· Public charity
American Hearing Research Foundation
The American Hearing Research Foundation serves two vital roles: to fund significant research in hearing and balance disorders, and to help educate the public about hearing loss and balance disorders related to the inner ear.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- $10k–50k3 grants · $141k
- $50k–250k6 grants · $300k
| Recipient | Amount |
|---|---|
| University of Colorado Denver | $50,000 |
| University of Miami | $50,000 |
| Northwestern University | $50,000 |
| Medical University of SC | $50,000 |
| University of Rochester | $50,000 |
| Vanderbilt Medical Center | $50,000 |
| Baylor College of Medicine | $49,936 |
| Boston University | $49,614 |
| University of Miami MSM | $41,000 |
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 (FY20–20, $40k) land where the poverty rate runs at 12%, against an area that typically sits at 12%. 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 +45% since the first grant, against +45% for the ones you funded once.
11 repeat relationships — 4 still active in FY2024, 7 since wound down; 4 grantees were first funded in FY2024 (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 FY2024, 55% of grant dollars renewed an existing relationship; $200k 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
Northwestern University7× · 2017–2024 · $336k · revenue +41%- UOUniversity of Miami4× · 2017–2024 · $200k · revenue +96%
- BCBaylor College of Medicine3× · 2017–2024 · $130k · revenue +67%
Funded once
- ROREGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGOone grant, 2023 · $50k
TRUSTEES OF BOSTON UNIVERSITYone grant, 2023 · $50k · revenue +6%- OSOREGON STATE UNIVERSITYone grant, 2022 · $50k
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.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
As a leading research university with a distinctive commitment to undergraduate education, Rice University aspires to path breaking research, unsurpassed teaching, and contributions to the betterment of our world. It seeks to fulfill this…
The mission of Rush is to improve the health of the individuals and diverse communities we serve through the integration of outstanding patient care, education, research and community partnerships.
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…
Wake Forest University, a 501(c)(3) institution of higher education, is dedicated to the pursuit of excellence in the liberal arts and in graduate and professional education. The organization is comprised of seven constituent parts: Wake…
The washington university is a co-educational, nondenominational university with a long and distinguished history of teaching, research and (cont'd on schedule o)
As a Catholic, Jesuit university our mission is to search for truth, discover shareknowledge, foster personal professional excellence, promote a life of faith and developleadership expressed in service to others. See Schedule O.
Drexel university fulfills its founder's vision of preparing each new generation of students for productive professional and civic lives while also focusing its collective expertise on solving society's greatest problems. drexel is an…
University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…
Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…
Stanford university is one of a select group of american universities that have achieved eminence in both undergraduate and graduate education and research - cont'd sch o.
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
For reference, the grantee most central to the portfolio’s shape is Northwestern University and the most unlike its peers is Father Flanagan's Boys' Home. 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 84 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 2% of your money.
The orgs you fund almost never close — 3% 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.
16 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. 16 of the 37 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 Northwestern University ↗
- Who funds University of Miami ↗
- Who funds Baylor College of Medicine ↗
- Who funds Creighton University ↗
- Who funds TRUSTEES OF BOSTON UNIVERSITY ↗
- Who funds UNIVERSITY OF ROCHESTER ↗
- Who funds Vanderbilt University Medical Center ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds Miami Children's Health System Foundation Inc ↗
- Who funds MCGAW MEDICAL CENTER OF NORTHWESTERN UNIVERSITY ↗
- Who funds CASE WESTERN RESERVE UNIVERSITY ↗
- Who funds Father Flanagan's Boys' Home ↗
- Who funds Yale University ↗
- Who funds MEDICAL UNIVERSITY OF SOUTH CAROLINA FOUNDATION ↗
- Who funds DUKE UNIVERSITY ↗
- Who funds The Research Foundation for The State University of New York ↗
Government reliance of your grantees
Every dot is one organization American Hearing Research 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.
- Trustees of Boston University — 12% of income from government
- Yale University — 12% of income from government
- President and Fellows of Harvard College — 7% of income from government
- University of Miami — 5% 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.
Warm introductions · Powered by PlinthPlus
How do I get to American Hearing Research Foundation?
Find your warmest path to American Hearing Research 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.