· Private foundation
Fox Rock 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k15 grants · $36k
- $10k–50k3 grants · $45k
| Recipient | Amount |
|---|---|
| COMMONWEALTH ZOOLOGICAL CORP DBA ZOO NEW ENGLAND | $25,000 |
| QUIN IMPACT FUND | $10,000 |
| DOVE | $10,000 |
| NORWELL HISTORICAL SOCIETY | $6,497 |
| DANA FARBER CANCER INSTITUTE | $5,700 |
| THE RICKY KING FOUNDATION INC | $5,000 |
| WESTPORT LAND CONSERVATION TRUST | $5,000 |
| ROSIES PLACE | $5,000 |
| PLAY FOR PINK | $2,000 |
| BOSTON CHILDREN'S HOSPITAL | $2,000 |
| THE GREATER BOSTON FOOD BANK | $1,000 |
| BAY COLONY DOLLARS FOR SCHOLARS | $1,000 |
| BRIGHAM & WOMEN'S HOSPITAL | $1,000 |
| JUNIOR ACHIEVEMENT | $518 |
| GO2 FOR LUNG CANCER | $500 |
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 (FY17–23, $1.9M) land where the poverty rate runs at 8%, against an area that typically sits at 11%. 11% of those 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 +57% since the first grant, against +17% for the ones you funded once.
36 repeat relationships — 11 still active in FY2025, 25 since wound down; 7 grantees were first funded in FY2025 (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 FY2025, 57% of grant dollars renewed an existing relationship; $35k 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
NEW ENGLAND WILDLIFE CENTER INC7× · 2017–2023 · $1.3M · revenue ×15 · 28% of their budget
THE BREAST CANCER RESEARCH FOUNDATION INC7× · 2017–2023 · $1.1M · revenue +40%- AFARTISTS FOR HUMANITY INC4× · 2017–2022 · $1.0M · revenue +83%
Funded once
- FCFIDELITY CHARITABLE - ROB & KAREN HALE DAFone grant, 2017 · $1.6M
- RBRon Burton Training Village Incgraduatedone grant, 2022 · $1.1M · revenue +50%
- FHFRIENDSHIP HOME OF LINCOLN INCgraduatedone grant, 2022 · $1.0M · revenue +33%
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 bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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.
The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
Mass general brigham health plan's mission is to promote the health and wellness of our members, and to help ensure equitable, affordbale health care for the diverse communities we serve.
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…
Brighton marine, inc. provides military and veteran families with comprehensive campus-based quality health care, as well as affordable and supportive housing for at-risk veterans and their families.
Mcphs university prepares students for careers in health care through teaching, scholarship, research, professional service and community engagement.
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…
Dean college is a private, residential new england college grounded in a culture and tradition that all students deserve the opportunity to discover and exceed their greatest aspirations. a personal and transformative community since 1865,…
Boston university affiliated physicians, inc.'s (buap) primary mission is to provide health care services in a manner that promotes health for the benefit of the community, to perform medical and clinical research in the public interest,…
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 Fenway Community Health Center Inc and the most unlike its peers is Foundation to Combat Anti-Semitism Inc. 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 30 years old; the field is 17. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 1.0% lost their exemption, against 11% 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.
94 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. 94 of the 163 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 NEW ENGLAND WILDLIFE CENTER INC ↗
- Who funds THE BREAST CANCER RESEARCH FOUNDATION INC ↗
- Who funds Ron Burton Training Village Inc ↗
- Who funds ARTISTS FOR HUMANITY INC ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds FRIENDSHIP HOME OF LINCOLN INC ↗
- Who funds TRUSTEES OF BOSTON COLLEGE ↗
- Who funds BOYS & GIRLS CLUBS OF DORCHESTER INC ↗
- Who funds JETT FOUNDATION INC ↗
- Who funds HARLEM LACROSSE AND LEADERSHIP CORPORATION ↗
- Who funds JOE ANDRUZZI FOUNDATION INC ↗
- Who funds CATHOLIC SCHOOLS FOUNDATION INC ↗
- Who funds INNERCITY WEIGHTLIFTING INC ↗
- Who funds BOSTON MEDICAL CENTER CORPORATION ↗
- Who funds SOUTH SHORE STARS INC ↗
- Who funds TREVOR PROJECT INC ↗
- Who funds THE LIGHT FOUNDATION ↗
- Who funds EVERYTOWN FOR GUN SAFETY SUPPORT FUND INC ↗
- Who funds FOUNDATION TO COMBAT ANTI-SEMITISM INC ↗
- Who funds SAFE HOUSE PROJECT INC ↗
- Who funds YEAR UP INC ↗
- Who funds SAVE THE MANATEE CLUB INC ↗
- Who funds RAZOM INC ↗
- Who funds DENVER SCHOLARSHIP FOUNDATION ↗
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: Eastern Bank Foundation · Boston Foundation Inc · Rockland Trust Charitable Foundation Inc · Arbella Insurance Foundation · American Tower Corporation Foundation Inc · Cummings Foundation Grants Inc (Fka Oneworld Boston Inc) · GivenGain Foundation USA · Liberty Mutual Foundation Inc · United Way Of Massachusetts Bay Inc · Yawkey Foundation II · Rockland Trust - Blue Hills Charitable Foundation · Fiduciary Charitable Foundation Dba Fiduciary Trust Charitable
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 Fox Rock 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.
- South Shore Stars Inc — 54% of income from government
- Fenway Community Health Center Inc — 27% of income from government
- Boston Medical Center Corporation — 23% of income from government
- Greater Boston Food Bank Inc — 22% of income from government
- Community Servings Inc — 12% of income from government
- Children's Hospital Corporation — 10% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Boys & Girls Clubs of Dorchester Inc — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Coaching for Change Inc — 5% of income from government
- The Sports Museum of New England Inc — 5% of income from government
- Trustees of Boston College — 3% of income from government
- Artists for Humanity Inc — 2% of income from government
- Boys & Girls Clubs of Boston Inc — 2% of income from government
- Commonwealth Zoological Corporation D/B/a Zoo New England — 2% of income from government
- Appalachian Mountain Club — 1% of income from government
- Lawyers for Civil Rights Inc — 1% of income from government
- New England Wildlife Center Inc — 1% of income from government
- Sandy Hook Promise Foundation — 0% of income from government
- Big Dog Ranch Rescue Inc — 0% of income from government
- Year Up Inc — 0% of income from government
- Rosie's Place Inc — 0% of income from government
- Pan-Massachusetts Challenge Inc — 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 Fox Rock Foundation?
Find your warmest path to Fox Rock 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.