· Private foundation
The Bolotnick Seaver Family Foundation Inc
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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k4 grants · $20k
- $10k–50k8 grants · $175k
| Recipient | Amount |
|---|---|
| CENTER FOR COASTAL STUDIES | $45,000 |
| MASSACHUSETTS AUDUBON SOCIETY | $40,000 |
| UNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION | $25,000 |
| THE CONCORD MUSEUM | $20,000 |
| UNITED SOUTH END SETTLEMENTS | $15,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA INC | $10,000 |
| NATIONAL ABORTION FEDERATION (NATIONAL ABORTION HOTLINE) | $10,000 |
| TRUSTEES OF RESERVATIONS | $10,000 |
| TRUSTEES OF BOSTON UNIVERSITY (WBUR) | $7,500 |
| UNIVERSITY OF ST ANDREWS AMERICAN FOUNDATION INC | $5,000 |
| GEORGE WASHINGTON UNIVERSITY | $5,000 |
| SPEAKEASY STAGE COMPANY 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 (FY20–25, $83k) land where the poverty rate runs at 16%, against an area that typically sits at 8%. 100% 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.
23 repeat relationships — 12 still active in FY2025, 11 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
MASSACHUSETTS AUDUBON SOCIETY INC6× · 2020–2025 · $150k · revenue +47%- CFCENTER FOR COASTAL STUDIES INC6× · 2020–2025 · $130k · revenue +279%
UNITED SOUTH END SETTLEMENTS6× · 2020–2025 · $83k · revenue +74%
Funded once
- TATHE AMERICAN INDEPENDENT FOUNDATIONgraduatedone grant, 2022 · $20k · revenue +124%
- BFBOSTON FOUNDATION COVID-19 RELIEF Fone grant, 2020 · $10k
- IYINVICTUS YOUTH WRESTLING INCone grant, 2023 · $10k
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.
Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…
Undergraduate, graduate, and professional education and research across a broad array of academic domains.
Education and Research
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…
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
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…
To promote understanding of the history of massachusetts and the nation by collecting and communicating materials and resources that foster historical knowledge.
New england law/boston dedicates itself to preparing students to be successful lawyers and leaders in the public and private sectors through integrated practical, theoretical and ethical education of the highest caliber and to contributing…
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
The Marine Biological Laboratory (MBL) is a world-renowned center for biological discovery and training that is notably affiliated with more than 60 Nobel Prize winners. Research is conducted by full-time faculty as well as hundreds of the…
For reference, the grantee most central to the portfolio’s shape is Aclu Foundation of Massachusetts Inc and the most unlike its peers is The Sean Kimerling Testicular Cance Foundation Inc. 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 55 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.
34 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. 34 of the 42 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 MASSACHUSETTS AUDUBON SOCIETY INC ↗
- Who funds CENTER FOR COASTAL STUDIES INC ↗
- Who funds UNITED SOUTH END SETTLEMENTS ↗
- Who funds THE TRUSTEES OF RESERVATIONS ↗
- Who funds CONCORD ANTIQUARIAN SOCIETY D/B/A CONCORD MUSEUM ↗
- Who funds UNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION ↗
- Who funds ACLU FOUNDATION OF MASSACHUSETTS INC ↗
- Who funds BOSTON LATIN SCHOOL ASSOCIATION ↗
- Who funds NATIONAL ABORTION FEDERATION ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds PLANNED PARENTHOOD LEAGUE OF MASSACHUSETTS INC ↗
- Who funds BRIMMER AND MAY SCHOOL ↗
- Who funds THE AMERICAN INDEPENDENT FOUNDATION ↗
- Who funds The George Washington University ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds UNIVERSITY OF ST ANDREWS AMERICAN FOUNDATION INC ↗
- Who funds THE SEAN KIMERLING TESTICULAR CANCE FOUNDATION INC ↗
- Who funds EARTHJUSTICE ↗
- Who funds PEABODY ESSEX MUSEUM INC ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds THE CAMBRIDGE SCHOOL OF WESTON INC ↗
- Who funds THE INSTITUTE OF CONTEMPORARY ART INC ↗
- Who funds MUSEUM OF FINE ARTS ↗
- Who funds Old Dartmouth Historical Society ↗
- Who funds PROVINCETOWN ART ASSOCIATION AND MUSEUM INC ↗
- Who funds Speakeasy Stage Company Inc ↗
- Who funds COMMUNITY MUSIC CENTER OF BOSTON INC ↗
- Who funds Guttmacher Institute Inc ↗
- Who funds THE CENTER FOR REPRODUCTIVE RIGHTS INC ↗
- Who funds ENVIRONMENTAL LEAGUE OF MASSACHUSETTS INC ↗
- Who funds MORE THAN WORDS 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 · Eastern Bank Foundation · Barr Foundation · American Tower Corporation Foundation Inc · Combined Jewish Philanthropies of Greater Boston Inc · Fidelity Foundation · The Klarman Family Foundation · Arbella Insurance Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · The Pfizer 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 The Bolotnick Seaver Family Foundation 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.
- Center for Coastal Studies Inc — 26% of income from government
- More Than Words Inc — 24% of income from government
- Trustees of Boston University — 12% of income from government
- Planned Parenthood League of Massachusetts Inc — 3% of income from government
- Peabody Essex Museum Inc — 3% of income from government
- The Trustees of Reservations — 2% of income from government
- Old Dartmouth Historical Society — 2% of income from government
- Massachusetts Audubon Society Inc — 1% of income from government
- The Institute of Contemporary Art Inc — 1% of income from government
- Concord Antiquarian Society D/B/a Concord Museum — 1% of income from government
- Community Music Center of Boston Inc — 1% of income from government
- Museum of Fine Arts — 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 The Bolotnick Seaver Family Foundation Inc?
Find your warmest path to The Bolotnick Seaver Family Foundation Inc 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.