· Private foundation
Susan Vondrak-Mark Tark 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 $10k10 grants · $30k
- $10k–50k2 grants · $30k
| Recipient | Amount |
|---|---|
| PEF ISRAEL ENDOWMENT FUNDS | $20,000 |
| FRIENDS OF PENINSULA STATE PARK | $10,000 |
| GARBAGE GALS | $5,000 |
| LOYOLA UNIVERSITY MEDICAL CENTER | $5,000 |
| QUEER ASTERISK | $5,000 |
| ST JUDE CHILDRENS RESEARCH HOSPITAL | $3,000 |
| SHRINERS HOSPITAL FOR CHILDREN | $3,000 |
| ST PETERSBURG FIRST METHODIST CHURC | $3,000 |
| RONALD MCDONALD HOUSE | $3,000 |
| TUNNEL TO TOWERS FOUNDATION | $1,000 |
| FREMONT TOWNSHIP FOOD PANTRY | $1,000 |
| ART INSTITUTE OF CHICAGO | $550 |
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 (FY18–24, $3k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +47% since the first grant, against +12% for the ones you funded once.
21 repeat relationships — 8 still active in FY2025, 13 since wound down; 3 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, 73% of grant dollars renewed an existing relationship; $11k 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
- LULOYOLA UNIVERSITY MEDICAL CENTER9× · 2017–2025 · $45k · revenue +32%
ST JUDE CHILDREN'S RESEARCH HOSPITAL INC9× · 2017–2025 · $26k · revenue +145%- FOFRIENDS OF PENINSULA STATE PARK INC2× · 2019–2025 · $18k · revenue +293%
Funded once
- UOUNIVERSITY OF IOWAone grant, 2023 · $5k
- LCLITTLE CITY FOUNDATIONone grant, 2024 · $1k · revenue 0%
- CSCUB SCOUT PACK 56one grant, 2018 · $1k
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.
Provider of pediatric healthcare, education, research & community service
We, loyola university health system and trinity health, serve together in the spirit of the gospel as a compassionate and transforming healing presence within our communities.loyola university health system is a member of trinity health.
The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…
The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…
The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
As philadelphia's jesuit catholic university, saint joseph's provides a rigorous, student-centered education rooted in the liberal arts. we prepare students for personal excellence, professional success, and engaged citizenship. striving…
Mission: johns hopkins all children's hospital (all children's), a member of johns hopkins medicine, strives to provide the highest quality care to improve the health of our entire community through innovation, collaboration, service…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
We, loyola university health system and trinity health, serve together in the spirit of the gospel as a compassionate and transforming healing presence within our communities.gottlieb community health services corporation is a member of…
For reference, the grantee most central to the portfolio’s shape is Feed My Starving Children Inc and the most unlike its peers is True North Treks Nfp. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 61 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 5% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% 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.
19 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. 19 of the 33 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 PEF ISRAEL ENDOWMENT FUNDS INC ↗
- Who funds LOYOLA UNIVERSITY MEDICAL CENTER ↗
- Who funds THE SHRINERS' HOSPITAL FOR CHILDREN ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds FRIENDS OF PENINSULA STATE PARK INC ↗
- Who funds RUTH ECKERD HALL INC ↗
- Who funds Kenneth C Griffin Museum of Science and Industry ↗
- Who funds QUEER ASTERISK ↗
- Who funds Florida Sheriffs Youth Ranches Inc ↗
- Who funds THE LAMBS FARM INC ↗
- Who funds JAYHAWK AREA COUNCIL OF BOY SCOUTS OF AMERICA INC COUNCIL 197 ↗
- Who funds SHEDD AQUARIUM SOCIETY ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds WOUNDED WARRIOR PROJECT INC ↗
- Who funds LITTLE CITY FOUNDATION ↗
- Who funds FEED MY STARVING CHILDREN INC ↗
- Who funds American Heart Association Inc ↗
- Who funds True North Treks NFP ↗
- Who funds THE ART INSTITUTE OF CHICAGO ↗
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: The Bank of America Charitable Foundation Inc · 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 Susan Vondrak-Mark Tark 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, a single department, or state — and drag the year to watch it move.
- The Shriners' Hospital for Children — 6% of income from government
- Wounded Warrior Project Inc — 0% of income from government
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.