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Plinth

· Private foundation

The Irwin Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$70k
Granted FY2024still arriving
4
Grants FY2024still arriving
3
States reached
$18k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172024.

Human Services$230kInternational$168kFood & Nutrition$132kHealth$122kCivil Rights$93kArts & Culture$25kPublic Safety & Disaster$11kSocial Science$1k
02FY2024 · 4 grants

Where the money goes

Your grants by size, and where they go.

$17,500
Median grant
3
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
ACLU OF SAN DIEGO$17,500
ALZHEIMER'S SAN DIEGO$17,500
PLANNED PARENTHOOD FEDERATION$17,500
THE ROSALYNN CARTER INSTITUTE FOR CAREGIVERS$17,500
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Your human-services grants (FY24–24, $18k) land where the poverty rate runs at 22%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%THE ROSALYNN CARTER INSTITUTE FOR CAREGIVERS: $18k → 22%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

NY
IA
OH
CT
CA
CO
MD
GA
FL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

04

Where the work is directed

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

About 9% of The Irwin Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.

The Irwin Foundationlessmore of its giving
Placed by recipient address

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 foundation’s own 990 grant descriptions.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

81%of every dollar goes to organizations you’ve funded before.
$632k · 7 repeat orgs$150k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +47% since the first grant, against +21% for the ones you funded once.

7 repeat relationships — 3 still active in FY2024, 4 since wound down; 1 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

7
10

Total granted

$632k
$132k

Median revenue growth · since first grant

+47%
+21%

Still filing today

71%
80%

New vs renewed · share of each year

In FY2024, 75% of grant dollars renewed an existing relationship; $18k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
HealthInternationalFood & NutritionHuman ServicesCivil RightsArts & CultureOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • MEDECINS SANS FRONTIERES USA INC
    4× · 2017–2021 · $107k · revenue +98%
  • JC
    JACOBS & CUSHMAN SAN DIEGO FOOD BANK
    5× · 2018–2023 · $102k · revenue +149%
  • UNITED STATES FUND FOR UNICEF
    3× · 2018–2021 · $58k · revenue +47%

Funded once

  • PA
    PROJECT ANGEL FOODgraduated
    one grant, 2019 · $25k · revenue +273%
  • AL
    ANTI-DEFAMATION LEAGUEgraduated
    one grant, 2019 · $25k · revenue +47%
  • IG
    Individual grant recipient
    one grant, 2019 · $25k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
Feeding San Diego

On a mission to connect every person facing hunger with nutritious meals by maximizing food rescue. through direct service and community partnerships, feeding san diego provides more than 26 million meals each year to children, families,…

Food & Nutrition
2
Federation of State Medical Boards of the United States Inc

The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…

Health
3
United Food Bank

United Food Bank unites communities to alleviate hunger.

Food & Nutrition
4
American Academy of Neurology

The Academy's mission is to enhance member career fulfillment and promote brain health for all.

Community Improvement
5
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

6
Actionaid Usa

Actionaid is an international network building a just, equitable, and sustainable world in solidarity with communities on the frontlines of poverty and injustice. actionaid usa is the u.s. branch of actionaid international, which works in…

Social Science
7
International Food Information Council

To effectively communicate science based information on food safety, nutrition, and health for the public good.

Arts & Culture
8
Childfund Alliance

Childfund alliance is a global network of 11 child-focused development and humanitarian organizations working in more than 70 countries. we help nearly 30 million children and their families to overcome poverty and the underlying…

International
9
America's Health Insurance Plans Inc

Ahip is the national trade association representing the health insurance industry. ahip's members provide health care coverage, services and solutions to more than 200 million americans. we are committed to market-based solutions and…

Membership Benefit
10
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
11
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.

12
United States Telecom Association

See schedule oustelecom exists to ensure members can compete, grow and thrive to build a world where families, enterprises and communities are connected through the power of broadband.our member companies have committed a considerable…

For reference, the grantee most central to the portfolio’s shape is Medecins Sans Frontieres Usa Inc and the most unlike its peers is Rosalynn Carter Institute for Caregivers. 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

14 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 14 of the 18 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
14/14
Grantees still filing
9/14
Grew since you first funded

Where your money sits — by cause, then by grantee

DISABLED AMERICAN VETERANS — $187,672 · OtherDISABLED AMERICAN VETERANSACLU OF SAN DIEGO — $67,500 · OtherACLU OF SAN DIEGOIndividual grant recipient — $25,000 · OtherIndividual grant recipientST JUDE CHILDREN'S RESEARCH HOSPITAL — $11,000 · OtherMEDECINS SANS FRONTIERES USA INC — $107,350 · InternationalMEDECINS SANS FRONTIERES…UNITED STATES FUND FOR UNICEF — $57,672 · InternationalUNITED STATES FUND FOR U…+1 more — $3,000 · InternationalPLANNED PARENTHOOD FEDERATION OF AMERICA INC — $67,500 · HealthPLANNED PARENTHOOD …ALZHEIMER'S SAN DIEGO — $42,500 · HealthALZHEIMER'S SAN DIE…PROJECT ANGEL FOOD — $25,000 · HealthPROJECT ANGEL FOOD+1 more — $1,000 · HealthJACOBS & CUSHMAN SAN DIEGO FOOD BANK — $101,672 · Food & NutritionJACOBS & CUSHMA…MAMA'S KITCHEN — $5,000 · Food & NutritionROSALYNN CARTER INSTITUTE FOR CAREGIVERS — $17,500 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches — $11,000 · Human ServicesANTI-DEFAMATION LEAGUE — $25,000 · Civil RightsTHE UNDERGROUND MUSEUM INC — $25,000 · Arts & CultureTHE ASPEN INSTITUTE INC — $1,000 · Social Science
Other$291,172International$168,022Health$136,000Food & Nutrition$106,672Human Services$28,500Civil Rights$25,000Arts & Culture$25,000Social Science$1,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ your share of their budgetMEDECINS SANS FRONTIERES USA INC — $107,350 over 4y, 0.0% of budgetJACOBS & CUSHMAN SAN DIEGO FOOD BANK — $101,672 over 5y, 0.0% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC — $67,500 over 3y, 0.0% of budgetUNITED STATES FUND FOR UNICEF — $57,672 over 3y, 0.0% of budgetALZHEIMER'S SAN DIEGO — $42,500 over 2y, 0.9% of budgetPROJECT ANGEL FOOD — $25,000 over 1y, 0.4% of budgetANTI-DEFAMATION LEAGUE — $25,000 over 1y, 0.0% of budgetTHE UNDERGROUND MUSEUM INC — $25,000 over 1y, 2.1% of budgetROSALYNN CARTER INSTITUTE FOR CAREGIVERS — $17,500 over 1y, 0.5% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches — $11,000 over 1y, 0.0% of budgetMAMA'S KITCHEN — $5,000 over 1y, 0.1% of budgetSave The Children Federation Inc — $3,000 over 1y, 0.0% of budgetTHE ASPEN INSTITUTE INC — $1,000 over 1y, 0.0% of budgetTHE SHRINERS' HOSPITAL FOR CHILDREN — $1,000 over 1y, 0.0% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a set of overlaps that mostly run through you, not between each other.

Donor Advised Charitable Giving IncCA7.4× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Donor Advised Charitable Giving Inc

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization The Irwin Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%25%50%75%100%share of the org’s income from governmentmedian 30%
  • Save the Children Federation Inc30% of income from government
  • The Shriners' Hospital for Children6% of income from government
no gov moneyreceives it· size = income
0get no government money at all
4report 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, FY2025

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 18 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph