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Plinth

· Private foundation

Wissner-Slivka 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.

$1k
Granted FY2025still arriving
1
Grants FY2025still arriving
1
States reached
$1k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Health$1.4MEducation$350kHuman Services$147kYouth Development$75kArts & Culture$10kFood & Nutrition$5kEnvironment$500
02FY2025 · 1 grant

Where the money goes

Your grants by size, and where they go.

$1,000
Median grant
1
States reached
$1.6M
Total assets
Largest grants
RecipientAmount
KINDERING CENTER$1,000
02The need
03

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.

show:

Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 5% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.

area typical 9%PEACE FIRST INC: $25k → 16%CHILD MIND INSTITUTE: $5k → 17%JACQUES PEPIN FOUNDATION: $5k → 7%KINDERING CENTER: $31k → 9%PEACE FIRST INC: $25k → 16%KINDERING CENTER: $30k → 9%PEACE FIRST: $25k → 16%KINDERING CENTER: $25k → 9%KINDERING CENTER: $25k → 9%KINDERING CENTER: $20k → 9%KINDERING CENTER: $11k → 9%KINDERING CENTER: $2k → 9%KINDERING CENTER: $1k → 9%KINDERING CENTER: $1k → 9%KINDERING CENTER: $1k → 9%OVERLAKE HOSPITAL FOUNDATION: $250k → 9%OVERLAKE HOSPITAL FOUNDATION: $235k → 9%OVERLAKE HOSPITAL FOUNDATION: $105k → 9%OVERLAKE HOSPITAL FOUNDATION: $102k → 9%OVERLAKE HOSPITAL FOUNDATION: $37k → 9%OVERLAKE HOSPITAL FOUNDATION: $30k → 9%OVERLAKE HOSPITAL FOUNDATION: $15k → 9%OVERLAKE HOSPITAL FOUNDATION: $10k → 9%KIDSQUEST CHILDREN MUSEUM: $10k → 9%OVERLAKE HOSPITAL FOUNDATION: $5k → 9%BELLEVUE BOTANICAL GARDEN SOCIETY: $500 → 9%UNIVERSITY OF WASHINGTON: $150k → 9%UNIVERSITY OF WASHINGTON: $100k → 9%UNIVERSITY OF WASHINGTON: $100k → 9%FRED HUTCHINSON CANCER RESEARCH INSTITUTE: $200k → 9%FRED HUTCHINSON CANCER RESEARCH INSTITUTE: $100k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

03Your edge
repeat funding

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.

99%of every dollar goes to organizations you’ve funded before.
$2.0M · 6 repeat orgs$21k to everyone else

6 repeat relationships — 1 still active in FY2025, 5 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

6
4

Total granted

$2.0M
$21k

Median revenue growth · since first grant

+60%
+180%

Still filing today

67%
100%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
HealthEnvironmentYouth DevelopmentArts & CultureEmploymentOther

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

  • OH
    OVERLAKE HOSPITAL FOUNDATION
    7× · 2018–2024 · $790k · revenue +89%
  • SC
    Seattle Children's Foundation
    3× · 2021–2024 · $300k · revenue +60%
  • FH
    FRED HUTCHINSON CANCER RESEARCH CENTER
    2× · 2017–2019 · $300k · revenue +27%

Funded once

  • KC
    KIDSQUEST CHILDREN'S MUSEUMgraduated
    one grant, 2020 · $10k · revenue +180%
  • JP
    JACQUES PEPIN FOUNDATION THEgraduated
    one grant, 2022 · $5k · revenue +26%
  • CM
    CHILD MIND INSTITUTE INCgraduated
    one grant, 2017 · $5k · revenue +409%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

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.

1
Seattle Children's Guild Association

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.

2
Seattle Children's Hospital

Seattle children's hospital (seattle children's) will be an innovative leader in pediatric health and wellness through our unsurpassed quality, clinical care, relentless spirit of inquiry, and compassion for all children and their…

Health
3
The Association of Chrmc and University Physicians

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…

Health
4
Seattle Children's Healthcare System

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…

Health
5
Seattle Biomedical Research Institute

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,…

6
Childrens Museum of Southern Minnesota

Ignite the natural curiousity of every child through the power of play in a dynamic, awe-inspiring environment.

Arts & Culture
7
Pacific Science Center Foundation

Pacific science center (pacsci) ignites curiosity in every child and fuels a passion for discovery, experimentation, and critical thinking in all of us.

Arts & Culture
8
The Children's Hospital of Philadelphia

The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…

Health
9
Kqed Inc

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;…

Arts & Culture
10
Stony Brook Childrens Services University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
Children's Hospital Corporation

Provider of pediatric healthcare, education, research & community service

Health
12
The Childrens Museum

Boston children's museum engages children and families in joyful discovery experiences that instill an appreciation of our world, develop foundational skills, and spark a lifelong love of learning. boston children's museum is a welcoming,…

Arts & Culture

For reference, the grantee most central to the portfolio’s shape is Seattle Children's Foundation and the most unlike its peers is Bellevue Botanical Garden Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

9 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 9 of the 10 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.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
8/9
Grantees still filing
8/9
Grew since you first funded

Where your money sits — by cause, then by grantee

UNIVERSITY OF WASHINGTON — $350,000 · OtherUNIVERSITY OF WASHINGTONSeattle Children's Foundation — $300,000 · OtherSeattle Children's FoundationFRED HUTCHINSON CANCER RESEARCH CENTER — $300,000 · OtherFRED HUTCHINSON CANCER RESEARCH CENTERKINDERING CENTER — $147,000 · OtherKINDERING CENTEROVERLAKE HOSPITAL FOUNDATION — $790,000 · HealthOVERLAKE HOSPITAL FOUNDATION+1 more — $5,000 · HealthPEACE FIRST INC — $75,000 · Youth DevelopmentKIDSQUEST CHILDREN'S MUSEUM — $10,000 · Arts & CultureJACQUES PEPIN FOUNDATION THE — $5,000 · EmploymentBELLEVUE BOTANICAL GARDEN SOCIETY — $500 · Environment
Other$1,097,000Health$795,000Youth Development$75,000Arts & Culture$10,000Employment$5,000Environment$500

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ your share of their budgetOVERLAKE HOSPITAL FOUNDATION — $790,000 over 7y, 1.8% of budgetSeattle Children's Foundation — $300,000 over 3y, 0.1% of budgetFRED HUTCHINSON CANCER RESEARCH CENTER — $300,000 over 2y, 0.0% of budgetKINDERING CENTER — $147,000 over 9y, 0.1% of budgetPEACE FIRST INC — $75,000 over 3y, 1.8% of budgetKIDSQUEST CHILDREN'S MUSEUM — $10,000 over 1y, 0.7% of budgetJACQUES PEPIN FOUNDATION THE — $5,000 over 1y, 0.4% of budgetCHILD MIND INSTITUTE INC — $5,000 over 1y, 0.0% of budgetBELLEVUE BOTANICAL GARDEN SOCIETY — $500 over 1y, 0.1% of budget
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.

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.

Puget Sound Energy FoundationDE13.5× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Puget Sound Energy Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · American Online Giving Foundation Inc · The Bank of America Charitable Foundation Inc · 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 Wissner-Slivka 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.

2024
202122232425
no gov · 10%0%1%3%5%your share of their income ↑0%25%50%75%100%share of the org’s income from government
    no gov moneyreceives it· size = income
    1get no government money at all
    1report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    typical government reliance, FY2025

    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.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 10 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph