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Plinth

· Private foundation

Lost Pond 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.

$2.0M
Granted FY2025still arriving
29
Grants FY2025still arriving
6
States reached
$255k
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 FY20222025.

Philanthropy$1.3MHealth$1.1MYouth Development$625kHuman Services$608kEducation$483kEnvironment$456kFood & Nutrition$300kReligion$197kOther$0
02FY2025 · 29 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k7 grants · $35k
  • $10k–50k7 grants · $178k
  • $50k–250k14 grants · $1.5M
  • $250k+1 grant · $255k
$50,000
Median grant
6
States reached
$36M
Total assets
Largest grants
RecipientAmount
Indiana University Foundation$255,000
The Nature Conservancy$200,000
Breakthrough T1D (FKA JDRF)$175,000
Catholic Charities - Diocese of Joliet$155,000
Alzheimer's Association$150,000
By the Hand Club for Kids$150,000
Doctors without Borders$100,000
Brilliant Cities To Support Expansion Into Chicago$100,000
Donald Danforth Plant Science Center$100,000
Cristo Rey Network$75,000
The Thresholds Homeless Outreach Program (Hop)$75,000
St Alphonsus Parish$75,000
Northern Illinois Food Bank$75,000
Northwestern Medicine$55,000
Chicago Commons$50,000
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 (FY25–25, $50k) land where the poverty rate runs at 14%, 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%Chicago Commons: $50k → 14%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

IL
MI
NY
MA
IN
OH
PA
CA
MO
DC

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.

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.

69%of every dollar goes to organizations you’ve funded before.
$2.5M · 22 repeat orgs$1.2M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +34% since the first grant, against +22% for the ones you funded once.

22 repeat relationships — 17 still active in FY2025, 5 since wound down; 11 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

22
13

Total granted

$2.5M
$277k

Median revenue growth · since first grant

+34%
+22%

Still filing today

50%
54%

New vs renewed · share of each year

In FY2025, 51% of grant dollars renewed an existing relationship; $875k went to new ones.

50%100%’22’23’24’25
RenewedFirst-time

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

’22’23’24’25
HealthEducationFood & NutritionArts & CultureEnvironmentRecreation & SportsOther

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

  • Indiana University Foundation
    3× · 2023–2025 · $395k · revenue +41%
  • CC
    CATHOLIC CHARITIES OF THE DIOCESE OF JOLIET
    3× · 2023–2025 · $390k · revenue +35%
  • GREATER CHICAGO FOOD DEPOSITORY
    4× · 2022–2025 · $55k · revenue +34%

Funded once

  • BT
    BREAKTHROUGH T1Dgraduated
    one grant, 2023 · $150k · revenue +35%
  • BRILLIANT DETROIT
    one grant, 2024 · $100k · revenue 0%
  • HH
    HINSDALE HOSPITAL FOUNDATIONgraduated
    one grant, 2023 · $5k · revenue +204%

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
Central Indiana Corporate Partnership Inc

Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…

Community Improvement
2
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
3
Uchicago Medicine Network Inc

Uchicago medicine network, inc. supports and encourages health and human service by providing support, directly or indirectly to ingalls memorial hospital, the university of chicago medical center, and other related tax-exempt…

Health
4
Chicago Public Education Fund

The chicago public education fund (the fund) is a nonprofit organization that improves public schools in chicago by investing in the talented educators who lead them.

Education
5
University Family Physicians Inc

Engage actively and continuously in medical research, education and training in the practice of medicine in conjunction with the department of family medicine of the indiana university school of medicine and indiana university…

6
National Opinion Research Center

See schedule onorc at the university of chicago conducts research and data science on critical societal issues to guide decision-making and the development of programs and public policy. our experts identify relationships and trends, and…

Social Science
7
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
8
International Biomedical Research Alliance

Our mission is to invest in and accelerate the development of the most promising future leaders in biomedical research with global impact.

Health
9
Society for Neuroscience

Sfn's mission is to: 1. advance the understanding of the brain and the nervous system by bringing together scientists of all segments of neuroscience, by facilitating the integration of research directed at all levels of biological…

Health
10
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
11
International Food Information Council

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

Arts & Culture
12
Indiana University Health Foundation Inc

Indiana university health foundation leverages the power of philanthropy to support the iu health goal of making indiana one of the healthiest states in the nation.

Health

For reference, the grantee most central to the portfolio’s shape is Candor Health Education and the most unlike its peers is Elementry School District No 181 Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 37 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%0%5–10yr19%9%10–20yr16%36%20–35yr13%32%35–55yr16%23%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%0%5–10yr19%3%10–20yr16%22%20–35yr13%50%35–55yr16%25%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/26
the rest of the field
13%
240,396/1,819,539

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

26 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. 26 of the 48 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)
4
Early backer (in before they grew)
26/26
Grantees still filing
18/26
Grew since you first funded

Where your money sits — by cause, then by grantee

By The Hand Club For Kids — $525,000 · OtherBy The Hand Club For KidsTHE NATURE CONSERVANCY — $424,000 · OtherTHE NATURE CONSERVANCYCATHOLIC CHARITIES OF THE DIOCESE OF JOLIET — $390,000 · OtherCATHOLIC CHARITIES OF THE DIOCESE OF JOLIETBreakthrough T1D (FKA JDRF) — $350,000 · OtherBreakthrough T1D (FKA JDRF)Alzheimer's Association — $350,000 · OtherAlzheimer's AssociationBrilliant Cities To Support Expansion Into Chicago — $100,000 · OtherDONALD DANFORTH PLANT SCIENCE CENTER — $100,000 · Other+26 more — $719,100 · Other+26 moreFIDELITY INVESTMENTS CHARITABLE GIFT FUND — $1,293,138 · Community ImprovementFIDELITY INVESTMENTS CHARIT…Indiana University Foundation — $395,000 · EducationIndiana Un…CRISTO REY NETWORK — $75,000 · EducationCRISTO REY…+2 more — $11,000 · EducationALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC — $150,000 · HealthBREAKTHROUGH T1D — $150,000 · HealthWellness House — $20,000 · HealthCANDOR HEALTH EDUCATION — $15,000 · Health+2 more — $6,000 · HealthNORTHERN ILLINOIS FOOD BANK — $75,000 · Food & NutritionGREATER CHICAGO FOOD DEPOSITORY — $55,000 · Food & NutritionMEDECINS SANS FRONTIERES USA INC — $100,000 · InternationalBRILLIANT DETROIT — $100,000 · Youth Development
Other$2,958,100Community Improvement$1,293,138Education$481,000Health$341,000Food & Nutrition$130,000International$100,000Youth Development$100,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND — $1,293,138 over 2y, 0.0% of budgetBy The Hand Club For Kids — $525,000 over 4y, 1.1% of budgetTHE NATURE CONSERVANCY — $424,000 over 3y, 0.0% of budgetIndiana University Foundation — $395,000 over 3y, 0.0% of budgetCATHOLIC CHARITIES OF THE DIOCESE OF JOLIET — $390,000 over 3y, 0.5% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC — $150,000 over 1y, 0.0% of budgetBREAKTHROUGH T1D — $150,000 over 1y, 0.1% of budgetBRILLIANT DETROIT — $100,000 over 1y, 1.6% of budgetCRISTO REY NETWORK — $75,000 over 1y, 0.5% of budgetNORTHERN ILLINOIS FOOD BANK — $75,000 over 1y, 0.0% of budgetGREATER CHICAGO FOOD DEPOSITORY — $55,000 over 4y, 0.0% of budgetTHE ADLER PLANETARIUM — $50,000 over 2y, 0.1% of budgetChicago Commons Association — $50,000 over 1y, 0.1% of budgetCHIKAMING OPEN LANDS — $30,000 over 4y, 0.4% of budgetWellness House — $20,000 over 4y, 0.2% of budgetCANDOR HEALTH EDUCATION — $15,000 over 3y, 0.3% of budgetUNITING VOICES — $13,500 over 4y, 0.1% of budgetElementry School District No 181 Foundation — $10,000 over 4y, 4.0% of budgetHINSDALE HOSPITAL FOUNDATION — $5,000 over 1y, 0.4% of budgetASSISTANCE LEAGUE OF CHICAGOLAND WEST — $5,000 over 2y, 0.9% of budgetFRIENDS OF BERRIEN COUNTY TRAILS — $5,000 over 1y, 1.1% of budgetTHE MULTIPLE MYELOMA RESEARCH FOUNDATION INC — $1,000 over 1y, 0.0% of budgetWIKIMEDIA FOUNDATION INC — $1,000 over 1y, 0.0% of budgetASSOCIATION OF SMALL FOUNDATIONS — $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.

  • Who funds FIDELITY INVESTMENTS CHARITABLE GIFT FUND
  • Who funds By The Hand Club For Kids
  • Who funds THE NATURE CONSERVANCY
  • Who funds Indiana University Foundation
  • Who funds CATHOLIC CHARITIES OF THE DIOCESE OF JOLIET
  • Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC
  • Who funds BREAKTHROUGH T1D
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds BRILLIANT DETROIT
  • Who funds DONALD DANFORTH PLANT SCIENCE CENTER
  • Who funds CRISTO REY NETWORK
  • Who funds NORTHERN ILLINOIS FOOD BANK
  • Who funds GREATER CHICAGO FOOD DEPOSITORY
  • Who funds THE ADLER PLANETARIUM
  • Who funds Chicago Commons Association
  • Who funds CHIKAMING OPEN LANDS
  • Who funds Wellness House
  • Who funds CANDOR HEALTH EDUCATION
  • Who funds UNITING VOICES
  • Who funds Elementry School District No 181 Foundation
  • Who funds HINSDALE HOSPITAL FOUNDATION
  • Who funds ASSISTANCE LEAGUE OF CHICAGOLAND WEST
  • Who funds FRIENDS OF BERRIEN COUNTY TRAILS

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 tightly interlocked camp — most of these funders back each other's grantees too.

Baird Foundation IncWI11.9× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: Baird Foundation Inc · American Endowment Foundation · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation

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 Lost Pond 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 · 10%0%1%3%5%your share of their income ↑0%25%50%75%100%share of the org’s income from government
    no gov moneyreceives it· size = income
    1get no government money at all
    7report 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 48 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 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph