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· Public charity
To receive and administer funds exclusively to 501(c)(3) organizations for educational and charitable purposes.
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 60% of ANN ARBOR ROTARY FOUNDATION’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 · FY2025
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY20–22, $27k) land where the poverty rate runs at 14% — the area typically sits at 18%. 0% 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.
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.
Family network desires to serve the greater wyoming, mi area by providing food, resources and services to people in need.
To help families find and pay for quality child care, and help programs provide quality care.
Promote statewide access to quality and equitable Out-of-School Time programs to ensure that all children and youth succeed.
A network of parents working to build and engage parents and others to ensure every child has a champion.
The mission of mna is to serve nonprofits to advance their missions
The purpose of the organization is to provide child welfare and supporting services to children, families, and individuals working and living in michigan.
Provide the best legal and housing advocacy assisstance to the citizens of michigan.
To prevent child abuse and neglect and improve the quality of life for children and families.
Social welfare and issue advocacy
Our mission is to unify and strengthen michigan's response to child victims of abuse through sustainable growth, collaboration, and empowerment of children's advocacy centers (cacs). our vision is that all of michigan's children will have…
To improve the health of children and adults, particularly vulnerable populations, through education and connections to health care and support services.
For reference, the grantee most central to the portfolio’s shape is Washtenaw Area Council for Children and the most unlike its peers is Michigan Foster Care Closet. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
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: Kiwanis Club of Aa Foundation Inc · Ann Arbor Area Community Foundation · Speckhard-Knight Charitable Foundation · James a and Faith Knight Foundation · United Way of Washtenaw County · Harry a and Margaret D Towsley · Jenkins Foundation · Thrift Shop Association of Ann Arbor · The Buhr Foundation · Edward F Redies Foundation Inc · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc
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 ANN ARBOR ROTARY 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. 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: MICHIGAN FOSTER CARE CLOSET.
Agentic due diligence · confidence × risk
Limited financial data in public filings.
5 years of Form 990 filings, still active; revenue up 2.1× since.
US 501(c)(3); EIN 823351245 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 MICHIGAN FOSTER CARE CLOSET, 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 Ann Arbor Rotary Foundation 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.