· Private foundation
William & Ann Trebilcock 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.
| Recipient | Amount |
|---|---|
| TUNNEL TO TOWERS FOUNDATION | $7,000 |
| Individual grant recipient | $2,500 |
| ST JUDE CHILDRENS HOSPITAL | $2,500 |
| SALVATION ARMY | $2,500 |
| FOOD BANK OF IOWA | $2,500 |
| DOCTORS WITHOUT BORDERS | $2,500 |
| AMBERS ANTIBODIES | $1,250 |
| COVENANT HOUSE | $1,250 |
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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 14% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +89% since the first grant, against -1% for the ones you funded once.
14 repeat relationships — 7 still active in FY2025, 7 since wound down; 1 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; $7k 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
- AAAMBERS ANTIBODIES INC9× · 2017–2025 · $15k · revenue +386%
ST JUDE CHILDREN'S RESEARCH HOSPITAL INC6× · 2018–2025 · $7k · revenue +125%
MEDECINS SANS FRONTIERES USA INC6× · 2018–2025 · $7k · revenue +89%
Funded once
- YHYOUTH HOMESone grant, 2017 · $14k
- HEHAROLD EINSTEIN FOUNDATIONone grant, 2023 · $2k
- AAALZHEIMERS ASSOCIATIONone grant, 2017 · $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.
The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…
A nonprofit scientific research organization that develops vaccines and antibodies for hiv, tuberculosis, and emerging infectious diseases.
Our mission is to advance the practice of medicine through advocacy, education, and engagement with physicians throughout iowa to ensure the highest quality of care for the patients they serve.
Inspired by the gift of donation from our communities, allosource responsibly provides innovative cellular and tissue allografts to advance patient healing.
To improve the lives of people through innovative scientific and engineering research.
Meriter is dedicated to improving the health of the people and communities we serve.
Mercy Health will provide assistance, support and direction to all of the health care institutions and activities operated and maintained by its Subsidiaries. The mission of Mercy Health in performing these activities shall be to provide a…
We conduct fundamental infectious disease research to generate critical new knowledge about pathogens and their interactions with see schedule o for continuationhumans to enable the discovery and development of novel interventions,…
To support salem health, salem health west valley and related organizations.
To eliminate hunger in south dakota.
We, mercy health services-iowa and trinity health, serve together in the spirit of the gospel as a compassionate and transforming healing presence within our communities.mercy health services-iowa is a member of trinity health.
Mission: lifebanc saves and heals lives.vision: pursuing a future where organ, eye and tissue donation is embraced as an honor and a personal responsibility.values: service, teamwork, integrity, commitment, innovation, quality.
For reference, the grantee most central to the portfolio’s shape is Make-a-Wish Foundation of Iowa Inc and the most unlike its peers is Ambers Antibodies Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
8 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. 8 of the 23 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 AMBERS ANTIBODIES INC ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds FOOD BANK OF IOWA ↗
- Who funds HOPE MINISTRIES ↗
- Who funds MAKE-A-WISH FOUNDATION OF IOWA INC ↗
- Who funds LAND O LAKES AREA ARTISANS INC ↗
Government reliance of your grantees
Every dot is one organization William & Ann Trebilcock 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.
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How do I get to William & Ann Trebilcock Foundation?
Find your warmest path to William & Ann Trebilcock 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.