· Private foundation
Castaing Family Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
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 $10k6 grants · $13k
- $10k–50k2 grants · $40k
| Recipient | Amount |
|---|---|
| Michigan Science Center | $20,000 |
| Mayo Clinic | $20,000 |
| Play Works | $5,000 |
| Detroit Symphony Orchestra | $5,000 |
| American Red Cross | $1,000 |
| Friends of Public Radio AZ | $1,000 |
| Detroit Inst of Arts | $500 |
| National Park Foundations | $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 (FY17–24, $27k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. 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 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.
11 repeat relationships — 7 still active in FY2025, 4 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
- MSMICHIGAN SCIENCE CENTER7× · 2017–2025 · $110k · revenue +98%
- CSCancer Support Community Arizona4× · 2018–2021 · $11k · revenue +58%
- TCTHE CENTER FOR GRIEVING CHILDREN2× · 2017–2019 · $5k · revenue +26%
Funded once
- HOHospice of the Valleyone grant, 2024 · $25k · revenue 0%
- UOUniversity of Michigangraduatedone grant, 2018 · $12k · revenue +195%
- FIFIRST IN MICHIGANgraduatedone grant, 2017 · $10k · revenue +72%
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.
To hold title and perform related functions in connection with a research park and innovation center in support of michigan state university research foundation.
The Detroit Historical Society tells Detroit's stories and why they matter through its exhibits, programs, outreach, and the preservation and dissemination of its artifacts and collections.
The corporation is organized and shall be operated exclusively for charitable, educational and scientific purposes by conducting or supporting activites exclusively for the benefit of, to perform the functions of, or to carry out the…
The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…
Bridging the gap between early-stage innovation and commercial application. partnering to de-risk, develop and scale-up discoveries into commercially-viable technology packages.
Informing and educating the public and decision makers about environmental issues.
Asco association promotes the common business interests of its members by: (1) advocating for policies that improve the quality of cancer care; (2) maintaining the highest standards of oncology medical care through programs supporting…
The Association is an independent worldwide organization that nurtures lifelong relationships with and among current and future Michigan alumni. As a committed partner of the University the Association offers programs of relevance and…
Mifma supports the viability of all community-driven marketplaces so that they can connect all consumers to local farms and businesses.
Our mission is to accelerate scientific progress, understand the root causes of disease, and narrow the gap between discoveries and impact on patients.
To be the leading voice of medicine to make minnesota the healthiest state and the best place to practice.
Engage actively and continuously in medical research, education and training in the practice of medicine in conjunction with the department of family medicine of the indiana university school of medicine and indiana university…
For reference, the grantee most central to the portfolio’s shape is Playworks Education Energized and the most unlike its peers is Summer in the City. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
17 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. 17 of the 25 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 MICHIGAN SCIENCE CENTER ↗
- Who funds MAYO CLINIC ↗
- Who funds DETROIT SYMPHONY ORCHESTRA INC ↗
- Who funds Hospice of the Valley ↗
- Who funds University of Michigan ↗
- Who funds Cancer Support Community Arizona ↗
- Who funds FIRST IN MICHIGAN ↗
- Who funds AUTOMOTIVE HALL OF FAME INC ↗
- Who funds PLAYWORKS EDUCATION ENERGIZED ↗
- Who funds THE CENTER FOR GRIEVING CHILDREN ↗
- Who funds TRAVIS MILLS FOUNDATION ↗
- Who funds Citizens United for Research in Epilepsy ↗
- Who funds FRIENDS OF PUBLIC RADIO ARIZONA ↗
- Who funds FRIENDS OF KENYAN ORPHANS ↗
- Who funds NATIONAL PARK FOUNDATION ↗
- Who funds SUMMER IN THE CITY ↗
- Who funds THE DETROIT INSTITUTE OF ARTS ↗
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: American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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.
Government reliance of your grantees
Every dot is one organization Castaing Family 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: 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.