· Private foundation
The Prime Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k3 grants · $13k
- $10k–50k2 grants · $40k
- $50k–250k1 grant · $55k
| Recipient | Amount |
|---|---|
| MORGAN STANLEY GLOBAL IMPACT FUNDING TRUST INC | $54,983 |
| BRIDGE OF PROMISE | $25,000 |
| THE OVERLAKE SCHOOL | $15,000 |
| FRED HUTCHINSON CANCER RESEARCH CENTER | $5,000 |
| UC BERKELEY FOUNDATION | $5,000 |
| BRIDGE MINISTRIES | $2,500 |
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 (FY20–24, $79k) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 0% 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.
17 repeat relationships — 2 still active in FY2024, 15 since wound down; 4 grantees were first funded in FY2024 (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 FY2024, 28% of grant dollars renewed an existing relationship; $77k 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
- AHAmerican Heart Association Inc3× · 2018–2021 · $70k · revenue +26%
- BOBRIDGE OF PROMISE4× · 2020–2024 · $65k · revenue +188%
- HFHABITAT FOR HUMANITY EAST BAY SILICON VALLEY2× · 2020–2021 · $23k · revenue +15%
Funded once
- UOUNIVERSITY OF WASHINGTONone grant, 2018 · $68k
- SCSeattle Children's Foundationgraduatedone grant, 2021 · $51k · revenue +60%
- SCSEATTLE CHILDREN'S HOSPITALone grant, 2018 · $50k
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.
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.
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,…
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 humane promotes the human-animal bond by saving and serving pets in need, regardless of age, ability, circumstance or geography.
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…
To provide economic development financing to serve the needs of small businesses in the state of washington that would not qualify for private financing under conventional financing criteria.
Arcs foundation advances science and technology in the united states by providing financial awards to academically outstanding u.s. citizens studying to complete degrees in science, engineering and medical research.
Washington Bikes works to ensure that all who ride a bicycle in Washington have safe comfortable and convenient places to ride. Organization advocates for bicyclists rights and shapes policies.
Economic and community development through sport tourism. bid to host and create major sporting events, and facility consultation and optimization.
Seattle academy is a dynamic community that challenges students to question, imagine, and create in order to contribute to a changing world.
The mission of the silicon schools fund is to improve education through supporting the launch of excellent new schools, improving academic instruction in existing schools, and by funding some of the boldest innovations in education…
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…
For reference, the grantee most central to the portfolio’s shape is Seattle Foundation and the most unlike its peers is Tabu Traveling Baseball Team. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 39 years old; the field is 15. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 4% lost their exemption, against 12% 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.
72 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. 72 of the 104 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 American Heart Association Inc ↗
- Who funds BRIDGE OF PROMISE ↗
- Who funds FRED HUTCHINSON CANCER RESEARCH CENTER ↗
- Who funds Seattle Children's Foundation ↗
- Who funds HABITAT FOR HUMANITY SEATTLE-KING COUNTY ↗
- Who funds WASHINGTON STATE UNIVERSITY FOUNDATION ↗
- Who funds HABITAT FOR HUMANITY EAST BAY SILICON VALLEY ↗
- Who funds EQUAL JUSTICE INITIATIVE ↗
- Who funds RAINIER SCHOLARS ↗
- Who funds WESTERN COLORADO UNIVERSITY FOUNDATION ↗
- Who funds THE OVERLAKE SCHOOL ↗
- Who funds MARY'S PLACE SEATTLE ↗
- Who funds APPRENTICESHIP AND NONTRADITIONAL EMPLOYMENT FOR WOMEN ↗
- Who funds CALIFORNIA POLYTECHNIC STATE UNIVERSITY FOUNDATION ↗
- Who funds Fred Hutchinson Cancer Center ↗
- Who funds WASHINGTON TRAILS ASSOCIATION ↗
- Who funds ALL STARS PROJECT INC ↗
- Who funds CHICO CM EDUCATION FOUNDATION ↗
- Who funds Addario Lung Cancer Medical Institute ↗
- Who funds LAKE WASHINGTON COLLEGE FOUNDATION ↗
- Who funds SEATTLE FOUNDATION ↗
- Who funds UNITED WAY OF THE BAY AREA ↗
- Who funds WESTSOUND YOUTH BASKETBALL ASSOCIATION ↗
- Who funds NORTHWEST CENTER ↗
- Who funds THE BELLEVUE POLICE FOUNDATION ↗
- Who funds MISSION CITY COMMUNITY FUND ↗
- Who funds HOPELINK ↗
- Who funds ACE MENTOR PROGRAM OF WASHINGTON ↗
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: Seattle Foundation · Puget Sound Energy Foundation · United Way of King County · Credit Unions in the State of Washington · Glassybaby White Light Fund · Raikes Foundation · Real Progress Foundation · The Norcliffe Foundation · Bright Funds Foundation · McKinstry Charitable Foundation · The Albertsons Companies Foundation · M J Murdock Charitable Trust
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 The Prime 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.
- Best Buddies International Inc — 4% of income from government
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 The Prime Foundation?
Find your warmest path to The Prime 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.