· Private foundation
Rhonda S Zinner 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 $10k4 grants · $23k
- $10k–50k13 grants · $213k
| Recipient | Amount |
|---|---|
| FULL SPECTRUM FEATURES | $47,500 |
| NEW WORLD SYMPHONY INC | $25,000 |
| THRIVE SCHOLARS | $20,000 |
| LUSTGARTEN FOUNDATION FOR PANCREATIC CANCER RESEARCH | $20,000 |
| XPRIZE FOUNDATION INC | $15,000 |
| THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S | $15,000 |
| BOYS AND GIRLS CLUBS OF BOSTON INC | $10,000 |
| HOMELESS PREVENTION COUNCIL INC | $10,000 |
| MCLEAN HOSPITAL | $10,000 |
| BEACON ACADEMY | $10,000 |
| JAMES BEARD FOUNDATION | $10,000 |
| GATEWAY ARTS | $10,000 |
| WOMEN'S LUNCH PLACE INC | $10,000 |
| HAMMER MUSEUM | $7,500 |
| WELLESLEY FOOD PANTRY | $5,000 |
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 (FY18–25, $110k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 30% 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 +52% since the first grant, against +29% for the ones you funded once.
29 repeat relationships — 16 still active in FY2025, 13 since wound down; 1 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, 80% of grant dollars renewed an existing relationship; $48k 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
- NWNEW WORLD SYMPHONY INC8× · 2018–2025 · $190k · revenue +48%
BOSTON MEDICAL CENTER CORPORATION5× · 2019–2023 · $185k · revenue +49%- TSTHRIVE SCHOLARS8× · 2018–2025 · $155k · revenue +152%
Funded once
- NPNATIONAL PARKINSON FOUNDATION INCone grant, 2017 · $35k
- CHCAMP HARBOR VIEW FOUNDATION INCgraduatedone grant, 2017 · $25k · revenue +229%
SOUTH FLORIDA PBS INCgraduatedone grant, 2024 · $15k · revenue +27%
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.
Provider of pediatric healthcare, education, research & community service
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.
Bb&n, an all gender day school in cambridge, massachusetts, was established in 1974 by the merger of two independent schools, the buckingham school and the browne & nichols school, founded respectively in 1889 and 1883. located on multiple…
Boston children's museum engages children and families in joyful discovery experiences that instill an appreciation of our world, develop foundational skills, and spark a lifelong love of learning. boston children's museum is a welcoming,…
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.…
Organization's mission bentley university believes good business can impact more than the bottom line - it can change the world. bentley is a community of future business leaders who will deliver value in the marketplace and lasting…
The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.
The brookline center for community mental health provides groundbreaking mental health services rooted in meaningful innovation and compassionate care. in response to today's mental health landscape and the ongoing mental health crisis,…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
Community music center of boston ("cmcb") transforms lives throughout greater boston by providing equitable access to excellent music education and arts experiences.
We protect consumers of behavior analysis services by systematically establishing, promoting, and disseminating professional standards.
For reference, the grantee most central to the portfolio’s shape is Doc Wayne Inc and the most unlike its peers is Planet Buyback. 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 27 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) — 3% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% 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.
35 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. 35 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.
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 WORLD SYMPHONY INC ↗
- Who funds BOSTON MEDICAL CENTER CORPORATION ↗
- Who funds THRIVE SCHOLARS ↗
- Who funds BOYS & GIRLS CLUBS OF BOSTON INC ↗
- Who funds ARMAND HAMMER MUSEUM OF ART AND CULTURAL CENTER INC ↗
- Who funds PARK SCHOOL CORPORATION ↗
- Who funds Full Spectrum Features NFP ↗
- Who funds THE JAMES BEARD FOUNDATION INC ↗
- Who funds WOMEN'S LUNCH PLACE INC ↗
- Who funds X PRIZE FOUNDATION INC ↗
- Who funds HOMELESS PREVENTION COUNCIL INC ↗
- Who funds VINFEN CORPORATION ↗
- Who funds CAMP HARBOR VIEW FOUNDATION INC ↗
- Who funds BOSTON CHILDREN'S CHORUS INC ↗
- Who funds THE BEAVER COUNTRY DAY SCHOOL INC ↗
- Who funds POSITIVE COACHING ALLIANCE ↗
- Who funds CHADD INC CHILDREN AND ADULTS WITH ATTENTION DEFICIT/HYPERACTIVITY DISORDER ↗
- Who funds SOUTH FLORIDA PBS INC ↗
- Who funds SCIENCE CLUB FOR GIRLS INC ↗
- Who funds GRASSROOT SOCCER INC ↗
- Who funds DOC WAYNE INC ↗
- Who funds CHARITY GLOBAL INC ↗
- Who funds ECONOMIC MOBILITY PATHWAYS INC ↗
- Who funds MUSEUM ASSOCIATES ↗
- Who funds GREATER BOSTON FOOD BANK INC ↗
- Who funds JUDGE BAKER CHILDREN'S CENTER ↗
- Who funds BLESSINGS IN A BACKPACK INC ↗
- Who funds MEDWAY VILLAGE FOOD PANTRY INC ↗
- Who funds BURNING MAN PROJECT ↗
- Who funds WELLESLEY FOOD PANTRY INC ↗
- Who funds PLANET BUYBACK ↗
- Who funds MULTIDISCIPLINARY ASSOCIATION FOR PSYCHEDELIC STUDIES 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: Boston Foundation Inc · Combined Jewish Philanthropies of Greater Boston Inc · Carl & Ruth Shapiro Family Foundation · Richard & Susan Smith Family Foundation · Analog Devices Foundation · Eastern Bank Foundation · The Cabot Family Charitable Trust · The Hamilton Company Charitable Foundation · Cambridge Savings Charitable Foundation Inc · Rockland Trust Charitable Foundation Inc · Liberty Mutual Foundation Inc · American Tower Corporation Foundation Inc
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 Rhonda S Zinner 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.
- Vinfen Corporation — 83% of income from government
- Chadd Inc Children and Adults With Attention Deficit/Hyperactivity Disorder — 31% of income from government
- Judge Baker Children's Center — 29% of income from government
- Neck of the Woods Inc — 26% of income from government
- Boston Medical Center Corporation — 23% of income from government
- Greater Boston Food Bank Inc — 22% of income from government
- Doc Wayne Inc — 15% of income from government
- Women's Lunch Place Inc — 8% of income from government
- Economic Mobility Pathways Inc — 6% of income from government
- Homeless Prevention Council Inc — 4% of income from government
- Catie's Closet Inc — 4% of income from government
- Boys & Girls Clubs of Boston Inc — 2% of income from government
- Boston Children's Chorus Inc — 2% of income from government
- Camp Harbor View Foundation Inc — 1% of income from government
- New World Symphony Inc — 0% of income from government
- South Florida Pbs 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.
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Find your warmest path to Rhonda S Zinner 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.