· Private foundation
The Shamrock Trust
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 it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k42 grants · $42k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| COVENANT HOUSE | $10,000 |
| Individual grant recipient | $5,000 |
| FOREST HIGHLANDS FOUNDATION | $5,000 |
| TUNNEL TO TOWERS | $5,000 |
| THE GATHERING PLACE | $3,090 |
| CATHOLIC FOUNDATION | $3,000 |
| Individual grant recipient | $1,700 |
| ST FRANCIS DE ASSISSI | $1,500 |
| Individual grant recipient | $1,500 |
| TUCSON MUSEUM OF ART | $1,500 |
| DENVER ART MUSEUM | $1,100 |
| AMERICANS FOR PROSPERITY | $1,000 |
| CHILD HELP | $1,000 |
| JUDICIAL WATCH | $1,000 |
| GOLDWATER INSTITUTE | $1,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY19–25, $5k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +44% since the first grant, against +1% for those funded once.
48 repeat relationships: 23 still active in FY2025, 25 since wound down; 19 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, 59% of grant dollars renewed an existing relationship; $21k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- AFAMERICANS FOR PROSPERITY4× · 2018–2025 · $13k · revenue +132%
- TMTUCSON MUSEUM OF ART AND HISTORIC BLOCK INC7× · 2019–2025 · $11k · revenue +50%
- BABanner Alzheimer's Foundation2× · 2019–2022 · $6k · revenue +44%
Funded once
- IGIndividual grant recipientone grant, 2024 · $50k
- TNTRINITY NEWMAN CENTERone grant, 2023 · $50k
- IGIndividual grant recipientone grant, 2022 · $10k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
The institute's mission is to conduct research on key issues facing society to help both the church and society deal thoughtfully with the major issues they face globally. the institute also sponsors and conducts research and scholarship…
The santa fe institute is a transdisciplinary research community that expands the boundaries of scientific understanding. its aim is to discover, comprehend, and communicate the common fundamental principles in complex physical,…
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
The american enterprise institute is a community of scholars and supporters committed to expanding liberty, increasing individual opportunity, and strengthening free enterprise. aei pursues these ideals through independent thinking and the…
Ceu is committed to promoting the values of open society and self-reflective critical thinking. it aims at excellence in the mastery of established knowledge, courage to pursue the creation of new knowledge in the humanities, the social…
Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…
The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…
Pew Research Center is a nonpartisan "fact tank" that informs the public about the issues, attitudes and trends shaping America and the world. Pew Research Center generates a foundation of facts that enriches the public dialogue and…
The federation for american immigration reform's (fair) mission is to educate the public about the economic, sociological, environmental, demographic and other effects of mass immigration to the united states.
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
How this is measured
43 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 43 of the 130 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds Forest Highlands Foundation ↗
- Who funds AMERICANS FOR PROSPERITY ↗
- Who funds TUCSON MUSEUM OF ART AND HISTORIC BLOCK INC ↗
- Who funds COVENANT HOUSE ↗
- Who funds Banner Alzheimer's Foundation ↗
- Who funds DENVER ART MUSEUM ↗
- Who funds JUDICIAL WATCH INC ↗
- Who funds Leadership Institute ↗
- Who funds CHILDHELP INC ↗
- Who funds DIOCESAN COUNCIL FOR THE SOCIETY OF ST VINCENT DE PAUL DIOCESE PHOENIX ↗
- Who funds LITERACY CONNECTS ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds FRIENDS OF SABINO CANYON INC ↗
- Who funds FREEDOM CENTER INC ↗
- Who funds PATRONATO SAN XAVIER ↗
- Who funds BARRY GOLDWATER INSTITUTE FOR PUBLIC POLICY RESEARCH ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds GOOTTER-JENSEN FOUNDATION ↗
- Who funds SOUTHEASTERN LEGAL FOUNDATION INC ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: The Shamrock Foundation · Community Foundation for Southern Arizona · Arizona Community Foundation · William and Mary Ross Foundation · Connie Hillman Family Foundation · Jewish Community Foundation of Southern Arizona · The Hs Lopez Family Foundation · United Way of Tucson and Southern Arizona Inc · National Philanthropic Trust · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · Donor Advised Charitable Giving Inc
How this is measured
How much its grantees rely on government
Each dot is one organization The Shamrock Trust funds: left to right is the share of its income from government, bottom to top the share from The Shamrock Trust. Bigger dots raise more.
How this is measured
Play a game based on Shamrock’s filings →