· Private foundation
Withycombe 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 |
|---|---|
| AMERICAN LEGION POST 91 | $5,000 |
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.
Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 100% of your 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.
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.
7 repeat relationships — 1 still active in FY2024, 6 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
- AHArizona Humane Society5× · 2017–2022 · $69k · revenue +137%
ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY3× · 2017–2021 · $31k · revenue +196%- HFHONORHEALTH FOUNDATION3× · 2017–2020 · $22k · revenue +31%
Funded once
- FCFIGHTER COUNTRY FOUNDATION INCgraduatedone grant, 2017 · $10k · revenue +161%
- CFCLARK FORK COALITIONone grant, 2021 · $5k · revenue +21%
- BRBITTER ROOT LAND TRUSTone grant, 2022 · $3k · revenue -9%
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 lead, serve and collaborate to mobilize enduring philanthropy for a better arizona.
The mission of the montana land reliance (mlr) is to partner with landowners to provide permanent protection for private lands that are significant for agricultural production, fish and wildlife habitat, and open space.
To perform the functions of, or to carry out the purposes of the arizona community foundation, an az nonprofit corporation, so long as the arizona community foundation, inc. remains a qualified organization.
Flathead land trust is dedicated to the conservation of northwest montana's land and water legacy through voluntary agreements with private land owners. flt's primary program service is private land conservation through voluntary…
Arizona land and water trust has been a trusted partner to ranchers and farmers of southern arizona for over 40 years. the trust achieves its mission to protect land and water by working with private landowners (continued on schedule o)who…
The university of arizona foundation is committed to supporting and enhancing the vision, mission and values of the university of arizona through the development and management of private support.
Inspire people to enjoy and protect birds through recreation, education, conservation, and restoration of the environment, upon which we all depend.
Wetlands america trust, inc. is a nonprofit organization formed in 1985 to expand ducks unlimited, inc's mission to provide leadership in the protection of the natural balance of wetlands ecosystems ensuring the future viability of…
The mission of the rocky mountain elk foundation (rmef) is to ensure the future of elk, other wildlife, their habitat and our hunting heritage. our mission includes four core programs; land protection and access, hunting heritage, habitat…
To represent, advance and protect the interests of arizona's member-owned, rural electric cooperatives.
The mission of the teton regional land trust is to conserve working farms and ranches, fish and wildlife habitat, and scenic open spaces in eastern idaho for this and future generations.
To coordinate the planning, development, and promotion of the arizona trail for recreational and educational experiences of nonmotorized trail users.
For reference, the grantee most central to the portfolio’s shape is Arizona Humane Society and the most unlike its peers is Darby Rodeo Association. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
12 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. 12 of the 16 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 Arizona Humane Society ↗
- Who funds TELLER WILDLIFE REFUGE INC ↗
- Who funds ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY ↗
- Who funds HONORHEALTH FOUNDATION ↗
- Who funds VALLEY OF THE SUN UNITED WAY ↗
- Who funds STOCK FARM GREATER RAVALLI FOUNDATION ↗
- Who funds FIGHTER COUNTRY FOUNDATION INC ↗
- Who funds CLARK FORK COALITION ↗
- Who funds BITTER ROOT LAND TRUST ↗
- Who funds DARBY RODEO ASSOCIATION ↗
- Who funds DIOCESAN COUNCIL FOR THE SOCIETY OF ST VINCENT DE PAUL DIOCESE PHOENIX ↗
- Who funds Teach for America 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: Siebel Family Charitable Foundation · 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 Withycombe 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.
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.