· Private foundation
Cardinal Brook Trust
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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k5 grants · $24k
- $10k–50k3 grants · $70k
- $50k–250k1 grant · $90k
- $250k+3 grants · $2.1M
| Recipient | Amount |
|---|---|
| JOHNSON FAMILY GIFT FUND - BANK OF AMERICA CHARITABLE GIFT FUND | $1,000,000 |
| MT GRACE LAND TRUST | $600,000 |
| MASS GENERAL | $500,000 |
| MARTHA'S VINEYARD VISION FELLOWSHIP | $90,000 |
| HARVARD COLLEGE SCHOOLYARD PROJECT | $40,000 |
| THE VILLAGE SCHOOL ON THE COMMON | $20,000 |
| QUABBIN FOOD CONNECTOR | $10,000 |
| ISLAND HOUSING TRUST | $8,379 |
| STILLPOINT MARTHA'S VINEYARD INC | $5,000 |
| NEW ENGLAND PUBLIC RADIO | $5,000 |
| TRI-PARISH COMMUNITY CHURCH | $5,000 |
| MARTHA'S VINEYARD COMMUNITY SERVICES | $1,000 |
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 (FY17–24, $14k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 71% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +56% since the first grant, against +24% for the ones you funded once.
63 repeat relationships — 9 still active in FY2024, 54 since wound down; 3 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, 34% of grant dollars renewed an existing relationship; $1.5M 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
- EQEAST QUABBIN LAND TRUST INC5× · 2017–2021 · $620k · revenue +273% · 50% of their budget
- MVMARTHA'S VINEYARD FISHERMEN'S PRESERVATION TRUST INC2× · 2017–2019 · $139k · revenue +11%
- IHISLAND HOUSING TRUST CORPORATION6× · 2017–2024 · $129k · revenue +248%
Funded once
- IGISLAND GROWN INITIATIVE LTDgraduatedone grant, 2021 · $115k · revenue +71%
EMERSON COLLEGEone grant, 2021 · $60k · revenue +23%- LFLISTENING FOR QUABBIN COMPOSTINGone grant, 2018 · $30k
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.
To cultivate and develop an expansive collection of trees, gardens, and plants for all to explore, enjoy and study; and to provide through education and stewardship, a greener, healthier, more beautiful environment.
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The wildlands trust works throughout southeastern massachusetts to conserve and permanently protect native habitats, farmland, and lands of high ecologic and scenic value that serve to keep our communities healthy and our residents…
To preserve the unique character and natural resources of harvard.
The martha's vineyard agricultural society supports a resilient and sustainable agricultural community on martha's vineyard. we do this by:- offering services, education, marketing, and technical support for farmers and farmworkers on the…
Conservation and preservation of land.
To preserve the rural new england character of williamstown, ma and surrounding areas for future generations; enable working landscapes including farms and forests; promote land stewardship.
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 franklin land trust works to conserve farms, forests, wildlands, and other natural resources significant to the quality of the environment, economy, and rural character of western massachusetts.
Sudbury valley trustees, inc. ("the organization") works to protect natural areas and farmland for wildlife and people in the 36 communities that surround the sudbury, assabet, and concord rivers. the organization cares for some of the…
For reference, the grantee most central to the portfolio’s shape is Sheriff's Meadow Foundation and the most unlike its peers is Petersham Memorial Library. 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) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 1% 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.
61 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. 61 of the 112 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 BANK OF AMERICA CHARITABLE GIFT FD ↗
- Who funds MARLBORO COLLEGE ↗
- Who funds EAST QUABBIN LAND TRUST INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds MARTHA'S VINEYARD FISHERMEN'S PRESERVATION TRUST INC ↗
- Who funds ISLAND HOUSING TRUST CORPORATION ↗
- Who funds ISLAND GROWN INITIATIVE LTD ↗
- Who funds SHERIFF'S MEADOW FOUNDATION ↗
- Who funds Henry Heywood Memorial Hospital ↗
- Who funds TERRACORPS INC ↗
- Who funds MARTHA'S VINEYARD PRESERVATION TRUST INC ↗
- Who funds FORWARD IN HEALTH INC ↗
- Who funds The Farm School Inc ↗
- Who funds EMERSON COLLEGE ↗
- Who funds HEIFER PROJECT INTERNATIONAL ↗
- Who funds PETERSHAM MEMORIAL LIBRARY ↗
- Who funds BIODIVERSITYWORKS INC ↗
- Who funds Friends of Acadia ↗
- Who funds SOUTHWEST GA PROJECT FOR COMMUNITY EDUCATION INC ↗
- Who funds SWARTHMORE COLLEGE ↗
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: The Kohlberg Foundation Inc · Boston Foundation Inc · South Mountain Company Foundation · Tower Family Fund Inc · Martha's Vineyard Bank Charitable Foundation Inc · Martha's Vineyard Community Foundation Inc · Swartz Foundation Trust · Impactassetsinc · Stonehouse Inc · Mv Vision Fellowship Fund · Henry & Anne Garfinkle Foundation Inc · Mazar Family Charitable Foundation Trust
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 Cardinal Brook Trust 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.
- Cooperative Development Institute Inc — 58% of income from government
- Martha's Vineyard Community Foundation Inc — 34% of income from government
- Petersham Craft Center Inc — 13% of income from government
- Trustees of Boston University — 12% of income from government
- The Farm School Inc — 12% of income from government
- East Quabbin Land Trust Inc — 9% of income from government
- 1794 Meetinghouse Inc — 7% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Hospice of Martha's Vineyard Inc Dba Hospice and Palliative Care of Martha's — 5% of income from government
- Martha's Vineyard Preservation Trust Inc — 4% of income from government
- Martha's Vineyard Community Services Inc — 3% of income from government
- Sheriff's Meadow Foundation — 2% of income from government
- The Trustees of Reservations — 2% of income from government
- Island Housing Trust Corporation — 1% of income from government
- Massachusetts Audubon Society Inc — 1% of income from government
- Biodiversityworks Inc — 0% of income from government
- Hartford Symphony Orchestra Inc — 0% of income from government
- Emerson College — 0% of income from government
- Island Grown Initiative Ltd — 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.