· Private foundation
Sandstone Foundation Inc
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 $10k7 grants · $16k
- $10k–50k3 grants · $85k
| Recipient | Amount |
|---|---|
| GPS EDUCATION PARTNERS | $35,000 |
| MUSEUM OF WISCONSIN ART | $30,200 |
| MILWAUKEE INSTITUTE OF ART AND DESIGN INC | $20,000 |
| MILWAUKEE ART MUSEUM | $5,000 |
| URBAN ECOLOGY CENTER INC | $2,500 |
| ECONOMICS WISCONSIN | $2,000 |
| MILWAUKEE SCHOOL OF ENGINEERING | $2,000 |
| SOJOURNER TRUTH HOUSE INC | $2,000 |
| ST GEORGE VILLAGE BOTANICAL GARDEN OF ST CROIX INC | $1,000 |
| META HOUSE INC | $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 (FY18–25, $4k) land where the poverty rate runs at 16%, against an area that typically sits at 12%. 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
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 +24% since the first grant, against +17% for those funded once.
13 repeat relationships: 8 still active in FY2025, 5 since wound down; 2 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, 68% of grant dollars renewed an existing relationship; $32k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
GPS EDUCATION PARTNERS INC4× · 2018–2025 · $41k · revenue +69%
MILWAUKEE INSTITUTE OF ART & DESIGN INC3× · 2023–2025 · $40k · revenue +2%- MAMILWAUKEE ART MUSEUM INC5× · 2018–2025 · $11k · revenue +8%
Funded once
- MOMUSEUM OF WI ARTone grant, 2024 · $20k
FEEDING AMERICA EASTERN WISCONSIN INCone grant, 2023 · $5k · revenue +17%
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 mission of the milwaukee bar association is to be an inclusive, equitable and diverse organization that serves the interests of the lawyers, judges and the people of milwaukee county by working to promote the professional interests of…
Milwaukee women inc is an organization of executives determined to change the quality and composition of corporate boards to maximize the performance of public and private companies with a focus on women and women of color.
We conduct impartial public policy research and analysis to drive informed debate and effective decision-making in the state of wisconsin.
To collect, display and interpret objects in craft art and design.
To reach a new generation of radio listeners on air, online and in the community with a compelling selection of music and public affairs programming. the corporation celebrates milwaukee music, arts, heritage, and culture by supporting and…
Midwest dairy works with others to give consumers an excellent dairy experience increasing sales, fostering innovation, and inspiring consumer confidence of dairy products and practices.
The wisconsin maritime museum connects all people with wisconsin's waterways, by engaging and educating the public about wisconsin's maritime history, wisconsin's world war ii submarines, uss cobia, and the great lakes. the wisconsin…
The mission of the organization is to provide a high quality education for all students with choices after graduation that will provide financial stability, inspire personal freedom to builda legacy.
Mcad provides a transformative education within a community of support for creative students of all backgrounds to work, collaborate, and lead with confidence in a dynamic, interconnected world.
The milwaukee public museum inspires curiosity, excites minds and increases desire to preserve and protect our world's natural and cultural diversity through exhibitions, educational programs, collections and research.
Driving innovation for the energy, power, and controls sector by synchronizing market insights, technology innovation and talent & start-up development into a new innovation engine for economic development and growth.
University school of milwaukee cultivates excellence in learning, leadership, and citizenship for prekindergarten through 12th grade students. students are engaged, known, and valued within our passionate independent school community…
How this is measured
12 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. 12 of the 17 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 GPS EDUCATION PARTNERS INC ↗
- Who funds MILWAUKEE INSTITUTE OF ART & DESIGN INC ↗
- Who funds MUSEUM OF WISCONSIN ART INC ↗
- Who funds MILWAUKEE ART MUSEUM INC ↗
- Who funds URBAN ECOLOGY CENTER INC ↗
- Who funds FEEDING AMERICA EASTERN WISCONSIN INC ↗
- Who funds MILWAUKEE SCHOOL OF ENGINEERING ↗
- Who funds THE ST GEORGE VILLAGE BOTANICAL GARDEN OF ST CROIX INC ↗
- Who funds META HOUSE INC ↗
- Who funds Sojourner Truth House Inc ↗
- Who funds SOJOURNER FAMILY PEACE CENTER INC ↗
- Who funds THE ALS ASSOCIATION INC WISCONSIN CHAPTER ↗
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: Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Sandstone Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Sandstone Foundation Inc. Bigger dots raise more.
How this is measured
Play a game based on Sandstone’s filings →