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Plinth

· Public charity

North American Skull Base Society

Exchange and disseminate information about the anatomy, physiology and clinical management of diseases involving the skull base.

$80k
Granted FY2024still arriving
5
Grants FY2024still arriving
4
States reached
$20k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20182024.

Education$314kHealth$70kRecreation & Sports$20k
02FY2024 · 5 grants

Where the money goes

Your grants by size, and where they go.

$15,000
Median grant
4
States reached
$3.1M
Total assets
Largest grants
RecipientAmount
UC LOS ANGELES$20,000
NORTHWESTERN UNIVERSITY$20,000
DUKE UNIVERSITY$15,000
EMORY UNIVERSITY$15,000
UC IRVINE$10,000
02The need
03

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.

show:

Your human-services grants (FY21–21, $10k) land where the poverty rate runs at 17%, 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.

area typical 12%MOUNT SINAI HEALTH SYSTEM: $10k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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

MN
IL
WI
NY
MA
OR
OH
PA
CT
CA
NC
GA
TX

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.

03Your edge
repeat funding

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.

36%of every dollar goes to organizations you’ve funded before.
$147k · 5 repeat orgs$257k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +45% since the first grant, against +18% for the ones you funded once.

5 repeat relationships — 1 still active in FY2024, 4 since wound down; 4 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
12

Total granted

$147k
$192k

Median revenue growth · since first grant

+45%
+18%

Still filing today

80%
33%

New vs renewed · share of each year

In FY2024, 19% of grant dollars renewed an existing relationship; $65k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24
EducationHuman ServicesHealthRecreation & SportsOther

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

  • UO
    University of Miami
    2× · 2018–2021 · $35k · revenue +87%
  • DUKE UNIVERSITY
    2× · 2023–2024 · $35k · revenue +27%
  • TJ
    THOMAS JEFFERSON UNIVERSITY
    3× · 2020–2023 · $33k · revenue +45%

Funded once

  • MS
    MOUNT SINAI DEPT OF OTOLARYNG
    one grant, 2019 · $20k
  • US
    UC SAN FRANCISCO
    one grant, 2023 · $20k
  • ME
    MASSACHUSETTS EYE & EAR INFIRMARY
    one grant, 2019 · $20k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

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.

1
Rush University Medical Center

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.

Health
2
Drexel University

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…

Education
3
New York University

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.

Education
4
William Marsh Rice University

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…

Education
5
Marquette University

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.

Education
6
Massachusetts Eye and Ear Associates Inc

MASSACHUSETTS EYE AND EAR ASSOCIATES, INC. ("MEEA") IS A SPECIALTY PHYSICIAN GROUP PRACTICE. IT PROVIDES CARE FOR PATIENTS OF THE MASSACHUSETTS EYE AND EAR INFIRMARY, INC. ("MEEI"), A RELATED ORGANIZATION. THE PRACTICE SPECIALIZES IN…

Health
7
Trustees of the University of Pennsylvania

The trustees of the university of pennsylvania (the "university") sees itself as having a public service mission. in such regard, the university aims to provide a rich and diverse educational environment for its students; to pioneer…

Education
8
University of Minnesota Physicians

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…

Health
9
Case Western Reserve University

Case Western Reserve University is an independent, research-oriented university with broadly based strengths in health, including medicine, nursing and dentistry; in engineering; in the arts and sciences; and in law, management and social…

Education
10
Philadelphia University

The organization is an affiliate within thomas jefferson university/jefferson health; a comprehensive professional university and tax-exempt integrated healthcare delivery system ("system"), with a tripartite mission of education, research…

Education
11
University of Southern California

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…

Education
12
Wake Forest University

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…

Education

For reference, the grantee most central to the portfolio’s shape is University of Chicago and the most unlike its peers is Massachusetts Eye & Ear Infirmary. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 11 of the 21 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.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
10/11
Grantees still filing
9/11
Grew since you first funded

Where your money sits — by cause, then by grantee

University of Miami — $35,000 · EducationUniversity of MiamiDUKE UNIVERSITY — $35,000 · EducationDUKE UNIVERSITYTHOMAS JEFFERSON UNIVERSITY — $33,116 · EducationTHOMAS JEFFERSON UNIVERSITYJOHNS HOPKINS UNIVERSITY — $23,450 · EducationJOHNS HOPKINS UNIVERSITYUniversity of Chicago — $20,000 · EducationUniversity of ChicagoEmory University — $15,000 · EducationEmory UniversityUNIVERSITY OF PITTSBURGH — $15,000 · EducationUNIVERSITY OF PITTSBURGHTHE MEDICAL COLLEGE OF WISCONSIN INC — $14,800 · EducationTHE MEDICAL COLLEGE OF WISCONSIN INCTHE REGENTS OF UNIV OF CA — $20,528 · OtherTHE REGENTS OF UNIV OF CAMOUNT SINAI DEPT OF OTOLARYNG — $20,000 · OtherMOUNT SINAI DEPT OF OTOLARYNGUC LOS ANGELES — $20,000 · OtherUC LOS ANGELESUC SAN FRANCISCO — $20,000 · OtherUC SAN FRANCISCOUNIVERSITY OF CINCINNATI — $20,000 · OtherUNIVERSITY OF CINCINNATIOREGON HEALTH & SCIENE UNIV — $20,000 · OtherOREGON HEALTH & SCIENE UNIVUTMD ANDERSON — $15,000 · OtherUTMD ANDERSONREGENTS OF THE UNIVERSITY OF CALIFORNIA AT IRVINE — $10,000 · OtherREGENTS OF THE UNIVERSITY OF CALIFORNIA AT IR…UNIVERSITY OF MINNESOTA — $8,516 · OtherYALE UNIVERSITY — $8,516 · OtherMASSACHUSETTS EYE & EAR INFIRMARY — $20,000 · HealthNorthwestern University — $20,000 · Recreation & SportsMOUNT SINAI HEALTH SYSTEM INC — $10,000 · Human Services
Education$191,366Other$162,560Health$20,000Recreation & Sports$20,000Human Services$10,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%grantee revenue →↑ your share of their budgetUniversity of Miami — $35,000 over 2y, 0.0% of budgetDUKE UNIVERSITY — $35,000 over 2y, 0.0% of budgetTHOMAS JEFFERSON UNIVERSITY — $33,116 over 3y, 0.0% of budgetJOHNS HOPKINS UNIVERSITY — $23,450 over 2y, 0.0% of budgetNorthwestern University — $20,000 over 1y, 0.0% of budgetUniversity of Chicago — $20,000 over 1y, 0.0% of budgetEmory University — $15,000 over 1y, 0.0% of budgetUNIVERSITY OF PITTSBURGH — $15,000 over 1y, 0.0% of budgetTHE MEDICAL COLLEGE OF WISCONSIN INC — $14,800 over 1y, 0.0% of budgetMOUNT SINAI HEALTH SYSTEM INC — $10,000 over 1y, 0.0% of budget
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.

Government reliance of your grantees

Every dot is one organization North American Skull Base Society 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.

2024
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%8%15%22%30%share of the org’s income from governmentmedian 12%
  • Johns Hopkins University12% of income from government
  • University of Miami5% of income from government
no gov moneyreceives it· size = income
0get no government money at all
0rely on government for over half their income
⤢ axis zoomed · 0–30%
typical government reliance, FY2025

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.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 21 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

Generated from your IRS Form 990 e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph