· Private foundation
Martin & Hildegard Gluck Foundation
Its FY2024 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k2 grants · $1k
- $10k–50k2 grants · $20k
- $50k–250k1 grant · $62k
| Recipient | Amount |
|---|---|
| CHILDREN'S MUSEUM TUCSON | $62,000 |
| HANDI-DOGS INC | $10,000 |
| JUST COMMUNITIES AZ | $10,000 |
| JEWISH COMMUNITY FOUNDATION OF S AZ | $500 |
| TUCSON GIRLS CHORUS | $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, $116k) land where the poverty rate runs at 14%, against an area that typically sits at 9%. 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.
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 +38% since the first grant, against +25% for the ones you funded once.
8 repeat relationships — 0 still active in FY2024, 8 since wound down; 5 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, 0% of grant dollars renewed an existing relationship; $83k 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
- ADArizona Diaper Bank2× · 2019–2020 · $34k · revenue +0%
- HCHEALTH CURRENT2× · 2020–2022 · $26k · revenue +66%
- NDNATIONAL DIAPER BANK NETWORK INC2× · 2018–2019 · $20k · revenue +169%
Funded once
- BBBIG BROTHERS BIG SISTERSone grant, 2018 · $40k
- YOYMCA OF SOUTHERN ARIZONAone grant, 2019 · $30k · revenue -16%
- ACAngel Charity for Children Incgraduatedone grant, 2017 · $29k · revenue +90%
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.
Az wins is a coalition of organizations dedicated to achieving public policies that benefit working arizona families and advancing an inclusive, engaged, just and equitable state for all arizonans. in 2024 az wins substantially reduced its…
To lead, serve and collaborate to mobilize enduring philanthropy for a better arizona.
Pro-Choice Arizona centers abolition and reproductive justice values to prioritize community needs. We advance reproductive equity, pregnancy and family justice, and abortion access for all folks living in Arizona through direct service…
To connect, support and inform efforts to improve the health of individuals and communities in arizona.
ATC's mission is to create world-class theatre about what it means to be alive today - inspiring curiosity and creativity, sparking empathy and joy - bringing all Arizonans together.
To connect and strengthen arizona's technology industry and community, promote state and federal policies that enhance arizona's technology industry, deliver quality content and events to educate those working in arizona's expanding…
CORAZÓN-AZ's mission is to cultivate and foster a welcoming and safe community of Arizonans from vast faith traditions and beliefs, schools, and allied organizations; united in expanding our democracy, economic dignity, immigrant justice,…
One arizonas mission is to increase civic participation among arizonans
Bringing together diverse voices to advance health and healthcare in arizona.
Working to transform the region's economy through entrepreneurship and innovation.
For reference, the grantee most central to the portfolio’s shape is Arizona Association of Community Health Centers Inc and the most unlike its peers is Andra Heart Foundation. 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 29 years old; the field is 15. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 11% of your grantees by number, and just 4% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% 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.
30 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. 30 of the 43 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 TUCSON CHILDREN'S MUSEUM INC DBA CHILDREN'S MUSEUM TUCSON ↗
- Who funds Arizona Diaper Bank ↗
- Who funds YMCA OF SOUTHERN ARIZONA ↗
- Who funds TUCSON PARKS FOUNDATION ↗
- Who funds United Way of Tucson and Southern Arizona Inc ↗
- Who funds Angel Charity for Children Inc ↗
- Who funds HEALTH CURRENT ↗
- Who funds Sunnyside Unified School District Foundation ↗
- Who funds COMMUNITY GARDENS OF TUCSON INC ↗
- Who funds Arizona Youth Partnership ↗
- Who funds NATIONAL DIAPER BANK NETWORK INC ↗
- Who funds EDUCATIONAL ENRICHMENT FOUNDATION ↗
- Who funds ANDRA HEART FOUNDATION ↗
- Who funds ARIZONA ASSOCIATION OF COMMUNITY HEALTH CENTERS INC ↗
- Who funds JUST COMMUNITIES ARIZONA ↗
- Who funds HANDI-DOGS INC ↗
- Who funds PIMA COMMUNITY COLLEGE FOUNDATION INC ↗
- Who funds JEWISH FAMILY AND CHILDREN'S SERVICE INC ↗
- Who funds HEALING ARIZONA VETERANS ↗
- Who funds ARIZONA TOWN HALL ↗
- Who funds THE TRISKELES FOUNDATION ↗
- Who funds Equality Arizona ↗
- Who funds Integrative Touch ↗
- Who funds EASTERSEALS BLAKE FOUNDATION ↗
- Who funds University of Arizona Foundation ↗
- Who funds AVIVA CHILDREN'S SERVICES ↗
- Who funds TUCSON HISPANIC CHAMBER OF COMMERCE FOUNDATION ↗
- Who funds ANGEL HEART PAJAMA PROJECT ↗
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 · The Hs Lopez Family Foundation · Absolon Foundation · Connie Hillman Family Foundation · United Way of Tucson and Southern Arizona Inc · Arizona Community Foundation · Jewish Community Foundation of Southern Arizona · Graesser Foundation · Vance Foundation · Fred & Christine Armstrong Foundation · Marshall Foundation · The Foundation for Community and Health Advancement
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 Martin & Hildegard Gluck 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.
Warm introductions · Powered by PlinthPlus
How do I get to Martin & Hildegard Gluck Foundation?
Find your warmest path to Martin & Hildegard Gluck Foundation 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.