000 · HealthPARTNERS IN HEALTH A NONPROFIT CORPORATION: $50,000 · HealthHILARITY FOR CHARITY INC: $20,000 · Health+1 more: $10,000 · Health
Philanthropy$29,813,371Other$7,805,000Recreation & Sports$1,995,000Environment$1,775,000Education$1,130,000Food & Nutrition$765,000Health$355,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetGS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC: $9,972,174 over 1y, 0.8% of budgetAFRICAN PARKS FOUNDATION OF AMERICA: $1,995,000 over 8y, 1.2% of budgetBUZZARDS BAY COALITION: $1,575,000 over 7y, 7.5% of budgetHUERTA DEL VALLE: $765,000 over 8y, 28% of budgetTRINITY COLLEGE: $660,000 over 8y, 0.1% of budgetCORPORATION OF HAVERFORD COLLEGE: $355,000 over 7y, 0.0% of budgetVOLUNTEERS OF LEGAL SERVICE INC: $320,000 over 8y, 8.8% of budgetNATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION INC: $240,000 over 1y, 40% of budgetCENTER FOR ECOTECHNOLOGY INC: $200,000 over 1y, 3.2% of budgetARTIS-NAPLES INC: $200,000 over 8y, 0.1% of budgetBROWN UNIVERSITY: $160,500 over 6y, 0.0% of budgetGNOME INC: $155,000 over 5y, 6.3% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $120,000 over 2y, 0.0% of budgetDHARMA VOYAGE INC: $110,000 over 6y, 18% of budgetWESTPORT HISTORICAL SOCIETY INC: $105,000 over 8y, 4.9% of budgetPARTNERS IN HEALTH A NONPROFIT CORPORATION: $50,000 over 1y, 0.0% of budgetDUKE UNIVERSITY: $50,000 over 1y, 0.0% of budgetNEW BEDFORD LIGHT: $45,000 over 3y, 0.8% of budgetTHE INNOCENCE PROJECT INC: $40,000 over 2y, 0.1% of budgetMEDECINS SANS FRONTIERES USA INC: $30,000 over 2y, 0.0% of budgetCITY DOGS RESCUE INC: $30,000 over 2y, 2.2% of budgetEND RAPE ON CAMPUS: $30,000 over 1y, 2.7% of budgetHILARITY FOR CHARITY INC: $20,000 over 2y, 0.9% of budgetFor Alison Foundation: $20,000 over 1y, 83% of budgetTHE DAVID SHELDRICK WILDLIFE TRUST USA INC: $20,000 over 2y, 0.2% of budgetMATH FOR AMERICA: $20,000 over 1y, 0.1% of budgetNavy Special Operations Foundation: $20,000 over 1y, 7.6% of budgetPotomac River Clinic: $20,000 over 1y, 3.1% of budgetUpward Scholars: $20,000 over 1y, 4.3% of budgetACHIEVE TWIN CITIES: $17,000 over 1y, 0.5% of budgetMercy Corps: $15,000 over 1y, 0.0% of budgetINTERNATIONAL MEDICAL CORPS: $15,000 over 1y, 0.0% of budgetBEST FRIENDS ANIMAL SOCIETY: $10,000 over 2y, 0.0% of budgetGREAT RIVER GREENING: $10,000 over 1y, 0.4% of budgetMACPHAIL CENTER FOR MUSIC: $10,000 over 1y, 0.1% of budgetPRO PUBLICA INC: $10,000 over 1y, 0.0% of budgetTHE HISTORY THEATRE INC: $10,000 over 1y, 0.4% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC: $10,000 over 1y, 0.0% of budgetThe Minnesota Opera: $6,000 over 1y, 0.1% of budgetThe Advocates For Human Rights: $5,000 over 1y, 0.3% of budgetCLEMSON UNIVERSITY FOUNDATION: $5,000 over 1y, 0.0% of budgetFARM SANCTUARY INC: $3,000 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.

Joy in Blue FoundationHardenbergh FoundationSouthcoast Community …Fr Bigelow FoundationMightycause Charitabl…Xcel Energy FoundationThe Blackbaud Giving …ImpactassetsincNational Philanthropi…Vanguard Charitable E…Charities Aid Foundat…Gs Donor Advised Phil…
Joy in Blue FoundationAZ15.7× affinity5 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Joy in Blue Foundation · Hardenbergh Foundation · Southcoast Community Foundation Inc · Fr Bigelow Foundation · Mightycause Charitable Foundation · Xcel Energy Foundation · The Blackbaud Giving Fund · Impactassetsinc · National Philanthropic Trust · Vanguard Charitable Endowment Program · Charities Aid Foundation America · Gs Donor Advised Philanthropy Fund for Wealth Management Inc

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 Rathmann Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Rathmann Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%2%8%17%30%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 4%
  • Mercy Corps: 47% of income from government
  • Buzzards Bay Coalition: 37% of income from government
  • Center for Ecotechnology Inc: 9% of income from government
  • Gnome Inc: 4% of income from government
  • Westport Historical Society Inc: 1% of income from government
  • Trinity College: 0% of income from government
  • Partners in Health a Nonprofit Corporation: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
9report government grants on their 990 we could not trace to a source (not plotted)
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Rathmann Family Foundation?

Find your warmest path to Rathmann Family Foundation 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 54 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 Rathmann Family’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