· Private foundation
The Hayden Family 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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| TUNBRIDGE VOLUNTEER FIRE DEPARTMENT | $1,000 |
| TUNBRIDGE LIBRARY | $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 (FY17–17, $500) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 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.
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 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…
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
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…
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…
Northeast wilderness trust is a regional land trust working to preserve and restore forever-wild landscapes for nature and people in new york, vermont, new hampshire, maine, massachusetts and connecticut.
To preserve and protect land surrounding the appalachian trail in maine for public benefit.
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.
The adirondack council ensures the ecological integrity (clean water and air, wildlife habitat, etc.), wild character (solitude, scenic beauty, etc.), and vibrant communities of new york's six-million-acre adirondack park. the adirondack…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Protect land along rivers, lakes and wetlands of vt; protect public access, wildlife habitat, scenic natural beauty, and ecological integrity.
Overview - founded in boston by pioneering landscape architect and open space visionary charles eliot in 1891, the trustees is the nation's first and the commonwealth's largest conservation and preservation nonprofit.
To preserve the unique character and natural resources of harvard.
For reference, the grantee most central to the portfolio’s shape is Social and Environmental Entrepreneurs (See) Inc and the most unlike its peers is New Israel Fund. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
20 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. 20 of the 34 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 Ocean Alliance Inc ↗
- Who funds VERMONT LAND TRUST INC ↗
- Who funds NETWORK FOR GOOD ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds ALLIANCE FOR VERMONT COMMUNITIES INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds TUNBRIDGE VOLUNTEER FIRE DEPARTMENT INC ↗
- Who funds Families in Transition ↗
- Who funds PISCATAQUOG LAND CONSERVANCY ↗
- Who funds THE HOME FOR LITTLE WANDERERS INC ↗
- Who funds THE ACCESS FUND ↗
- Who funds SAVE A FRIEND TO HOMELESS ANIMALS ↗
- Who funds FENWAY COMMUNITY HEALTH CENTER INC ↗
- Who funds ALPINE ASCENTS FOUNDATION ↗
- Who funds SOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC ↗
- Who funds PROTECT OUR WINTERS ↗
- Who funds SOCIETY FOR THE PRESERVATION OF NEW ENGL ↗
- Who funds COAST GUARD FOUNDATION INC ↗
- Who funds THE BRIDGE ACADEMY INC ↗
- Who funds NEW ISRAEL FUND ↗
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: 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 The Hayden Family 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.
- Vermont Land Trust Inc — 42% of income from government
- The Home for Little Wanderers Inc — 38% of income from government
- Fenway Community Health Center Inc — 27% of income from government
- Trustees of Boston University — 12% of income from government
- Society for the Preservation of New Engl — 2% 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 Hayden Family Foundation?
Find your warmest path to The Hayden Family 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.