· Private foundation
Katherine Olson 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 $10k1 grant · $1k
- $10k–50k2 grants · $20k
| Recipient | Amount |
|---|---|
| KUOW | $10,000 |
| Cascade Public Media | $10,000 |
| ALS Association | $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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 9%, against an area that typically sits at 7%. 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +67% since the first grant, against +12% for the ones you funded once.
11 repeat relationships — 2 still active in FY2025, 9 since wound down; 1 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, 95% of grant dollars renewed an existing relationship; $1k 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
- KPKUOW PUGET SOUND PUBLIC RADIO8× · 2017–2025 · $39k · revenue +67%
- CPCASCADE PUBLIC MEDIA5× · 2020–2025 · $29k · revenue +135%
- UOUNIVERSITY OF WASHINGTON FOUNDATION3× · 2018–2021 · $15k · revenue +46%
Funded once
- CFCommunity Fnd of South Puget Soundone grant, 2021 · $10k
- OSOregon State Universityone grant, 2019 · $5k
- BIBainbridge Island Museumone grant, 2017 · $5k
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 association of washington cities builds connections between our state's diverse cities and towns, while providing our members with the support needed to thrive through delivery of data-driven education, nationally recognized pooling…
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…
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 seattle public library foundation inspires the community's philanthropic support, advocacy for, and pride in the library.
See schedule okqed serves the people of northern california with a community-supported alternative to commercial media, providing the knowledge needed to make informed decisions; convening community dialogue; bringing the arts to everyone;…
We are a community of cpas and financial professionals cultivating authentic relationships, unique learning experiences, and purposeful advocacy for our future.
Kexp's mission is to enrich your life by championing music and discovery.
To promote public health, safety, and welfare through the improvement of the quality and quantity of drinking water and the development and furtherance of understanding of the problems relating thereto.
To present symphonic music of the highest quality in a distinctive way for the cultural enrichment, education, engagement and enjoyment of the people of our community.
American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…
Pursuing excellence in research learning and engagement to foster global citizenship and advance a sustainable and just society across British Columbia Canada and the world.
Connecting people across oregon and the pacific northwest through the power of a shared story.
For reference, the grantee most central to the portfolio’s shape is Cascade Public Media and the most unlike its peers is Lake Union Civic Orchestra. 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 36 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 KUOW PUGET SOUND PUBLIC RADIO ↗
- Who funds CASCADE PUBLIC MEDIA ↗
- Who funds UNIVERSITY OF WASHINGTON FOUNDATION ↗
- Who funds AARP FOUNDATION ↗
- Who funds THE CHOLANGIOCARCINOMA FOUNDATION ↗
- Who funds FOOD LIFELINE ↗
- Who funds THE EVERGREEN SCHOOL ↗
- Who funds PAGE AHEAD CHILDRENS LITERACY PRGM ↗
- Who funds AMYOTROPHIC LATERAL SCLEROSIS ASSN ↗
- Who funds UNIVERSITY OF ALASKA FOUNDATION ↗
- Who funds LAKE UNION CIVIC ORCHESTRA ↗
- Who funds George Pocock Rowing Foundation ↗
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: American Online Giving Foundation 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 Katherine Olson 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.
Warm introductions · Powered by PlinthPlus
How do I get to Katherine Olson Foundation?
Find your warmest path to Katherine Olson 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.