· Private foundation
The Grass 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 FY2019–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k4 grants · $9k
- $10k–50k3 grants · $50k
- $50k–250k3 grants · $428k
| Recipient | Amount |
|---|---|
| MARINE BIOLOGICAL LABORATORY | $194,863 |
| MARINE BIOLOGICAL LABORATORY | $183,600 |
| SOCIETY FOR NEUROSCIENCE | $50,000 |
| FOUNDATION FOR THE NATIONAL INSTITUTE OF HEALTH INC | $30,000 |
| UNIVERSITY OF MASSACHUSETTS FOUNDATION INC | $10,000 |
| Individual grant recipient | $10,000 |
| TRUSTEES OF TUFTS COLLEGE | $4,000 |
| GORDON RESEARCH CONFERENCES | $2,500 |
| GORDON RESEARCH CONFERENCES | $1,000 |
| GORDON RESEARCH CONFERENCES | $1,000 |
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.
Dollar for dollar, your grants (FY19–24) land where the poverty rate runs at 10%, against an area that typically sits at 9%. 27% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +16% since the first grant, against +16% for the ones you funded once.
10 repeat relationships — 4 still active in FY2024, 6 since wound down; 3 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, 90% of grant dollars renewed an existing relationship; $50k 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
- MBMARINE BIOLOGICAL LABORATORY6× · 2019–2024 · $3.5M · revenue +7%
- SFSOCIETY FOR NEUROSCIENCE3× · 2019–2024 · $982k · revenue +15%
Foundation for the National Institutes of Health Inc2× · 2019–2022 · $60k · revenue +46%
Funded once
- UOUniversity of the Incarnate Wordone grant, 2020 · $39k · revenue +10%
- BCBowdoin Collegegraduatedone grant, 2020 · $33k · revenue +38%
- FFFOUNDATION FOR THE NATIONAL INSTITUTES OF HEALTH INCone grant, 2023 · $30k
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.
Organization's mission: boston university is an international, comprehensive, private research university, committed to educating students to be reflective, resourceful individuals ready to live, adapt, and lead in an interconnected world.…
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…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
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…
See schedule ouniversity corporation for atmospheric research (ucar), on behalf of, and in cooperation with its member university members, is engaged in the management of long-term atmospheric and related research and educational…
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.
To harness the power of the human immune system and advanced computing technologies to create and translate scientific discoveries into next generation vaccines and therapies for prevention, control and cure of chronic diseases, enabling…
The scripps research institute ("tsri") performs high impact basic biomedical research, improves the human condition by fostering translation of its discoveries into useful products and engages in the highest quality graduate scientific…
As a leading research university with a distinctive commitment to undergraduate education, Rice University aspires to path breaking research, unsurpassed teaching, and contributions to the betterment of our world. It seeks to fulfill this…
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is University of Massachusetts Foundation Inc and the most unlike its peers is Foundation for the National Institutes of Health Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 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. 16 of the 56 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 MARINE BIOLOGICAL LABORATORY ↗
- Who funds SOCIETY FOR NEUROSCIENCE ↗
- Who funds Foundation for the National Institutes of Health Inc ↗
- Who funds University of the Incarnate Word ↗
- Who funds Bowdoin College ↗
- Who funds COLD SPRING HARBOR LABORATORY ↗
- Who funds UNIVERSITY OF MASSACHUSETTS FOUNDATION INC ↗
- Who funds GORDON RESEARCH CONFERENCES INC ↗
- Who funds University of Arizona Foundation ↗
- Who funds CALIFORNIA STATE UNIVERSITY DOMINGUEZ HILLS TORO AUXILIARY PARTNERS ↗
- Who funds Trustees of Tufts College ↗
- Who funds FUNDACION JOSE A BALSEIRO INC ↗
- Who funds ALAMO COLLEGES FOUNDATION INC ↗
- Who funds INTERNATIONAL SOCIETY FOR NEUROETHOLOGY ↗
- Who funds UNIVERSITY OF CALIFORNIA IRVINE FOUNDATION ↗
- Who funds HENRY M JACKSON FOUNDATION FOR THE ADVANCEMENT OF MILITARY MEDICINE ↗
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: Silicon Valley Community Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · 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 The Grass 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.
- Henry M Jackson Foundation for the Advancement of Military Medicine — 100% of income from government
- Marine Biological Laboratory — 20% of income from government
- Trustees of Tufts College — 13% 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 The Grass Foundation?
Find your warmest path to The Grass 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.