· Private foundation
Ruth McC Tankersley Charitable Fnd
Its FY2025 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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k4 grants · $20k
- $10k–50k15 grants · $340k
- $50k–250k21 grants · $2.0M
- $250k+3 grants · $2.4M
| Recipient | Amount |
|---|---|
| Michaels Foundation | $950,000 |
| World Resources Institute | $700,000 |
| Woodwell Climate Research Cntr | $700,000 |
| Michaels Foundation | $200,000 |
| The Gregory School | $150,000 |
| St Matthews Episcopal Church Chand | $150,000 |
| Community Fnd of Southern AZ | $150,000 |
| Nature Forward | $115,000 |
| Elusen Inc | $104,000 |
| Michaels Foundation | $100,000 |
| Community Fnd for Southern AZ | $96,000 |
| Michaels Foundation | $86,000 |
| St Michaels Parish Day School | $85,000 |
| Flandrau Science Center Planetarium | $85,000 |
| UA Foundation fbo Cooper Center | $85,000 |
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 (FY18–25, $4.6M) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 46% of those dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +43% since the first grant, against +27% for the ones you funded once.
85 repeat relationships — 30 still active in FY2025, 55 since wound down; 6 grantees were first funded in FY2025 (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 FY2025, 96% of grant dollars renewed an existing relationship; $170k 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
Woodwell Climate Research Center Inc8× · 2018–2025 · $5.4M · revenue +96%
WORLD RESOURCES INSTITUTE8× · 2018–2025 · $5.1M · revenue +91%- MFMICHAEL'S FOUNDATION INC7× · 2019–2025 · $4.4M · revenue ×13 · 100% of their budget
Funded once
- IGIndividual grant recipientone grant, 2017 · $500k
- IGIndividual grant recipientone grant, 2017 · $467k
- UFUA FOUNDATION CALS-ACBSone grant, 2019 · $337k
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.
Mission is to seek protection of land and water resources through restoration and conservation; and conducting education and outreach on the ecological and economic importance of natural lands. we protect land from development and protect…
We harness the power of plants for humankind and share the joy and beauty of tropical gardening with everyone. fairchild tropical botanic garden is a museum of tropical plants within a world famous, 83-acre designed landscape. it was…
Project drawdown's mission is to drive meaningful climate action by advancing science-based solutions and strategies. project drawdown's work is focused on three pillars: science - advancing science-based climate solutions and strategies;…
Colorado open lands' mission is to preserve the significant open lands and natural heritage of colorado through private and public partnerships, innovative land conservation, and strategic leadership.
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Organization mission: florida's children first is a non-profit, nonpartisan, independent advocacy organization committed to protecting and advancing the rights of children and youth impacted by the child welfare, juvenile justice, and…
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Friends of the earth strives for a more healthy and just world by defendng the environment and human health while advancing social and economic justice by conducting research and education, transforming the economy so it protects the…
The fund was created because the florida legislature found there was a need to increase the availability of seed capital and early stage venture equity capital for emerging companies in the state, including, without limitation, enterprises…
To foster philanthropy across charlotte county to enhance our community for generations.
To prevent cruelty to animals, we promote enacting and enforcing good public policies. enacting good laws depends upon electing good lawmakers, and we remind voters which candidates care about and support animal issues.
For reference, the grantee most central to the portfolio’s shape is Make-a-Wish Foundation of Arizona Inc and the most unlike its peers is A Hero for Kids Incorporated. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 27 years old; the field is 16. 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 — 1% lost their exemption, against 13% 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.
60 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. 60 of the 214 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
Showing your 200 largest grantees by grant value.
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 Woodwell Climate Research Center Inc ↗
- Who funds WORLD RESOURCES INSTITUTE ↗
- Who funds MICHAEL'S FOUNDATION INC ↗
- Who funds THE GREGORY SCHOOL ↗
- Who funds HEAVENLY HOOFS INC ↗
- Who funds ROLLINS COLLEGE ↗
- Who funds ELUSEN INC ↗
- Who funds Defenders of Wildlife ↗
- Who funds Nature Forward ↗
- Who funds ARIZONA BURN FOUNDATION INC ↗
- Who funds Friends of Hutto Dog Park INC ↗
- Who funds TUCSON CHILDREN'S MUSEUM INC DBA CHILDREN'S MUSEUM TUCSON ↗
- Who funds COLLEGE BOUND INC ↗
- Who funds Therapeutic Riding of Tucson Inc ↗
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: Community Foundation for Southern Arizona · Duke Energy Foundation · Arizona Community Foundation · Connie Hillman Family Foundation · Sundt Foundation · The Hs Lopez Family Foundation · Edward Jones Foundation · Enterprise Holdings Foundation · The Chicago Community Trust · The Pfizer Foundation Inc · Charities Aid Foundation America · American Online Giving Foundation 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.
Government reliance of your grantees
Every dot is one organization Ruth McC Tankersley Charitable Fnd 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, a single department, or state — and drag the year to watch it move.
- Nature Forward — 32% of income from government
- Woodwell Climate Research Center Inc — 11% of income from government
- Hapco Music Foundation Inc — 5% of income from government
- Aspire Health Partners Inc — 2% of income from government
- Pace Center for Girlsinc — 2% of income from government
- Rollins College — 0% 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 Ruth McC Tankersley Charitable Fnd?
Find your warmest path to Ruth McC Tankersley Charitable Fnd 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.