· Private foundation
Thrasher Koffey 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.
By grant size · FY2025
- Under $10k15 grants · $44k
- $10k–50k5 grants · $71k
| Recipient | Amount |
|---|---|
| WOOD RIVER LAND TRUST | $20,000 |
| MONTAGE HEALTH FOUNDATION | $20,000 |
| FRED HUTCHINSON CANCER CENTER | $11,425 |
| CARMEL PUBLIC LIBRARY FOUNDATION | $10,000 |
| HUNGER COALITION | $10,000 |
| THE ARGYROS | $8,000 |
| SUN VALLEY MUSIC FESTIVAL | $6,000 |
| PRESERVE COMMUNITY FOUNDATION | $5,000 |
| WOOD RIVER YMCA | $5,000 |
| Individual grant recipient | $2,500 |
| HEBREW HOME FOR THE AGED | $2,500 |
| THE ADVOCATES | $2,500 |
| ARCH COMMUNITY HOUSING | $2,500 |
| THE SPACE IDAHO | $2,500 |
| WOOD RIVER WOMEN'S FOUNDATION | $1,600 |
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, $15k) land where the poverty rate runs at 9%, against an area that typically sits at 12%. 26% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +31% since the first grant, against +24% for the ones you funded once.
40 repeat relationships — 16 still active in FY2025, 24 since wound down; 3 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, 88% of grant dollars renewed an existing relationship; $14k 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
- WRWOOD RIVER LAND TRUST CO9× · 2017–2025 · $190k · revenue +121%
- BCBLAINE COUNTY HUNGER COALITION INC8× · 2017–2025 · $148k · revenue +172%
- FHFRED HUTCHINSON CANCER RESEARCH CENTER5× · 2017–2021 · $110k · revenue +27%
Funded once
- UOUNIVERSITY OF WASHINGTON FOUNDATIONone grant, 2020 · $25k · revenue +7%
- SLSANTA LUCIA CONSERVANCYgraduatedone grant, 2017 · $13k · revenue +203%
- WPWASHINGTON PERFORMING ARTS SOCIETYgraduatedone grant, 2019 · $10k · revenue +36%
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 purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…
The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.
To promote philanthropy to make santa cruz county a better place to live, now and in the future.we bring together people, ideas, and resources to inspire philanthropy and accomplish great things.
Protecting our shrub-steppe and connecting people to this vanishing landscape.
Life science washington is a non-profit trade and professional association dedicated to promoting innovation and responsible growth in the life sciences and biomedical industries in the state of washington. promotion and education are…
Western rivers conservancy's mission is to protect outstanding river ecosystems in the western united states. continued on schedule o.we acquire land to conserve critical habitat, provide public access for compatible use and enjoyment, and…
Siff is a seattle-based 501(c)(3) arts nonprofit dedicated to the creation of vibrant experiences and spaces that champion film discovery and arts education.
Our mission is to protect the rural nature of Wallowa County by working cooperatively with private landowners,indigenous people, local communities and governmental entities to conserve land.
Sierra watch secures conservation outcomes to protect the natural resources, mountain communities, and timeless values of the tahoe sierra.
Summit land conservancy works with utah communities to conserve land and water for the benefit of the people and nature.
To preserve and enhance natural ecosystems, scenic areas, open spaces, fish and wildlife habitat within deschutes basin.
Preserve in perpetuity the natural habitats, rural landscapes, and open spaces of the great peninsula of washington's puget sound.
For reference, the grantee most central to the portfolio’s shape is Sun Valley Center for the Arts Inc and the most unlike its peers is San Francisco Jazz Organization. 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 26 years old; the field is 13. You back the established end — and your money leans older still.
The field is 25% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 2% lost their exemption, against 18% 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.
48 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. 48 of the 92 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 WOOD RIVER LAND TRUST CO ↗
- Who funds BLAINE COUNTY HUNGER COALITION INC ↗
- Who funds FRED HUTCHINSON CANCER RESEARCH CENTER ↗
- Who funds WOOD RIVER WOMEN'S FOUNDATION ↗
- Who funds SUN VALLEY SUMMER SYMPHONY INC ↗
- Who funds Big Sur Land Trust ↗
- Who funds Fred Hutchinson Cancer Center ↗
- Who funds MONTAGE HEALTH FOUNDATION ↗
- Who funds BALLET SUN VALLEY INC ↗
- Who funds PRESERVE COMMUNITY FOUNDATION ↗
- Who funds UNIVERSITY OF WASHINGTON FOUNDATION ↗
- Who funds Wood River Community Young Men's Christian Association Inc ↗
- Who funds WASHINGTON WOMEN'S FOUNDATION ↗
- Who funds SANTA LUCIA CONSERVANCY ↗
- Who funds SUN VALLEY CENTER FOR THE ARTS INC ↗
- Who funds ARCH COMMUNITY HOUSING TRUST INC ↗
- Who funds LITTLE SISTERS FUND INC ↗
- Who funds WASHINGTON PERFORMING ARTS SOCIETY ↗
- Who funds CARMEL PUBLIC LIBRARY FOUNDATION ↗
- Who funds The Space Idaho Inc ↗
- Who funds BLAINE COUNTY SENIORS COUNCIL INC THE SENIOR CONNECTION ↗
- Who funds ST LUKE'S WOOD RIVER FOUNDATION INC ↗
- Who funds DESERT SCHOLARSHIP FOUNDATION ↗
- Who funds MEN'S SECOND CHANCE LIVING ↗
- Who funds Barred Business Foundation ↗
- Who funds The Hebrew Home for Aged at Riverdale ↗
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: Boswell Family Foundation · Idaho Community Foundation Inc · Spur Community Foundation Inc · The Bessemer Giving Fund · The Pesky Family Foundation Inc · The Springcreek Foundation · Nancy Eccles and Homer M Hayward Family Foundation · St Luke's Health System Ltd · The Debard Johnson Foundation Inc · The Nalen Foundation · Kemmerer Family Foundation · Hull Family 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 Thrasher Koffey 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.
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Find your warmest path to Thrasher Koffey 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.