· Private foundation
Dekker 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 FY2021–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k17 grants · $13k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| UNITED RELIGIONS & TRANSCULTURAL FAITH ALLIANCE FOUNDATION | $10,000 |
| AMERICANS UNITED FOR THE SEPARATION OF CHURCH & STATE | $2,500 |
| AFYA FOUNDATION | $1,000 |
| DOCTORS WITHOUT BOARDERS | $1,000 |
| MOUNT HOLYOKE COLLEGE | $1,000 |
| PALENSTINES CHILDRENS RELIEF FUND | $1,000 |
| MARTHAS VINEYARD HOSPITAL | $1,000 |
| BIG BROTHERS BIG SISTERS OF WESTCHESTER | $500 |
| OCEAN CONSERVANCY | $500 |
| GREENWICH HOSPITAL | $500 |
| BOYS & GIRLS CLUB OF NORTHERN WESTCHESTER | $500 |
| FEEDING WESTCHESTER | $500 |
| BETH-EL SYNAGOGUE | $500 |
| ISLAND GROWN INITIATIVE | $500 |
| NEW YORK PUBLIC RADIO | $500 |
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 (FY22–25, $10k) land where the poverty rate runs at 8%, against an area that typically sits at 9%. 20% 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.
13 repeat relationships — 8 still active in FY2025, 5 since wound down; 10 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, 31% of grant dollars renewed an existing relationship; $16k 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
- MVMARTHA'S VINEYARD COMMUNITY SERVICES INC2× · 2022–2023 · $8k · revenue +78%
- SLST LUKE'S FOUNDATION INC2× · 2021–2023 · $7k · revenue +14%
- GHGREENWICH HOSPITAL3× · 2023–2025 · $2k · revenue +7%
Funded once
- AFALZHEIMER'S FOUNDATION OF AMERICA INCone grant, 2022 · $6k · revenue +12%
- HHHARRY'S HEROESone grant, 2023 · $1k · revenue -69%
- NYNew York Universityone grant, 2024 · $500 · revenue 0%
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.
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…
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
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…
We educate the next generation of leaders to improve the health of our society.
Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship
As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.
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…
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."
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.
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.
Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…
Education, research, medical services and other public services.
For reference, the grantee most central to the portfolio’s shape is Feeding Westchester Inc and the most unlike its peers is Feeding America. 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 36 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 4% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 4% lost their exemption, against 13% 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.
25 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. 25 of the 35 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 MARTHA'S VINEYARD COMMUNITY SERVICES INC ↗
- Who funds ST LUKE'S FOUNDATION INC ↗
- Who funds ALZHEIMER'S FOUNDATION OF AMERICA INC ↗
- Who funds PAWS CROSSED ANIMAL RESCUE INC ↗
- Who funds THE AFYA FOUNDATION OF AMERICA INC ↗
- Who funds THE TRUSTEES OF MOUNT HOLYOKE COLLEGE ↗
- Who funds GREENWICH HOSPITAL ↗
- Who funds HARRY'S HEROES ↗
- Who funds BOYS & GIRLS CLUB OF NORTHERN WESTCHESTER ↗
- Who funds NEW YORK PUBLIC RADIO ↗
- Who funds BYRAM HILLS EDUCATION FOUNDATION INC ↗
- Who funds OCEAN CONSERVANCY ↗
- Who funds FEEDING WESTCHESTER INC ↗
- Who funds HANDS UP FOR HAITI INC ↗
- Who funds PAN-MASSACHUSETTS CHALLENGE INC ↗
- Who funds New York University ↗
- Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds ISLAND GROWN INITIATIVE LTD ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds QUINNIPIAC UNIVERSITY ↗
- Who funds HUDSON RIVER SLOOP CLEARWATER INC ↗
- Who funds UNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE FOUNDATION INC ↗
- Who funds BUILDING ONE COMMUNITY CORP ↗
- Who funds FRIENDS OF THE NORTH CASTLE PUBLIC LIBRARY INC ↗
- Who funds Feeding America ↗
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: Jewish Communal Fund · The Pfizer Foundation Inc · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Dekker 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.
- Trustees of Boston University — 12% of income from government
- Martha's Vineyard Community Services Inc — 3% of income from government
- The Trustees of Mount Holyoke College — 1% of income from government
- Quinnipiac University — 0% of income from government
- St Luke's Foundation Inc — 0% of income from government
- Island Grown Initiative Ltd — 0% of income from government
- Greenwich Hospital — 0% of income from government
- Pan-Massachusetts Challenge 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 Dekker Foundation?
Find your warmest path to Dekker 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.