THE ISAAC SITT FOUNDATION

Cite this

Plain text THE ISAAC SITT FOUNDATION. furp.org, nonprofit organization profile, tax years 2019–2024. https://furp.org/org/the-isaac-sitt-foundation-137200888. Retrieved 2026-11-02.

APA furp.org. (n.d.). THE ISAAC SITT FOUNDATION [Nonprofit organization profile; tax years 2019–2024]. Retrieved November 2, 2026, from https://furp.org/org/the-isaac-sitt-foundation-137200888

MLA “THE ISAAC SITT FOUNDATION.” furp.org, tax years 2019–2024, https://furp.org/org/the-isaac-sitt-foundation-137200888. Accessed 2 Nov. 2026.

Retrieved 2026-11-02; covers tax years 2019–2024. Data: furp.org, CC BY 4.0.

2024 · Form 990PF · revenue $502K · expenses $511K · assets $33K

Also known as
C/O VESPER HOLDINGS
EIN
13-7200888
Address
595 MADISON AVE 37TH FLOOR, NEW YORK, NY 10022-1641
NTEE code
T20
Exempt type
501(c)(3): charitable, religious, educational, scientific or literary (trust)
Ruling date
December 2000 (when the IRS recognized its exemption)
IRS status
Exempt (unconditional) (IRS Business Master File) IRS data ↗
Tax-deductible donations
Yes: listed in IRS Publication 78 (private foundation) Pub 78 ↗
Foundation status
Private non-operating foundation
Cross-check
ProPublica Nonprofit Explorer

Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).

People paid by the organization

None of the 1 person listed on these returns reported compensation from the organization. They are listed below.

Officers and directors, no compensation reported

1 person listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.

NameLatest titleYearsHrs/wk (latest)CompensationOrganizations
Isaac J Sitt PRESIDENT2019-2024 4 $0 reported 1

People by year

2024 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01
2023 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01
2022 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01
2021 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01
2020 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01
2019 · 1 person listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
ISAAC J SITT PRESIDENT4 $0-$0 $01

Highest-paid independent contractors

No independent contractors reported.

Who the money went to

Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.

2024 · 63 grants to organizations · $504K
2023 · 48 grants to organizations · $312K
2022 · 57 grants to organizations · $293K
2021 · 0 grants to organizations · $0 · 1 summary line · $436K

This return lists 1 summary line (program totals pointing to a separate statement) instead of each grant. The itemized list was filed as an attachment that isn't in the IRS's public e-file data, so the recipients can't be shown.

2020 · 0 grants to organizations · $0 · 1 summary line · $23K

This return lists 1 summary line (program totals pointing to a separate statement) instead of each grant. The itemized list was filed as an attachment that isn't in the IRS's public e-file data, so the recipients can't be shown.

2019 · 0 grants to organizations · $0 · 1 summary line · $44K

This return lists 1 summary line (program totals pointing to a separate statement) instead of each grant. The itemized list was filed as an attachment that isn't in the IRS's public e-file data, so the recipients can't be shown.

Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.

Who gave

Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.

2024 · 1 contributor · $500K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $500,000- Form 990PF Sch. B, 2024 · filing
2023 · 1 contributor · $276K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $276,194- Form 990PF Sch. B, 2023 · filing
2022 · 1 contributor · $317K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $317,000- Form 990PF Sch. B, 2022 · filing
2021 · 1 contributor · $453K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $452,694- Form 990PF Sch. B, 2021 · filing
2020 · 1 contributor · $23K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $23,252- Form 990PF Sch. B, 2020 · filing
2019 · 1 contributor · $44K
#ContributorTypeCity, stateTotalNoncashSource
1 ISAAC SITT Person NEW YORK, NY $44,235- Form 990PF Sch. B, 2019 · filing

Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

Finances

Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.

RevenueExpensesAssetsNet assetsContributionsProgram revenueOfficer payEmployeesVolunteers
2024 · Form 990PF period ending 2025-09-30 · view filing · original 990 ↗
$502,394$511,028 $33,173$33,173 $500,000- $0--
2023 · Form 990PF period ending 2024-09-30 · view filing · original 990 ↗
$276,878$318,218 $41,807$41,807 $276,194- $0--
2022 · Form 990PF period ending 2023-09-30 · view filing · original 990 ↗
$317,683$297,422 $83,824$83,824 $317,000- $0--
2021 · Form 990PF period ending 2022-09-30 · view filing · original 990 ↗
$452,746$437,857 $63,563$63,563 $452,694- $0--
2020 · Form 990PF period ending 2021-09-30 · view filing · original 990 ↗
$23,254$24,465 $29,857$28,996 $23,252- $0--
2019 · Form 990PF period ending 2020-09-30 · view filing · original 990 ↗
$50,456$47,940 $30,207$30,207 $48,500- $0--

Funders of this organization

Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).

Nearby + Similar BETA

Organizations like this one: what they do and who they are linked to

Same category: NTEE code and revenue

Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)

OrganizationStateNTEELatest revenueLatest expensesTop-paid titleTop payWhy similar
THE INTANDEM FOUNDATION INCNYT20 $481,775$235,027 PRESIDENT & CEO$0 Same NTEE code T20, revenue within 2x, same state, similar name
DLH FOUNDATIONNYT20 $470,000$510,352 DIRECTOR$0 Same NTEE code T20, revenue within 2x, same state
LANDAU FOUNDATIONNYT20 $500,335$928,650 Trustee$0 Same NTEE code T20, revenue within 2x, same state
KEDRON FOUNDATIONNYT20 $476,555$194,821 PRESIDENT/DIRECTOR$0 Same NTEE code T20, revenue within 2x, same state
ANTICA FOUNDATIONNYT20 $526,589$13,895 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
SOLSO FAMILY FOUNDATION INCNYT20 $477,501$599,807 DIRECTOR$0 Same NTEE code T20, revenue within 2x, same state
SUSAN S SHIVA FOUNDATIONNYT20 $497,822$1,192,447 TRUSTEE$0 Same NTEE code T20, revenue within 2x, same state
LUCELIA FOUNDATION INCNYT20 $491,491$608,563 DIR, PRES$0 Same NTEE code T20, revenue within 2x, same state
SALOMON FAMILY FOUNDATION INCNYT20 $532,125$328,704 Treasurer$0 Same NTEE code T20, revenue within 2x, same state
NEWCASTLE FOUNDATION TRNYT20 $476,148$377,776 TRUSTEE$27,777 Same NTEE code T20, revenue within 2x, same state
DELAPENA FOUNDATION INCNYT20 $470,454$369,337 DIRECTOR$0 Same NTEE code T20, revenue within 2x, same state
YISNASAY FOUNDATIONNYT20 $500,832$300,897 Trustee$0 Same NTEE code T20, revenue within 2x, same state
THE JAMES AND ROBIN COOGAN FOUNDATIONNYT20 $538,398$250,140 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
CHIA FAMILY FOUNDATION INCNYT20 $495,498$1,626,285 DIRECTOR$0 Same NTEE code T20, revenue within 2x, same state
KEN JAGROO FOUNDATION INCNYT20 $510,050$571,957 COMPLIANCE OFFICER$66,962 Same NTEE code T20, revenue within 2x, same state
WOLF FAMILY FOUNDATIONNYT20 $502,852$10,484 Trustee$0 Same NTEE code T20, revenue within 2x, same state
ONO PHARMA FOUNDATIONNYT20 $505,189$3,450,973 SECRETARY$4,920 Same NTEE code T20, revenue within 2x, same state
ZHOU FAMILY FOUNDATIONNYT20 $492,686$61,375 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
SING AND JOANNE CHAN FOUNDATION INCNYT20 $536,634$101,034 President$0 Same NTEE code T20, revenue within 2x, same state
KORFF FAMILY FOUNDATIONNYT20 $506,323$118,945 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
COWAN FAMILY FOUNDATIONNYT20 $470,003$111,824 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
AICHER FAMILY FOUNDATION INCNYT20 $491,129$1,689,924 PRESIDENT$0 Same NTEE code T20, revenue within 2x, same state
ATHENS COMMUNITY FOUNDATIONNYT20 $479,666$372,215 TRUSTEE$0 Same NTEE code T20, revenue within 2x, same state
LUCKOW FAMILY FOUNDATION INCNYT20 $475,317$832,178 VP/ SECRETARY TREASURER$0 Same NTEE code T20, revenue within 2x, same state
RADIF CHESED FOUNDATIONNYT20 $501,032$73,347 TRUSTEE$0 Same NTEE code T20, revenue within 2x, same state

Who funds organizations like this

Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).

GrantorTypeTotal givenGrantsOrganizations fundedYearsWhich ones
NATIONAL SOCIETY FOR HEBREW DAY SCHOOLS DAF sponsor$650,0002 12018–2019 WOLF FAMILY FOUNDATION
NATIONAL CHRISTIAN CHARITABLE FOUNDATION DAF sponsor$159,91710 12014–2024 TWO FLY FOUNDATION INC
FIDELITY INVESTMENTS CHARITABLE GIFT FUND DAF sponsor$101,5257 22019–2024 TWO FLY FOUNDATION INC; PATRICK CANTLAY FOUNDATION
MCMURRY FOUNDATION Private foundation$76,5006 12020–2024 TWO FLY FOUNDATION INC
THE JOSEPH J SCOTT FOUNDATION Private foundation$60,0006 12010–2024 TWO FLY FOUNDATION INC
COMMUNITIES FOUNDATION OF OKLAHOMA INC DAF sponsor$40,0004 12015–2018 TWO FLY FOUNDATION INC
AMERICAN ONLINE GIVING FOUNDATION INC DAF sponsor$25,0533 22021–2024 TWO FLY FOUNDATION INC; PATRICK CANTLAY FOUNDATION
PECKHAM FAMILY FOUNDATION Private foundation$15,0004 12013–2016 ATHENS COMMUNITY FOUNDATION
GREATER OLEAN COMMUNITY FOUNDATION DAF sponsor$11,0491 12021–2021 THE INTANDEM FOUNDATION INC
NATIONAL PHILANTHROPIC TR DAF sponsor$6,0001 12018–2018 TWO FLY FOUNDATION INC
OKLAHOMA CITY COMMUNITY FOUNDATION INC DAF sponsor$5,8001 12018–2018 TWO FLY FOUNDATION INC
KAYNE ANDERSON CAPITAL ADVISORS FOUNDATION Private foundation$1,3001 12023–2023 TWO FLY FOUNDATION INC
NORTHWEST CHARITABLE FOUNDATION Private foundation$5001 12025–2025 THE INTANDEM FOUNDATION INC

The full list · all similar organizations

Where the money went

Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

2024 · Form 990PF · $511,028 spent · pay $0 · grants $504,008 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $504,008 98.6%
Fees: accounting $7,000 1.4%
Other expenses $20 0.0%
Total$511,028100%

View the filing

2023 · Form 990PF · $318,218 spent · pay $0 · grants $311,816 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $311,816 98.0%
Fees: accounting $6,402 2.0%
Total$318,218100%

View the filing

2022 · Form 990PF · $297,422 spent · pay $0 · grants $292,566 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $292,566 98.4%
Fees: accounting $4,502 1.5%
Other expenses $354 0.1%
Total$297,422100%

View the filing

2021 · Form 990PF · $437,857 spent · pay $0 · grants $436,188 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $436,188 99.6%
Other expenses $1,669 0.4%
Total$437,857100%

View the filing

2020 · Form 990PF · $24,465 spent · pay $0 · grants $23,252 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $23,252 95.0%
Other expenses $1,213 5.0%
Total$24,465100%

View the filing

2019 · Form 990PF · $47,940 spent · pay $0 · grants $44,415 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $44,415 92.6%
Fees: accounting $3,500 7.3%
Other expenses $25 0.1%
Total$47,940100%

View the filing

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