· Private foundation
Sonntag Family Foundation (The)
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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k5 grants · $13k
- $10k–50k7 grants · $146k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $44,250 |
| WOMENS BOARD OF BARROW NEUROLOGICAL FOUNDATION | $25,000 |
| NATIONAL RESOURCES DEFENSE COUNCIL | $20,000 |
| SAN DIEGO FOOD BANK | $20,000 |
| ARCS FOUNDATION PHOENIX CHAPTER | $17,000 |
| JSERRA CATHOLIC SCHOOL | $10,000 |
| ST ANNE CATHOLIC SCHOOL | $10,000 |
| ROSIE'S HOUSE MUSIC ACADEMY FOR CHILDREN | $5,000 |
| ASU FOUNDATION | $2,500 |
| ST MARY'S FOOD BANK | $2,000 |
| Individual grant recipient | $2,000 |
| XAVIER COLLEGE PREPARATORY | $1,000 |
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 (FY24–24, $5k) land where the poverty rate runs at 11%, 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 +53% since the first grant, against +19% for the ones you funded once.
12 repeat relationships — 5 still active in FY2025, 7 since wound down; 7 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, 20% of grant dollars renewed an existing relationship; $126k 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
- BNBARROW NEUROLOGICAL FOUNDATION4× · 2019–2024 · $350k · revenue +63%
ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY4× · 2022–2025 · $53k · revenue +53%- SMST MARY'S FOOD BANK ALLIANCE9× · 2017–2025 · $21k · revenue +58%
Funded once
- CGCHARITABLE GIFT AMERICA INCgraduatedone grant, 2024 · $100k · revenue +28%
University of Arizona Foundationone grant, 2018 · $30k · revenue +19%- AFARCS FOUNDATIONone grant, 2017 · $9k
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 lead, serve and collaborate to mobilize enduring philanthropy for a better arizona.
United Food Bank unites communities to alleviate hunger.
Develop solutions to end hunger through food banking, public policy and innovation.
Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.
Science foundation arizona's mission is to diversify arizona's economy by investing in scientific and engineering research linked to industry needs and investing in education to create a work force with 21st centrury skills.
Waste Not cultivates sustainable food systems that help people and the planet flourish. We do this by eliminating food waste and hunger through innovative community partnerships.
Honorhealth's mission is to improve the health and well-being of those we serve.
To connect, support and inform efforts to improve the health of individuals and communities in arizona.
St. mary's medical center foundation exists to support the mission of dignity health dba, st. mary's medical center. we do this through our encouragement of charitable giving, our stewardship of donor gifts, and our own grant making, which…
See schedule oorganization's missionasu enterprise partners serves as the resource-raising arm of arizona state university. as the parent organization of five nonprofits that are each tasked with identifying new revenue opportunities, asu…
Bringing together diverse voices to advance health and healthcare in arizona.
Advance the university through fostering relationships, inspiring investment and stewardship.
For reference, the grantee most central to the portfolio’s shape is University of Arizona Foundation and the most unlike its peers is Rosies House a Music Academy for Children Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
11 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. 11 of the 28 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 BARROW NEUROLOGICAL FOUNDATION ↗
- Who funds CHARITABLE GIFT AMERICA INC ↗
- Who funds ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY ↗
- Who funds University of Arizona Foundation ↗
- Who funds ST MARY'S FOOD BANK ALLIANCE ↗
- Who funds JACOBS & CUSHMAN SAN DIEGO FOOD BANK ↗
- Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
- Who funds Rosies House A Music Academy for Children Inc ↗
- Who funds ST JOSEPH'S FOUNDATION ↗
- Who funds LAGUNA NIGUEL MILITARY SUPPORT FOUNDATION ↗
- Who funds National Kidney Foundation of Arizona ↗
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 Express Foundation · Arizona Community Foundation · National Philanthropic Trust · Donor Advised Charitable Giving Inc · American Online Giving Foundation 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 Sonntag Family Foundation (The) 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.