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· Public charity
We work collaboratively with our partner agencies, other community organizations, public agencies, corporations, philanthropic, faith-based organizations and individuals.
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 · FY2018
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY18–18, $21k) land where the poverty rate runs at 14% — the area typically sits at 12%. 100% of those dollars reach neighborhoods with above-average need. 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 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.
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.
To break the cycle of homelessness in the Inland Empire, by providing housing, case management, and ongoing support to families who have no place to live. This mission aims to reduce countywide homelessness while addressing each family's…
(See Schedule O)Provide families with compassionate & comprehensive care to promote wellness & build strong communities.
Habitat for Humanity is an affordable housing ministry that builds and repairs homes for people with low income.
Support safety net health centers & clinics throughout the Inland Empire.
The mission of the Samaritan Center-Simi Valley is to offer people experiencing housing and food insecurity supportive services essential to human dignity.
We provide interim housing and social services with meaningful activities for people moving from institutions, or otherwise unsheltered, into housing and stability, particularly as alternatives to incarceration.
The organization provides health care and other related services to medically underserved populations in Los Angeles County.
assist developmentally disabled individuals.
To provide service and advocacy, which creates choices and opportunities, for adults with disabilities to reach their maximum potential.
To provide health care services to socially and economically depressed sectors of the southern San Joaquin Valley in California.
To provide services to individuals with disabilities. Also, encouraging people with disabilities to be in control of their lives and to live more independently through a diverse range of choices and opportunities.
For reference, the grantee most central to the portfolio’s shape is Community Health Systems Inc and the most unlike its peers is PUFF2HO. 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 30 years old; the field is 12. You back the established end — and your money leans older still.
The field is 27% startups (under 5 years old) — 4% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 5% lost their exemption, against 16% 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: Inland Empire Community Foundation · Kaiser Foundation Hospitals · California Physicians' Service Fdn · Loma Linda University Shared Services · Annette M Williams Charitable Foundation · Weingart Foundation · Sempra Foundation · The Annenberg Foundation · Delta Dental Community Care Foundation · Feed the Children Inc · Direct Relief · The California Wellness 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.
Every dot is one organisation Arrowhead United Way 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: Assistance League of SB County.
Agentic due diligence · confidence × risk
~16 months of operating runway; revenue contracted over 7 filed years.
7 years of Form 990 filings, still active.
US 501(c)(3); EIN 956065105 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 Assistance League of SB County, 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 Arrowhead United Way 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.