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· Public charity
HEALTHCARE FOUNDATION NORTHERN SONOMA county is a non-profit organization raising funds from the community to support healthcare programs and projects in northern sonoma county.
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 57% of HEALTHCARE FOUNDATION NORTHERN SONOMA’s grantee dollars go to organizations outside the IRS cause taxonomy (common for large international and research funders), so a chart would be mostly “unclassified” and misrepresent the portfolio.
Beneath the NTEE codes, this is what the grant descriptions actually say.
…and in their own words, year by year
Words distinctive to each year’s grant purposes (TF-IDF) · event-driven terms in cyan.
Your grants by size, and where they go.
By grant size · FY2024
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, $704k) land where the poverty rate runs at 9% — the area typically sits at 10%. 4% of those dollars reach neighborhoods with above-average need. 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 line in 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, United Way ALICE — shown as context about the area, never attributed to your giving.
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
14 repeat relationships — 8 still active in FY2024, 6 since wound down; 7 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, 68% of grant dollars renewed an existing relationship; $215k 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.
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 Santa Rosa Community Health Centers are dedicated to providing excellent, comprehensive primary health care, prevention, and health education for people who are uninsured and underinsured in Santa Rosa, regardless of ability to pay.
The Mission of Sonoma Ecology Center is to work with our community to enhance and sustain ecological health in the Sonoma valley.
Puertas Abiertas Community Resource Center's goal is to empower Latino families in Napa County to make positive changes by facilitating access to health and social services that will contribute to preserving their families, developing…
Clinica de Salud de Valle de Salinas is dedicated to providing comprehensive healthcare to the men, women, and children with an emphasis on working with farmworker families and the agriculture community.
To promote health equity by advocating for public policies and sufficient resources to address the health needs of communities of color.
Living Gods love by inspiring health, wholeness and hope.
The mission of solano coalition for better health is to improve the health and quality of life of communities, neighborhoods and the people of solano county by providing leadership, focusing on resources and developing partnerships.
The Big Sur Health Center exists to serve the health and wellness needs of the Big Sur community by providing quality healthcare through traditional and complementary approaches that are culturally sensitive and center on patient needs.
The Solano Community Foundation strengthens Solano County by advancing equity, supporting nonprofit resilience, and expanding access to philanthropy. We serve as a community leader, responsive grantmaker, and trusted partner for donors who…
To provide health care services to socially and economically depressed sectors of the southern San Joaquin Valley in California.
Homes for Sonoma is a nonprofit developer creating quality workforce housing options that support safe and sustainable community, and finds efficient, scalable solutions to address the housing crisis in Sonoma County and throughout…
To serve our community by providing direct access to sustainable sources of fresh produce and other unique foods, and provide education about food issues, both local and beyond.
For reference, the grantee most central to the portfolio’s shape is Healthcare Foundation Northern Sonoma and the most unlike its peers is Sonoma State University Foundation. 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 25 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) — 3% of your grantees by number, and just 8% of your money.
The orgs you fund almost never close — 2% lost their exemption, against 11% 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.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.
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
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.
Open a dossier: Sonoma County Community Foundation · Sonoma County Vintners Foundation · Kaiser Foundation Hospitals · McNabb Foundation · Sutter Bay Hospitals · Community Action Partnership Of · United Way of the Wine Country · Marin Community Foundation · Bothin Foundation · St Joseph Health Northern California · Latino Community Foundation · Speedway Children's Charities
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.
Every dot is one organisation HEALTHCARE FOUNDATION NORTHERN SONOMA 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. 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.
Through Plinth
This dossier was generated cold from public filings. In Plinth it’s a working system — every applicant assessed and every grant monitored. Here’s a taste, run on one of your grantees: ON THE MARGINS INC.
Agentic due diligence · confidence × risk
~7 months of operating runway; revenue grew over 2 filed years.
2 years of Form 990 filings, still active; revenue up 2.3× since.
US 501(c)(3); EIN 922312966 on file with current IRS Form 990 filings.
Board composition & governance documents — verified live in Plinth from the applicant.
OFAC / UN sanctions screening — run live in Plinth at assessment.
Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.
Live · Plinth’s real DD engine
Run the actual assessment on ON THE MARGINS INC, cold from public data.
Generated live from public IRS filings + open web sources by Plinth’s agentic engine. Shown as an illustration of the product, not a formal assessment.
Post-award monitoring · continuous checks
What you see here is static and public. In Plinth it’s operational — the full six-pillar framework on every applicant (with their own documents + live registry and sanctions checks), monitoring dashboards on every award, custom board reports, and eligibility routing for intake.
Preview generated from this grantee’s public IRS filings and independent reporting. Pillars marked “live in Plinth” require the applicant’s submitted documents. Shown as illustration, not a formal assessment.
Warm introductions · Powered by PlinthPro
Find your warmest path to Healthcare Foundation Northern Sonoma through people who sit on both boards. Search for your organization and Plinth traces the introduction across shared trustees and officers.
Every link is a documented governance overlap in public IRS 990 filings — not a personal network — and each hop carries its own confidence tier. Low-confidence or distant paths are held back rather than guessed.