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Plinth
Foundation DossiersMostly funded, not a grantmaker — see who funds it →
Plinth

· Public charity

Waterside School Inc

To provide a superb, well-rounded early year educational foundation for motivated, disadvantaged children, starting with pre-kindergarten through fifth grade.

$4.1M
Granted FY2025still arriving
12
Grants FY2025still arriving
5
States reached
$27k
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
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 FY2021–2025.

Education$740k
02FY2025 · 12 grants

Where the money goes

Your grants by size, and where they go.

The 12 grants below total $145,691 — the rows itemised in this filing. The $4,060,126 headline is the total grant expense reported on the return, so the remaining $3,914,435 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.

By grant size · FY2025

  • Under $10k2 grants · $12k
  • $10k–50k10 grants · $134k
$10,000
Median grant
5
States reached
$78M
Total assets
Largest grants
RecipientAmount
UNIVERSITY OF CONNECTICUT$26,500
QUINNIPIAC UNIVERSITY$20,000
HOWARD UNIVERSITY$16,500
ARCHBISHOP STEPINAC HIGH SCHOOL$10,521
COLGATE UNIVERSITY$10,000
HAMPTON UNIVERSITY$10,000
FORDHAM UNIVERSITY$10,000
HAMILTON COLLEGE$10,000
THE UNQUOWA SCHOOL$10,000
SACRED HEART UNIVERSITY$10,000
NORTHWESTERN UNIVERSITY$6,500
SACRED HEART GREENWICH$5,670
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:

Dollar for dollar, your grants (FY21–25) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 53% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.

area typical 11%BRANDEIS UNIVERSITY: $6k → 8%GORDON COLLEGE: $10k → 10%VILLANOVA UNIVERSITY: $10k → 10%WASHINGTON AND JEFFERSON COLLEGE: $10k → 12%UNIVERSITY OF CONNECTICUT: $13k → 22%BARD COLLEGE: $30k → 9%FORDHAM UNIVERSITY: $6k → 9%COLGATE UNIVERSITY: $10k → 11%ST LUKE'S SCHOOL: $40k → 13%HAMILTON COLLEGE: $10k → 16%WINSTON PREPARATORY SCHOOL: $19k → 17%FORDHAM UNIVERSITY: $10k → 28%HOWARD UNIVERSITY: $17k → 14%UNQUOWA SCHOOL: $20k → 9%UNIVERSITY OF HARTFORD: $6k → 11%UNIVERSITY OF CONNECTICUT: $29k → 11%QUINNIPIAC UNIVERSITY: $20k → 12%UNQUOWA SCHOOL: $20k → 14%EMORY UNIVERSITY: $8k → 14%NORTHWESTERN UNIVERSITY: $7k → 14%HAMPTON UNIVERSITY: $10k → 14%UNIVERSITY OF RICHMOND: $11k → 22%UNIVERSITY OF NEW ENGLAND: $6k → 9%VILLANOVA UNIVERSITY: $8k → 10%DREXEL UNIVERSITY: $13k → 22%MASTERS SCHOOL: $6k → 9%FORDHAM UNIVERSITY: $10k → 28%HOWARD UNIVERSITY: $10k → 14%THE UNQUOWA SCHOOL ASSOCIATION INC: $20k → 9%UNIVERSITY OF CONNECTICUT: $28k → 11%QUINNIPIAC UNIVERSITY: $15k → 12%TRINITY CHRISTIAN COLLEGE: $6k → 14%HAMPTON UNIVERSITY: $15k → 14%RICHMOND UNIVERSITY: $10k → 22%VILLANOVA UNIVERSITY: $8k → 10%ARCHBISHOP STEPINAC HIGH SCHOOL: $11k → 9%THE UNQUOWA SCHOOL: $10k → 9%UNIVERSITY OF CONNECTICUT: $27k → 11%QUINNIPIAC UNIVERSITY: $13k → 12%SCHOOL OF THE HOLY CHILD: $8k → 9%SACRED HEART UNIVERSITY: $10k → 9%UNIVERSITY OF CONNECTICUT: $19k → 11%SCHOOL OF HOLY CHILD: $7k → 9%EAGLE HILL SCHOOL: $36k → 9%EAGLE HILL SCHOOL: $35k → 9%SACRED HEART GREENWICH: $6k → 9%WINSTON PREP: $24k → 9%ST LUKES SCHOOL: $53k → 9%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

ME
IL
NY
MA
PA
CT
CA
VA
DC
GA

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.

75%of every dollar goes to organizations you’ve funded before.
$540k · 11 repeat orgs$184k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +14% since the first grant, against +11% for the ones you funded once.

11 repeat relationships — 5 still active in FY2025, 6 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
12

Total granted

$540k
$132k

Median revenue growth · since first grant

+14%
+11%

Still filing today

91%
75%

New vs renewed · share of each year

In FY2025, 61% of grant dollars renewed an existing relationship; $53k went to new ones.

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

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

’21’22’23’24’25
EducationRecreation & 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

  • SL
    ST LUKE'S FOUNDATION INC
    2× · 2021–2023 · $93k · revenue +14%
  • EH
    EAGLE HILL FOUNDATION INC
    2× · 2021–2022 · $70k · revenue +20%
  • TU
    THE UNQUOWA SCHOOL ASSOCIATION INC
    4× · 2021–2025 · $70k · revenue +7%

Funded once

  • BARD COLLEGEgraduated
    one grant, 2022 · $30k · revenue +135%
  • HU
    HAMPTON UNIVERSITY
    one grant, 2021 · $15k
  • UO
    UNIVERSITY OF CONNECTICUT
    one grant, 2021 · $13k

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
Lehigh University

The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…

Education
2
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
3
Western New England University

Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…

Education
4
Endicott College

Endicott college offers students a vibrant academic environment that remains true to its founding principle of integrating professional and liberal arts with experiential learning. for more information see schedule o.

Education
5
Seton Hall University

Seton hall university is a catholic institution of higher education

—
6
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
7
Albright College

As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.

Education
8
Manhattanville University

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

Education
9
President and Fellows of Harvard College

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

Education
10
Fairleigh Dickinson University

Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…

Education
11
Boston Architectural College

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

—
12
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

For reference, the grantee most central to the portfolio’s shape is Fordham University and the most unlike its peers is Masters School. 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 80 years old; the field is 21. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number18%0%<5yr12%0%5–10yr18%4%10–20yr18%7%20–35yr14%11%35–55yr20%78%55yr+
THE FIELDby orgYOUR MONEYby value18%0%<5yr12%0%5–10yr18%1%10–20yr18%2%20–35yr14%18%35–55yr20%78%55yr+

The field is 18% 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 10% of the field you don’t fund.

orgs you fund
0.0%0/31
the rest of the field
10%
2,154/22,414

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

25 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 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 25 of the 31 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)
25/25
Grantees still filing
17/25
Grew since you first funded

Where your money sits — by cause, then by grantee

THE UNIVERSITY OF CONNECTICUT FOUNDATION INC — $102,500 · EducationTHE UNIVERSITY OF CONNECTICUT FOUNDATION INCST LUKE'S FOUNDATION INC — $92,775 · EducationST LUKE'S FOUNDATION INCEAGLE HILL FOUNDATION INC — $70,400 · EducationEAGLE HILL FOUNDATION INCQUINNIPIAC UNIVERSITY — $48,000 · EducationQUINNIPIAC UNIVERSITYTHE WINSTON PREPARATORY SCHOOL — $42,600 · EducationTHE WINSTON PREPARATORY SCHOOLBARD COLLEGE — $30,000 · EducationTHE HOWARD UNIVERSITY — $26,500 · EducationVILLANOVA UNIVERSITY — $26,000 · EducationFordham University — $25,850 · EducationUNIVERSITY OF RICHMOND — $20,856 · Education+12 more — $103,029 · Education+12 moreTHE UNQUOWA SCHOOL ASSOCIATION INC — $70,000 · OtherTHE UNQUOWA SCHOOL ASS…SCHOOL OF THE HOLY CHILD — $15,000 · OtherSCHOOL OF THE HOLY CHI…HAMPTON UNIVERSITY — $15,000 · OtherHAMPTON UNIVERSITYUNIVERSITY OF CONNECTICUT — $13,000 · OtherUNIVERSITY OF CONNECTI…ARCHBISHOP STEPINAC HIGH SCHOOL — $10,521 · OtherARCHBISHOP STEPINAC HI…UNIVERSITY OF SOUTHERN CALIFORNIA — $10,000 · OtherUNIVERSITY OF SOUTHERN…MASTERS SCHOOL — $6,000 · OtherTRUSTEES OF THE CONVENT OF THE SACRED HEART INC — $5,670 · OtherNorthwestern University — $6,500 · Recreation & Sports
Education$588,510Other$145,191Recreation & Sports$6,500

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 budgetTHE UNIVERSITY OF CONNECTICUT FOUNDATION INC — $102,500 over 4y, 0.0% of budgetST LUKE'S FOUNDATION INC — $92,775 over 2y, 0.1% of budgetEAGLE HILL FOUNDATION INC — $70,400 over 2y, 0.2% of budgetTHE UNQUOWA SCHOOL ASSOCIATION INC — $70,000 over 4y, 0.3% of budgetQUINNIPIAC UNIVERSITY — $48,000 over 3y, 0.0% of budgetTHE WINSTON PREPARATORY SCHOOL — $42,600 over 2y, 0.1% of budgetBARD COLLEGE — $30,000 over 1y, 0.0% of budgetTHE HOWARD UNIVERSITY — $26,500 over 2y, 0.0% of budgetVILLANOVA UNIVERSITY — $26,000 over 3y, 0.0% of budgetFordham University — $25,850 over 3y, 0.0% of budgetUNIVERSITY OF RICHMOND — $20,856 over 2y, 0.0% of budgetDREXEL UNIVERSITY — $12,500 over 1y, 0.0% of budgetTrustees of Hamilton College — $10,000 over 1y, 0.0% of budgetHAMPTON UNIVERSITY — $10,000 over 1y, 0.0% of budgetWASHINGTON & JEFFERSON COLLEGE — $10,000 over 1y, 0.0% of budgetGORDON COLLEGE — $10,000 over 1y, 0.0% of budgetCOLGATE UNIVERSITY — $10,000 over 1y, 0.0% of budgetSACRED HEART UNIVERSITY INCORPORATED — $10,000 over 1y, 0.0% of budgetEmory University — $7,500 over 1y, 0.0% of budgetMASTERS SCHOOL — $6,000 over 1y, 0.0% of budgetUniversity of New England — $6,000 over 1y, 0.0% of budgetTRINITY CHRISTIAN COLLEGE ASSOCIATION — $6,000 over 1y, 0.0% of budgetUNIVERSITY OF HARTFORD — $5,529 over 1y, 0.0% of budgetBRANDEIS UNIVERSITY — $5,500 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 tightly interlocked camp — most of these funders back each other's grantees too.

Ge Aerospace Foundati…Jewish Communal FundMorgan Stanley Global…National Philanthropi…The Blackbaud Giving …Vanguard Charitable E…The Bank of America C…American Online Givin…American Endowment Fo…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Ge Aerospace FoundationCT11.7× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ge Aerospace Foundation · Jewish Communal Fund · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Blackbaud Giving Fund · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · American Endowment Foundation · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Waterside School Inc 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, a single department, or state — and drag the year to watch it move.

2025
’20’21’22’23’24’25
no gov · 40%0%1%3%5%your share of their income ↑0%8%15%22%30%share of the org’s income from government →median 0%
  • Brandeis University — 8% of income from government
  • University of Hartford — 1% of income from government
  • Sacred Heart University Incorporated — 0% of income from government
  • Quinnipiac University — 0% of income from government
  • Gordon College — 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–30%
typical government reliance, FY20–25

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 31 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 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

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 camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home
State money flows
the interactive map of money crossing state lines