· Private foundation
The Plymouth Rock Assurance 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.
Read this first · the figures below need context
100% of The Plymouth Rock Assurance Foundation’s FY2025 grant dollars went to The Blackbaud Giving Fund, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2025 names 0 organizations directly, so a portfolio cannot be read from it.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- $50k–250k1 grant · $205k
- $250k+1 grant · $785k
| Recipient | Amount |
|---|---|
| Blackbaud Giving Fund | $785,000 |
| Blackbaud Giving Fund | $204,852 |
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 (FY21–21, $64k) land where the poverty rate runs at 13%, against an area that typically sits at 9%. 91% 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.
6 repeat relationships — 6 still active in FY2022, 0 since wound down; 5 grantees were first funded in FY2022 (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 FY2022, 66% of grant dollars renewed an existing relationship; $23k 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
- SLSILVER LINING MENTORING INC2× · 2021–2022 · $35k · revenue +22%
BOSTON COMMUNITY PEDIATRICS INC2× · 2021–2022 · $28k · revenue +245%
Save The Children Federation Inc2× · 2021–2022 · $5k · revenue +1%
Funded once
- CContributionsone grant, 2020 · $619k
BOSTON SCHOOLS FUNDone grant, 2021 · $60k · revenue -100%
STEPPINGSTONE FOUNDATION INCone grant, 2021 · $52k · revenue +17%
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.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.
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
Provider of pediatric healthcare, education, research & community service
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.
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…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
To educate students to be ethical and socially responsible leaders in a global community.
Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.
For reference, the grantee most central to the portfolio’s shape is Trinity Boston Connects Inc and the most unlike its peers is The Justice George Lewis Ruffin Society. 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 35 years old; the field is 21. You back the established end — and your money leans older still.
The field is 21% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.4% lost their exemption, against 12% 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.
240 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. 240 of the 280 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
Showing your 200 largest grantees by grant value.
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 BLACKBAUD GIVING FUND ↗
- Who funds BOSTON SCHOOLS FUND ↗
- Who funds STEPPINGSTONE FOUNDATION INC ↗
- Who funds GIRLS INCORPORATED OF BOSTON AND LYNN ↗
- Who funds FRIENDS OF ST STEPHEN'S YOUTH PROGRAMS INC ↗
- Who funds SILVER LINING MENTORING INC ↗
- Who funds BOSTON COMMUNITY PEDIATRICS INC ↗
- Who funds INTERFAITH NEIGHBORS INC ↗
- Who funds UNITED STATES FUND FOR UNICEF ↗
- Who funds THE SALEM MISSION INC ↗
- Who funds SOCIEDAD LATINA INC ↗
- Who funds Boston Foundation Inc ↗
- Who funds THE JUSTICE GEORGE LEWIS RUFFIN SOCIETY ↗
- Who funds BRIDGE OVER TROUBLED WATERS INC ↗
- Who funds CASA ESPERANZA INC ↗
- Who funds DOC WAYNE INC ↗
- Who funds INTERNATIONAL INSTITUTE OF NEW ENGLAND INC ↗
- Who funds FATHERS UPLIFT INCORPORATED ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds PREPARATORY FOUNDATION INC ↗
- Who funds ARTISTS FOR HUMANITY INC ↗
- Who funds SQUASHBUSTERS INC ↗
- Who funds GREATER BOSTON LEGAL SERVICES INC ↗
- Who funds THE EPIPHANY SCHOOL INC ↗
- Who funds BREAKTIME UNITED INC ↗
- Who funds COOPERATIVE FOR ASSISTANCE AND RELIEF EVERYWHERE INC ↗
- Who funds ENGLISH FOR NEW BOSTONIANS INC ↗
- Who funds ZUMIX INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds ROSE FITZGERALD KENNEDY GREENWAY CONSERVANCY INC ↗
- Who funds Save The Children Federation Inc ↗
- Who funds NEW ENGLAND WILDLIFE CENTER 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: Eastern Bank Foundation · Boston Foundation Inc · Cummings Foundation Grants Inc (Fka Oneworld Boston Inc) · Liberty Mutual Foundation Inc · Riley Mabel Louise Tr Uwill · American Tower Corporation Foundation Inc · Yawkey Foundation II · The Cabot Family Charitable Trust · Barr Foundation · The Klarman Family Foundation · Fidelity Foundation · Highland Street Connection and Subsidiaries
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 Plymouth Rock Assurance 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.
- Employment Horizons Inc — 90% of income from government
- 180 Turning Lives Around — 61% of income from government
- Casa Esperanza Inc — 59% of income from government
- Health Law Advocates Inc — 52% of income from government
- Museum of African American History Inc — 43% of income from government
- The Home for Little Wanderers Inc — 38% of income from government
- Bridge Over Troubled Waters Inc — 32% of income from government
- Save the Children Federation Inc — 30% of income from government
- Girls Incorporated of Boston and Lynn — 28% of income from government
- International Institute of New England Inc — 24% of income from government
- United Way of Massachusetts Bay Inc — 23% of income from government
- Boston Medical Center Corporation — 23% of income from government
- Greater Boston Food Bank Inc — 22% of income from government
- Fathers Uplift Incorporated — 22% of income from government
- Sociedad Latina Inc — 15% of income from government
- Doc Wayne Inc — 15% of income from government
- Trustees of Boston University — 12% of income from government
- English for New Bostonians Inc — 11% of income from government
- Pine Street Inn Inc — 11% of income from government
- Project Citizenship Inc — 10% of income from government
- Boston Community Pediatrics Inc — 10% of income from government
- Silver Lining Mentoring Inc — 10% of income from government
- Volunteers in Medicine-Berkshires Inc — 10% of income from government
- Interfaith Neighbors Inc — 9% of income from government
- The Boston Landmarks Orchestra Inc — 9% of income from government
- Boston Health Care for the Homeless Program Inc — 8% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- The Shriners' Hospital for Children — 6% of income from government
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
- Zumix Inc — 5% of income from government
- Princeton Symphony Orchestra Inc — 4% of income from government
- Lunch Break Inc — 4% of income from government
- The Salem Mission Inc — 4% of income from government
- Planned Parenthood League of Massachusetts Inc — 3% of income from government
- Greater Boston Legal Services Inc — 3% of income from government
- United Way of Central Jersey Inc — 3% of income from government
- Trustees of Eliot School — 2% of income from government
- Cradles to Crayons Inc — 2% of income from government
- Jespy House Inc — 2% of income from government
- Artists for Humanity Inc — 2% of income from government
- Mahaiwe Performing Arts Center Inc — 2% of income from government
- Greater Boston Stage Company — 2% of income from government
- Inspire Arts and Music Inc — 1% of income from government
- New England Baptist Hospital — 1% of income from government
- Breaktime United Inc — 1% of income from government
- Wgbh Educational Foundation — 1% of income from government
- Rose Fitzgerald Kennedy Greenway Conservancy Inc — 1% of income from government
- Fairfield University — 1% of income from government
- Gordon College — 1% of income from government
- New England Wildlife Center Inc — 1% of income from government
- Hebrew Senior Life Inc — 0% of income from government
- Amherst College Trustees — 0% of income from government
- Insurance Library Association of Boston — 0% of income from government
- The Epiphany School Inc — 0% of income from government
- Pan-Massachusetts Challenge Inc — 0% of income from government
- Milton Academy — 0% of income from government
- Steppingstone Foundation Inc — 0% of income from government
- Wounded Warrior Project Inc — 0% of income from government
- Rutgers University Foundation — 0% of income from government
- Boston Foundation Inc — 0% of income from government
- Oxfam-America 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 The Plymouth Rock Assurance Foundation?
Find your warmest path to The Plymouth Rock Assurance 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.