· Private foundation
Manton 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 FY2020–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k2 grants · $3k
- $10k–50k3 grants · $57k
- $50k–250k37 grants · $4.3M
- $250k+33 grants · $29M
| Recipient | Amount |
|---|---|
| ST MARK'S SCHOOL OF SOUTHBOROUGH | $3,000,000 |
| MASSACHUSETTS INSTITUTE OF TECHNOLOGY | $2,614,517 |
| TUFTS UNIVERSITY | $2,300,000 |
| BOSTON CHILDREN'S HOSPITAL | $2,000,000 |
| THE TRUSTEES OF RESERVATIONS | $1,500,000 |
| MOUNT DESERT ISLAND HOSPITAL | $1,500,000 |
| BROAD INSTITUTE | $1,400,309 |
| THE NATURE CONSERVANCY | $1,254,287 |
| THE LIVESTOCK INSTITUTE OF SOUTHERN NEW ENGLAND | $1,215,371 |
| PRESIDENT AND FELLOWS OF HARVARD COLLEGE | $1,014,382 |
| NEW BEDFORD WHALING MUSEUM | $1,000,000 |
| COMMUNITY SERVINGS | $800,000 |
| BIOBUS INC | $749,528 |
| HALE EDUCATION | $700,000 |
| Individual grant recipient | $592,000 |
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 (FY22–24, $2.4M) land where the poverty rate runs at 15%, against an area that typically sits at 8%. 83% 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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 44% of Manton Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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 +31% since the first grant, against +15% for the ones you funded once.
63 repeat relationships — 34 still active in FY2024, 29 since wound down; 23 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, 67% of grant dollars renewed an existing relationship; $9.1M 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
- SASTERLING AND FRANCINE CLARK ART INSTITUTE2× · 2020–2021 · $10M · revenue +123%
Trustees of Tufts College3× · 2022–2024 · $7.5M · revenue +9%- TBThe Broad Institute Inc3× · 2020–2024 · $7.1M · revenue +44%
Funded once
- TTATEone grant, 2022 · $5.3M
- THTower Hill Botanic Gardenone grant, 2021 · $1.0M
- TMTufts Medical Centerone grant, 2021 · $1.0M
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.
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
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…
To preserve the unique character and natural resources of harvard.
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
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…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
Wheaton college provides a transformative liberal arts education, combining theory and practice, for intellectually curious students within a collaborative and vibrant extended community and network that values and strives to create an…
Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…
Our mission is to ensure that the people of greater boston benefit from a vibrant, resilient, and inclusive waterfront, harbor, and islands; these spaces are equitable, accessible, and adapted to climate change; and to ensure our public,…
For reference, the grantee most central to the portfolio’s shape is Our Sisters School and the most unlike its peers is Thacher & Straitsmouth Islands Association. 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 41 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) — 0% of your grantees by number, and just 0% 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.
102 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. 102 of the 138 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 DANA HALL SCHOOL ↗
- Who funds STERLING AND FRANCINE CLARK ART INSTITUTE ↗
- Who funds Trustees of Tufts College ↗
- Who funds The Broad Institute Inc ↗
- Who funds THE NATURE CONSERVANCY ↗
- Who funds ST MARK'S SCHOOL OF SOUTHBOROUGH INC ↗
- Who funds NATIONAL PHILANTHROPIC TRUST ↗
- Who funds WORCESTER ART MUSEUM ↗
- Who funds THE TRUSTEES OF RESERVATIONS ↗
- Who funds WESTPORT LAND CONSERVATION TRUST INC ↗
- Who funds Yale University ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds THE LIVESTOCK INSTITUTE OF SOUTHERN NEW ENGLAND INC ↗
- Who funds COMMUNITY SERVINGS INC ↗
- Who funds Fall River Historical Society ↗
- Who funds THE ASSOCIATION FOR RURAL AND SMALL LIBRARIES ↗
- Who funds Children's Hospital Corporation ↗
- Who funds Bradley Hospital Foundation ↗
- Who funds MOUNT DESERT ISLAND HOSPITAL ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds GREEN MOUNTAIN HORSE ASSOCIATION INC ↗
- Who funds BIOBUS INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds Old Dartmouth Historical Society ↗
- Who funds PLIMOTH PATUXET MUSEUMS INC ↗
- Who funds HALE EDUCATION INC ↗
- Who funds VOICES OF ASCENSION INC ↗
- Who funds THE LIVESTOCK CONSERVANCY 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: Southcoast Community Foundation Inc · Boston Foundation Inc · Bristol County Savings Charitable Foundation Inc · The Carney Family Charitable Foundation · Rockland Trust Charitable Foundation Inc · William E Schrafft and Bertha E Schrafft Charitable Trust · Combined Jewish Philanthropies of Greater Boston Inc · Philip Snyder Foundation · Island Foundation Inc · Amelia Peabody Charitable Fund Trust · Eastern Bank Foundation · Ibm International 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 Manton 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.
- Coastal Foodshed — 66% of income from government
- United Way of Greater New Bedford Inc — 35% of income from government
- Massachusetts Institute of Technology — 35% of income from government
- Samaritans Inc — 31% of income from government
- The Broad Institute Inc — 19% of income from government
- Greater New Bedford Community Health Center Inc — 13% of income from government
- Trustees of Tufts College — 13% of income from government
- Community Servings Inc — 12% of income from government
- City Year Inc — 11% of income from government
- Sudbury Valley Trustees Inc — 11% of income from government
- Children's Hospital Corporation — 10% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Whitehead Institute for Biomedical Research — 7% of income from government
- Old Sturbridge Inc — 4% of income from government
- Discovery Museum Inc — 3% of income from government
- Third Sector New England Inc — 3% of income from government
- Fall River Historical Society — 2% of income from government
- The Trustees of Reservations — 2% of income from government
- Old Dartmouth Historical Society — 2% of income from government
- Boys and Girls Clubs of Metrowest Inc — 2% of income from government
- Boston Children's Chorus Inc — 2% of income from government
- Plimoth Patuxet Museums Inc — 1% of income from government
- Worcester Art Museum — 1% of income from government
- Community Boating Center Inc — 1% of income from government
- Westport Historical Society Inc — 1% of income from government
- Uaspire Inc — 1% of income from government
- Year Up 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 Manton Foundation?
Find your warmest path to Manton 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.