· Private foundation
Mathieson Family 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| THE SAVOY COMPANY ENDOWMENT | $7,000 |
| SWEETWATER SPECTRUM | $5,000 |
| DEERWOOD FOUNDATION | $5,000 |
| THE ARTS COUNCIL OF BIG SKY | $5,000 |
| SQUAM LAKES CONSERVATION SOCIETY | $5,000 |
| STENTON | $5,000 |
| PITTSBURGH CULTURAL TRUST | $5,000 |
| BIG SKY YOUTH EMPOWERMENT | $5,000 |
| SQUAM LAKES ASSOCIATION | $2,500 |
| CONNECTICUT COLLEGE | $2,500 |
| BUCKNELL UNIVERSITY | $2,500 |
| YELLOW DOG COMMUNITY & CONSERVATION FOUNDATION | $2,500 |
| FRIENDS OF HOLDERNESS LIBRARY | $2,500 |
| GALLATIN RIVER TASK FORCE | $2,500 |
| SQUAM LAKES NATURAL SCIENCE CENTER | $2,500 |
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 (FY17–24, $25k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 38% 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.
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.
31 repeat relationships — 17 still active in FY2024, 14 since wound down; 1 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, 97% of grant dollars renewed an existing relationship; $2k 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
- SLSQUAM LAKES CONSERVATION SOCIETY6× · 2017–2024 · $42k · revenue +23%
- MBMANCHESTER BIDWELL CORPORATION5× · 2017–2022 · $41k · revenue +17%
- LPLoon Preservation Committee4× · 2019–2022 · $33k · revenue +1%
Funded once
- ARAspinwall Riverfront Park Incone grant, 2023 · $5k · revenue -43%
- SHSecond Harvestone grant, 2020 · $3k · revenue -42%
- THTHE HISTORY HUNTERS YOUTH REPORTER GROUPone grant, 2020 · $3k
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 zoological society of pittsburgh is dedicated to being a leader in, and significant contributor to, the conservation of endangered and threatened species. the society provides an enjoyable family experience that fosters understanding,…
Our mission is conserving West Michigans ecologically critical land. We protect land by creating public nature preserves, providing support to communities and local governments in creating natural areas, and helping private landowners…
Provides innovative education in a dynamic urban setting. dedicated to academic excellence and community engagement,we prepare students of diverse backgrounds with the knowledge, skill,and experience to lead meaningful lives as informed…
The Allegheny County Conservation District is an urban conservation district that engages and leads through partnerships, innovation, and implementation to conserve, promote, and improve Allegheny Countys natural resources.
To protect and preserve the Wentworth-Crescent Watershed through initiatives that enhance water quality, land conservation and community education.
Gettysburg college is a residential, undergraduate college of the liberal arts and sciences.
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…
We improve quality of life by enhancing and stewarding pittsburgh's parks in partnership with the community.
Wilson college empowers students to be confident and critical thinkers, creative visionaries, effective communicators, honorable leaders, and agents of justice.
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.
To protect, preserve, and promote the scenic resources of southwestern pennsylvania.
As a designated national and state heritage area, susquehanna heritage corporation works to raise awareness and appreciation of the cultural and economic value of the susquehanna riverlands, and preserve, enhance and celebrate the area's…
For reference, the grantee most central to the portfolio’s shape is The Mentoring Partnership of Sw Pa and the most unlike its peers is Clemente Collection At Engine House 25. 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 38 years old; the field is 20. You back the established end — and your money leans older still.
The field is 18% 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 9% 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.
32 grantees tracked through their own filings, 2017–2026.
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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 32 of the 47 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 SQUAM LAKES CONSERVATION SOCIETY ↗
- Who funds MANCHESTER BIDWELL CORPORATION ↗
- Who funds Loon Preservation Committee ↗
- Who funds SQUAM LAKES NATURAL SCIENCE CENTER ↗
- Who funds PITTSBURGH CULTURAL TRUST ↗
- Who funds Bucknell University ↗
- Who funds SWEETWATER SPECTRUM INC ↗
- Who funds ARTS COUNCIL OF BIG SKY ↗
- Who funds THE ELLIS SCHOOL ↗
- Who funds SQUAM LAKES ASSOCIATION ↗
- Who funds Yellow Dog Community and Conservation Foundation ↗
- Who funds BIG SKY YOUTH EMPOWERMENT PROJECT INC ↗
- Who funds CONNECTICUT COLLEGE ↗
- Who funds THE MENTORING PARTNERSHIP OF SW PA ↗
- Who funds Gallatin River Task Force ↗
- Who funds SHADY SIDE ACADEMY ↗
- Who funds Aspinwall Riverfront Park Inc ↗
- Who funds BIG SKY COMMUNITY ORGANIZATION ↗
- Who funds BETSYS PARK ↗
- Who funds UNITED SOUTH END SETTLEMENTS ↗
- Who funds THE PITTSBURGH PROMISE FOUNDATION ↗
- Who funds FAMILY RESOURCES ↗
- Who funds Second Harvest ↗
- Who funds THE CREFELD SCHOOL ↗
- Who funds AUDUBON SOCIETY OF WESTERN PA ↗
- Who funds 10000 DEGREES ↗
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: Hillman Family Foundations · The Burke Foundation · The Burke Family Foundation · The Simpson Family Foundation U/A Dtd 10/19/1999 · Charles R Burke Jr Foundation · The Double Eagle Foundation 4191-06-43 · Lovett-Woodsum Foundation Inc · Tosa Foundation · The Pittsburgh Foundation · Richard King Mellon Foundation · Boston Foundation Inc · New Hampshire Charitable 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 Mathieson 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 or a single department — and drag the year to watch it move.
- Connecticut College — 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 Mathieson Family Foundation?
Find your warmest path to Mathieson 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.