· Private foundation
Anderson 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 $10k6 grants · $21k
- $10k–50k15 grants · $366k
- $50k–250k16 grants · $1.2M
- $250k+1 grant · $250k
| Recipient | Amount |
|---|---|
| FRED HUTCHINSON CANCER RESEARCH CENTER | $250,000 |
| SALK INSTITUTE | $150,000 |
| UW FOUNDATION FBO HARBORVIEW MEDICAL CENTER | $100,000 |
| KINDERING CENTER | $100,000 |
| PEDIATRIC INTERIM CARE CENTER | $100,000 |
| OVERLAKE HOSPITAL FOUNDATION | $100,000 |
| UW MEDICINE MEMORY & BRAIN WELLNESS CENTER | $100,000 |
| SALVATION ARMY | $80,000 |
| EVERGREEN HEALTH FOUNDATION | $60,000 |
| BELLEVUE BOYS AND GIRLS CLUB | $60,000 |
| YWCA | $60,000 |
| WHITMAN COLLEGE | $50,000 |
| RYTHER CHILD CENTER | $50,000 |
| SEATTLE CHILDRENS | $50,000 |
| OLIVE CREST | $50,000 |
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 (FY17–25, $908k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 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.
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 +56% since the first grant, against +43% for the ones you funded once.
54 repeat relationships — 30 still active in FY2025, 24 since wound down; 8 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, 90% of grant dollars renewed an existing relationship; $191k 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
- OHOVERLAKE HOSPITAL FOUNDATION8× · 2018–2025 · $710k · revenue +89%
- KCKINDERING CENTER8× · 2017–2025 · $685k · revenue +92%
- BBBELLEVUE BOYS & GIRLS CLUBS INC9× · 2017–2025 · $465k · revenue +74%
Funded once
- UMUW MEMORY & BRIAN WELLNESSone grant, 2023 · $100k
- HMHARBORVIEW MEDICAL CENTERone grant, 2017 · $75k
- YYMCAone grant, 2018 · $65k
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.
Seattle humane promotes the human-animal bond by saving and serving pets in need, regardless of age, ability, circumstance or geography.
We take a joyful, community-oriented approach to raising engaged citizens, deep learners, and brave adventurers with the skills, creativity, and heart needed to better the world.
Seattle children's healthcare system (schs) is engaged in activities relating to the provision of health care services to infants, children, and adolescents, delivering and improving the delivery and the quality of those services through…
Children's university medical group (cumg) is the non-profit pediatric group practice established to support the academic, research and clinical missions of its corporate members, university of washington school of medicine (uwsom) and…
Hutch Kids Child Care Center's mission is to provide quality, on-site child care services to the employee families of Fed Hutchinson Cancer Center, the University of Washington, their partners, and families from the community.
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…
Seattle children's guild association advocates for seattle children's hospital through volunteer, philanthropic and community endeavors to ensure hope, excellent care and advanced cures for children.
Community health center of snohomish county (chc) provides our diverse communities with access to high quality, affordable primary health care.
Building changes advances equitable responses to homelessness in washington state, with a focus on children, youth, and families. we work at the intersection of housing, education, and health systems, partnering with communities and public…
School's out washington (sowa) drives positive systemic change so that all washington's children and youth, particularly those furthest from justice, have access to a robust ecosystem of high-quality expanded learning programs.
To provide exceptional reproductive and complementary health care services, honest education, and advocacy for all.
We conduct fundamental infectious disease research to generate critical new knowledge about pathogens and their interactions with see schedule o for continuationhumans to enable the discovery and development of novel interventions,…
For reference, the grantee most central to the portfolio’s shape is Childrens Home Society of Washington and the most unlike its peers is Cush It to the Limit. 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 40 years old; the field is 15. You back the established end — and your money leans older still.
The field is 23% 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 14% 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.
49 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. 49 of the 86 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 FRED HUTCHINSON CANCER RESEARCH CENTER ↗
- Who funds Pediatric Interim Care Center ↗
- Who funds OVERLAKE HOSPITAL FOUNDATION ↗
- Who funds KINDERING CENTER ↗
- Who funds BELLEVUE BOYS & GIRLS CLUBS INC ↗
- Who funds BOARD OF TRUSTEES OF WHITMAN COLLEGE ↗
- Who funds EVERGREENHEALTH FOUNDATION ↗
- Who funds AMARA ↗
- Who funds OLIVE CREST ↗
- Who funds EASTSIDE ACADEMY ↗
- Who funds College Success Foundation ↗
- Who funds CHILDHAVEN ↗
- Who funds Boyer Children's Clinic ↗
- Who funds TUCKER MAXON SCHOOL ↗
- Who funds Pacific Lutheran University ↗
- Who funds INDEPENDENT COLLEGES OF WASHINGTON ↗
- Who funds HERITAGE UNIVERSITY ↗
- Who funds TREEHOUSE ↗
- Who funds CAMP KOREY ↗
- Who funds NORTHWEST EDUCATION ACCESS ↗
- Who funds HEARING SPEECH AND DEAFNESS CENTER DBA HEARING SPEECH AND DEAF CENTER ↗
- Who funds LITTLE BIT THERAPEUTIC RIDING CENTER ↗
- Who funds FRIENDS OF FSH RESEARCH ↗
- Who funds Brightspark Early Learning Services ↗
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: Puget Sound Energy Foundation · Seattle Foundation · The Norcliffe Foundation · United Way of King County · Medina Foundation · Grousemont Foundation · Moccasin Lake Foundation · Liberty Mutual Foundation Inc · NW Childrens Foundation · Employees Community Fund of Boeing-Puget Sound · Lucky Seven Foundation · Elizabeth a Lynn 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 Anderson 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 Anderson Foundation?
Find your warmest path to Anderson 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.