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Dr Joseph B & Lillian Stiefel Foundation Inc at a glance

· Private foundation

Dr Joseph B & Lillian Stiefel Foundation Inc

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$41k
Granted FY2024still arriving
14
Grants FY2024still arriving
4
States reached
$10k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0189% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Animals$94kEnvironment$35kArts & Culture$32kEducation$31kHealth$23kRecreation & Sports$6kHousing & Shelter$3kInternational$3kOther$0
02FY2024 · 14 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k13 grants · $31k
  • $10k–50k1 grant · $10k
$2,500
Median grant
4
States reached
$517k
Total assets
Largest grants
RecipientAmount
CORNELL LAB OF ORNITHOLOGY$10,000
Individual grant recipient$7,500
Individual grant recipient$5,000
NYC BIRD ALLIANCE$4,000
Turks Caicos Reef Fund$3,000
PONTE VEDRA CONCER HALL$2,600
NY BOTANICAL GARDENS$2,500
CAT ASSISTANCE$2,000
St Augustine Lighthouse$1,250
Assoc of Black Gastroentologists$1,000
AMERICAN BIRDING ASSOC$1,000
WHITE PLAINS HOSPITAL FOUNDATION$500
St Augustine Alligator Farm$300
Individual grant recipient$200
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–24) land where the poverty rate runs at 14%, against an area that typically sits at 14%. 48% of its dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 14%SUNY GENESEO FOUNDATION: $5k → 11%ST GREGORY THEATRE GROUP: $3k → 13%CORNELL LAB OF ORNITHOLOGY: $11k → 16%WFUV: $5k → 28%PONTE VEDRA CONCER HALL: $3k → 6%Palace Theater: $3k → 9%UNIVERSITY OF CONN ATHLETIC CLUB: $3k → 11%AMERICAN BIRD CONSERVANCY: $5k → 6%TARRYTOWN MUSIC HALL: $5k → 9%SUNY GENESEO FOUNDATION: $3k → 11%CORNELL LAB OF ORNITHOLOGY: $10k → 16%13 WNET: $2k → 17%NY BOTANICAL GARDENS: $3k → 28%IMMACULATE HS - Liam Devine Fund: $8k → 9%UNIVERSITY OF CONN ATHLETIC CLUB: $3k → 11%AMERICAN BIRD CONSERVANCY: $3k → 6%TARRYTOWN MUSIC HALL - 2021: $5k → 9%CORNELL LAB OF ORNITHOLOGY: $10k → 16%13 WNET: $2k → 17%WFUV FORDHAM UNIVERSITY: $3k → 28%DANBURY HOSPITAL FOUNDATION: $5k → 9%TARRYTOWN MUSIC HALL: $5k → 9%CORNELL LAB OF ORNITHOLOGY: $10k → 16%NY BOTANICAL GARDENS: $3k → 28%DANBURY HOSPITAL FOUNDATION: $4k → 9%TARRYTOWN MUSIC HALL - 2020: $5k → 9%CORNELL LAB OF ORNITHOLOGY: $10k → 16%WFUV FORDHAM UNIVERSITY: $3k → 28%DANBURY HOSPITAL FOUNDATION: $4k → 9%CORNELL LAB OF ORNITHOLOGY: $5k → 16%FRIENDS OF THE IDF: $3k → 17%NY BOTANICAL GARDENS: $3k → 28%IMMACULATE HIGH SCHOOL: $4k → 9%NYC BIRD ALLIANCE: $7k → 17%IMMACULATE HIGH SCHOOL - MUSIC DEPT: $3k → 9%NYC Audubon Society: $5k → 17%IMMACULATE HIGH SCHOOL: $3k → 9%CAT ASSISTANCE: $2k → 9%NYC BIRD ALLIANCE: $4k → 17%IMMACULATE HIGH SCHOOL - LIAM FUND: $3k → 9%CAT ASSISTANCE: $2k → 9%IMMACULATE HIGH SCHOOL - ART DEPT: $2k → 9%THE DOE FUND: $3k → 17%IMMACULATE HS - ART DEPT: $2k → 9%GREENWICH HOSPITAL FOUNDATION: $3k → 9%RIDGEFIELD PLAYHOUSE: $4k → 9%RIDGEFIELD PLAYHOUSE: $3k → 9%RIDGEFIELD PLAYHOUSE: $3k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

83%of every dollar goes to organizations it has funded before.
$214k · 19 repeat orgs$45k to everyone else

Grantees it renews have grown median revenue +40% since the first grant, against +3% for those funded once.

19 repeat relationships: 6 still active in FY2024, 13 since wound down; 8 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

19
13

Total granted

$214k
$30k

Median revenue growth · since first grant

+40%
+3%

Still filing today

26%
38%

New vs renewed · share of each year

In FY2024, 65% of grant dollars renewed an existing relationship; $14k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
AnimalsArts & CultureHealthEducationHousing & ShelterInternationalOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • AB
    American Bird Conservancy
    3× · 2019–2023 · $9k · revenue +26%
  • FU
    Fordham University
    3× · 2018–2020 · $9k · revenue +40%
  • TR
    THE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC
    3× · 2017–2019 · $9k · revenue +45%

Funded once

  • IG
    Individual grant recipient
    one grant, 2021 · $5k
  • IG
    Individual grant recipient
    one grant, 2021 · $5k
  • THE DOE FUND INC
    one grant, 2023 · $3k · revenue +3%
How this is measured

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

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Physician Affiliate Group of New York Pc

To provide accountable, responsive quality care with the highest degree of sensitivity to the needs of our diverse, multilingual population while fulfilling the professional and educational needs of our members.

Health
2
Banner -University Medical Group

Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.

Health
3
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
4
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
5
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
6
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
7
Stony Brook Orthopedic Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
8
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
Newyork-Presbyterianbrooklyn Methodist

To provide excellent healthcare services without regard to age, sex, race, creed, national origin or disability; to serve as an educational and research center for physicians, nurses and healthcare professionals; to provide health…

—
10
Stony Brook Ophthalmology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
Acadia General Hospital Inc

The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.

Health
12
Bridgeport Hospital

To operate an acute care hospital in bridgeport, connecticut for the care and treatment of persons suffering from disease or other physical or mental conditions without regard to race, color, creed, sex, age or ability to pay.

Health
How this is measured
The grantee most central to the portfolio’s shape is White Plains Hospital Medical Center; the most unlike its peers is Assoc of Black Gastroenterologists. 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

13 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 13 of the 40 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
13/13
Grantees still filing
8/13
Grew since first funded

Where the money sits, by cause and then by grantee

CORNELL LAB OF ORNITHOLOGY: $56,050 · OtherCORNELL LAB OF ORNITHOLOGYTurks Caicos Reef Fund: $18,500 · OtherTurks Caicos Reef FundDANBURY HOSPITAL FOUNDATION: $12,500 · OtherDANBURY HOSPITAL FOUNDATIONIMMACULATE HIGH SCHOOL: $12,500 · OtherIMMACULATE HIGH SCHOOLNY BOTANICAL GARDENS: $12,500 · OtherNY BOTANICAL GARDENSIndividual grant recipient: $12,000 · OtherIndividual grant recipientNYC BIRD ALLIANCE: $10,500 · OtherIndividual grant recipient: $7,500 · OtherNYC Audubon Society: $7,500 · OtherSUNY GENESEO FOUNDATION: $7,000 · Other+18 more: $46,300 · Other+18 moreCAT ASSISTANCE INC: $10,250 · AnimalsAmerican Bird Conservancy: $9,000 · AnimalsAMERICAN BIRDING ASSOCIATION: $1,000 · AnimalsTHE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC: $8,500 · Arts & CultureTHE PALACE THEATER GROUP INC: $2,500 · Arts & CultureFordham University: $8,600 · EducationASSOC OF BLACK GASTROENTEROLOGISTS: $1,000 · EducationGREENWICH HOSPITAL: $7,700 · HealthWhite Plains Hospital Medical Center: $500 · HealthTHE DOE FUND INC: $3,250 · Housing & ShelterFRIENDS OF THE ISRAEL DEFENSE FORCES: $2,500 · InternationalNEW YORK RESTORATION PROJECT: $1,250 · Environment
Other$202,850Animals$20,250Arts & Culture$11,000Education$9,600Health$8,200Housing & Shelter$3,250International$2,500Environment$1,250

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCAT ASSISTANCE INC: $10,250 over 7y, 2.1% of budgetAmerican Bird Conservancy: $9,000 over 3y, 0.0% of budgetFordham University: $8,600 over 3y, 0.0% of budgetTHE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC: $8,500 over 3y, 0.0% of budgetGREENWICH HOSPITAL: $7,700 over 6y, 0.0% of budgetTHE DOE FUND INC: $3,250 over 1y, 0.0% of budgetTHE PALACE THEATER GROUP INC: $2,500 over 1y, 0.1% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $2,500 over 1y, 0.0% of budgetSCARSDALE VOLUNTEER AMBULANCE CORPS INC: $1,750 over 1y, 0.1% of budgetNEW YORK RESTORATION PROJECT: $1,250 over 1y, 0.0% of budgetASSOC OF BLACK GASTROENTEROLOGISTS: $1,000 over 1y, 0.1% of budgetAMERICAN BIRDING ASSOCIATION: $1,000 over 1y, 0.1% of budgetWhite Plains Hospital Medical Center: $500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds CAT ASSISTANCE INC ↗
  • Who funds American Bird Conservancy ↗
  • Who funds Fordham University ↗
  • Who funds THE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC ↗
  • Who funds GREENWICH HOSPITAL ↗
  • Who funds THE DOE FUND INC ↗
  • Who funds THE PALACE THEATER GROUP INC ↗
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
  • Who funds SCARSDALE VOLUNTEER AMBULANCE CORPS INC ↗
  • Who funds NEW YORK RESTORATION PROJECT ↗
  • Who funds ASSOC OF BLACK GASTROENTEROLOGISTS ↗
  • Who funds AMERICAN BIRDING ASSOCIATION ↗
  • Who funds White Plains Hospital Medical Center ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

The Bank of America C…Vanguard Charitable E…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
The Bank of America Charitable Foundation IncNC8.3× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Dr Joseph B & Lillian Stiefel Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Dr Joseph B & Lillian Stiefel Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →median 1%
  • The Palace Theater Group Inc: 12% of income from government
  • The Ridgefield Playhouse for Movies and the Performing Arts Inc: 1% of income from government
  • Greenwich Hospital: 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Dr Joseph B & Lillian Stiefel Foundation Inc?

Find your warmest path to Dr Joseph B & Lillian Stiefel Foundation Inc 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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 40 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its 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.

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

Source object · view filing

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More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home