· Private foundation
Third Street 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k19 grants · $48k
- $10k–50k1 grant · $35k
- $50k–250k1 grant · $66k
| Recipient | Amount |
|---|---|
| HARVARD COLLEGE | $66,000 |
| CORNING MUSEUM OF GLASS | $35,000 |
| ST HILDA'S & ST HUGH'S SCHOOL | $5,000 |
| UNICEF USA | $4,000 |
| WORLD CENTRAL KITCHEN | $4,000 |
| DOCTORS WITHOUT BORDERS | $4,000 |
| SAVE THE CHILDREN | $3,000 |
| PARTNERS IN HEALTH | $3,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA | $3,000 |
| GREEN INSPIRED ART | $3,000 |
| EQUAL JUSTICE INITIATIVE | $3,000 |
| ST PAUL'S SCHOOL | $2,000 |
| HABITAT FOR HUMANITY INTERNATIONAL | $2,000 |
| HUMAN RIGHTS CAMPAIGN FOUNDATION | $2,000 |
| HOUSEHOLD GOODS INC | $2,000 |
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.
Your human-services grants (FY17–24, $15k) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 60% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
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
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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +58% since the first grant, against +16% for the ones you funded once.
28 repeat relationships — 19 still active in FY2024, 9 since wound down; 2 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 94% of grant dollars renewed an existing relationship; $9k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- TCTHE CORNING MUSEUM OF GLASS6× · 2019–2024 · $137k · revenue +8%
- PSPURNELL SCHOOL4× · 2017–2021 · $63k · revenue +58%
- MSMARLBOROUGH SCHOOL4× · 2017–2021 · $20k · revenue +32%
Funded once
- CECHRIST EPISCOPAL CHURCHone grant, 2023 · $50k
- TETOMORROW'S EDUCATION NETWORK INCone grant, 2022 · $30k · revenue -64%
- TTTHE TRIANGLE FUNDgraduatedone grant, 2023 · $14k · revenue +333%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
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.
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…
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 and Research
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Wpi transforms lives, turns knowledge into action to confront global challenges, and revolutionizes stem through distinctive and inclusive education, projects and research. (http://www.wpi.edu/about/mission.html)
To educate students to be ethical and socially responsible leaders in a global community.
Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.
Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…
Wheaton college provides a transformative liberal arts education, combining theory and practice, for intellectually curious students within a collaborative and vibrant extended community and network that values and strives to create an…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
Williams College strives to achieve educational excellence by fostering a community of learning in collaboration with students, faculty, staff, devoted alumni and parents.
For reference, the grantee most central to the portfolio’s shape is Human Rights Watch Inc and the most unlike its peers is The Triangle Fund. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 39 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% lost their exemption, against 13% of the field you don’t fund.
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.
31 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. 31 of the 43 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.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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 THE CORNING MUSEUM OF GLASS ↗
- Who funds PURNELL SCHOOL ↗
- Who funds CORNING COMMUNITY COLLEGE DEVELOPMENT FOUNDATION INC ↗
- Who funds TOMORROW'S EDUCATION NETWORK INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds MARLBOROUGH SCHOOL ↗
- Who funds THE TRIANGLE FUND ↗
- Who funds PARTNERS IN HEALTH A NONPROFIT CORPORATION ↗
- Who funds EQUAL JUSTICE INITIATIVE ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds ETHICAL CULTURE FIELDSTON SCHOOL ↗
- Who funds PINE STREET INN INC ↗
- Who funds ROSIE'S PLACE INC ↗
- Who funds Save The Children Federation Inc ↗
- Who funds WASHINGTON UNIVERSITY ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds The Farm School Inc ↗
- Who funds HOUSEHOLD GOODS INC ↗
- Who funds HUMAN RIGHTS CAMPAIGN FOUNDATION ↗
- Who funds UNITED STATES FUND FOR UNICEF ↗
- Who funds Trustees of Dartmouth College ↗
- Who funds NATIONAL DANCE INSTITUTE ↗
- Who funds BOSTON AREA GLEANERS INC ↗
- Who funds OPEN TABLE INC ↗
- Who funds CHEMUNG COUNTY CHILD CARE COUNCIL INC ↗
- Who funds HORNELL AREA CONCERN FOR YOUTH INC ↗
- Who funds HUMAN RIGHTS WATCH INC ↗
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.
Open a dossier: The Triangle Fund · Ge Aerospace Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Vanguard Charitable Endowment Program · National Philanthropic Trust · American Endowment Foundation · Charities Aid Foundation America · Morgan Stanley Global Impact Funding Trust Inc · American Online Giving Foundation Inc · 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 Third Street 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, a single department, or state — and drag the year to watch it move.
- Save the Children Federation Inc — 30% of income from government
- Boston Area Gleaners Inc — 20% of income from government
- The Farm School Inc — 12% of income from government
- Pine Street Inn Inc — 11% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Open Table Inc — 7% of income from government
- Rosie's Place Inc — 0% of income from government
- Partners in Health a Nonprofit Corporation — 0% of income from government
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.
Warm introductions · Powered by PlinthPlus
How do I get to Third Street Foundation?
Find your warmest path to Third Street 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.