Katz Sidlow Foundation Inc

Private foundation · Grantmaker Mount Vernon, NY EIN: 46-3387683

Katz Sidlow Foundation Inc is a private foundation based in Mount Vernon, New York. It supports charitable organizations through grants, with 2025 awards concentrated among religious, educational, and social-purpose recipients.

Katz Sidlow Foundation Inc at a glance

In short: Katz Sidlow Foundation Inc gave $38K across 15 grants in 2025 (avg $3K), mostly in New York. 47% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$38,138
+23.9% vs 2024
Grants made (2025)
15
+50.0% vs 2024
Average grant
$2,543
-17.4% vs 2024
Median grant
$720
Total assets
$517,699
-2.3% vs 2024
New grantees (estimate)
47% first-time grantees (7 of 15, 2025; small sample)
Primary geography
New York (97% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to Katz Sidlow Foundation Inc

Accepts unsolicited proposals
No
How to Apply

The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.

Contact

Mailing address: 369 Collins Ave, Mount Vernon, NY 10552
Phone: (914) 699-9722

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Katz Sidlow Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Fleetwood Synagogue: $19KFleetwood Synagogue$19KFleetwood Rabbi Fund: $6KFleetwood Rabbi Fund$6KAmerican Friends of Bar Ilan University: $3KAmerican Friends of Bar IlanUniversity$3KSar: $2KSar$2KYeshiva University: $2KYeshiva University$2KFidf: $1KFidf$1KMet Council Jewish Poverty: $934Met Council Jewish Poverty$934Sinai Schools: $720Sinai Schools$720MTVA: $720MTVA$720Yad Ezra: $525Yad Ezra$525

The largest 2025 recipient was Fleetwood Synagogue ($19K). Together the top 10 received $37K.

Grant Size Distribution

71 grants across all recorded years

71<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 71 grants of 71 (100%).

Geographic Focus

Where this funder awards grants

In 2025, 97% of grant dollars went to recipients in New York, 2% to recipients in New Jersey, and 1% to recipients in Colorado.

Grant Distribution by State

8states

Share of 2025 grant dollars across all 15 itemized grants.

Cities

New YorkBronxWalthamMount VernonBrooklynSuffernParamusBerkleyBeverly HillsDenverNew RochellePhiladelphiaWest HarrisonWestburyYonkers

Is Katz Sidlow Foundation Inc open to new grantees?

47%

first-time grantees, 2025

In 2025, 7 of 15 grantees (47%) were first-time recipients. With only 15 grantees, that is a small sample: one grantee more or less moves the share by about 7 points. First grants averaged $2K; repeat grants $3K. How we count

Medians: $720 first-time, $827 repeat.

  • 20% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+16%). Method
  • In 2025 it paid out 84% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$30K$40K13 grants2020 11 grants2021 15 grants2022 20 grants2023 10 grants2024 15 grants2025

From 2020 to 2025, annual grant giving ranged from $31K (2024) to $38K (2025). In 2025 it made 15 grants totaling $38K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Fleetwood Synagogue Mount Vernon, NYReligious$19,238
Fleetwood Rabbi Fund Mount Vernon, NYReligious$6,250
American Friends of Bar Ilan University New York, NYEducational$3,000
Sar Bronx, NYEducational$2,171
Yeshiva University New York, NYEducational$2,000
Fidf New York, NYSocial$1,000
Met Council Jewish Poverty New York, NYSocial$934
Sinai Schools Paramus, NJEducational$720
MTVA New York, NYEducational$720
Yad Ezra Brooklyn, NYSocial$525
Your AI grants department

Ready to take the next step with Katz Sidlow Foundation Inc?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$517,699$25,831$38,138$38,13815$38,138$27,660$45,635
2024$530,006$31,356$32,467$30,77210$30,772$27,635$38,421
2023$531,117$29,362$35,447$34,52920$34,529$120,231$30,397
2022$537,202$36,303$33,810$32,81015$32,810$29,469$31,940
2021$534,709$29,644$33,920$33,25011$33,250$29,384$32,765
2020$538,985$30,972$32,981$32,38913—$29,529$32,929

Under IRS private-foundation payout rules, Katz Sidlow Foundation Inc reported a distributable amount of $46K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants included support for religious organizations and educational and social-purpose recipients. One grantee, Yeshiva University, describes its mission as providing undergraduate, graduate, professional, and post-doctoral education and training, as well as research and clinical programs.

Grantmaking

In 2025, the foundation awarded 15 grants totaling $38,138. Grant amounts ranged from $18 to $19,238, with a median of $720.

The largest listed grants were $19,238 to Fleetwood Synagogue and $6,250 to Fleetwood Rabbi Fund, both for religious purposes; $3,000 to American Friends of Bar Ilan University, $2,171 to SAR, and $2,000 to Yeshiva University, for educational purposes; and $1,000 to FIDF and $934 to Met Council Jewish Poverty, for social purposes.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Rachel Katz as President, Robert Sidlow as Treasurer, and Rena Sidlow and Tova Sidlow as Directors.

Katz Sidlow Foundation Inc is led by Rachel Katz, President on filings since 2021; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Rachel Katz

    President

    On filings since 2021

    2 hrs/week

    No compensation reported

  • Rena Sidlow

    Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • Tova Sidlow

    Director

    On filings since 2021

    1 hr/week

    No compensation reported

  • Robert Sidlow

    Treasurer

    On filings since 2020

    5 hrs/week

    No compensation reported

Former officers (2)
  • Former: Rachel Sidlow (2020–2023) — President
  • Former: Ora Sidlow (2021–2022) — Director

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Katz Sidlow Foundation Inc

How much does Katz Sidlow Foundation Inc give each year?

Katz Sidlow Foundation Inc gave $38K across 15 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $31K across 10 grants.

What is Katz Sidlow Foundation Inc's typical grant size?

Katz Sidlow Foundation Inc's median grant in 2025 was $720, and its average grant was $2,543, across 15 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Katz Sidlow Foundation Inc that year got $2K on average.

Where does Katz Sidlow Foundation Inc give grants?

Katz Sidlow Foundation Inc gives mostly in New York: 97% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were New York, NY (6 grants), Mount Vernon, NY (2 grants), Bronx, NY (2 grants) and Brooklyn, NY (2 grants).

Does Katz Sidlow Foundation Inc give general operating support?

Not in 2025: none of the 15 grants with a stated purpose on Katz Sidlow Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Religious" (6 grants), "Educational" (6 grants) and "Social" (3 grants).

Who are Katz Sidlow Foundation Inc's largest grantees?

Katz Sidlow Foundation Inc's largest 2025 grantees include Fleetwood Synagogue ($19,238), Fleetwood Rabbi Fund ($6,250) and American Friends of Bar Ilan University ($3,000), according to its 2025 IRS Form 990-PF. Together they received 75% of its itemized 2025 grant dollars.

How large is Katz Sidlow Foundation Inc?

Katz Sidlow Foundation Inc reported $518K in total assets on its 2025 IRS Form 990-PF. It paid out $38K in qualifying distributions that year, against a required minimum of $46K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does Katz Sidlow Foundation Inc fund?

No mission statement for the foundation is provided. Its 2025 grants included support for religious organizations and educational and social-purpose recipients. See mission & focus areas ↑

How do I apply for a grant from Katz Sidlow Foundation Inc?

The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Katz Sidlow Foundation Inc's EIN?

Katz Sidlow Foundation Inc's EIN (Employer Identification Number) is 46-3387683. IRS Form 990 filing data is available on this page for 2020–2025.

Does Katz Sidlow Foundation Inc accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS October 6, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS February 23, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS February 24, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS March 11, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS March 23, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS March 18, 2026)
  7. IRS filings on file for fiscal years 2020–2025

Explore Open Grants

Browse active grant opportunities in Katz Sidlow Foundation Inc's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

Marcovici Family Charitable Trust

Lido Beach, NY

The Marcovici Family Charitable Trust funds charitable organizations, with 2024 grants supporting Jewish education, Israel-related organizations, and other causes. Its 17 grants ranged from $500 to $100,000, with a median of $5,000; 93% of funding went to New York recipients. The trust gives only to preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$1.2M

Grants

17

Total Given

$206K

Foundation Q

Brooklyn, NY

Assets

$1.4M

Grants

23

Total Given

$623K

Kolatch Family Foundation

Englewood, NJ

The Kolatch Family Foundation supports organizations working in education, Jewish communal and religious life, financial services, and healthcare, with 2025 grants mainly in Pennsylvania, New York, and New Jersey. Its 68 grants ranged from $36 to $4.5 million, with a median of $10,000. It gives only to preselected organizations and does not accept unsolicited requests.

Assets

$116.4M

Grants

68

Total Given

$6.9M

Jesselson Foundation

New York, NY

The Jesselson Foundation supports general charitable purposes, with recent grants ranging from $1,620 to $100,000 and a median of $12,550. Its 2025 giving went mostly to organizations in New York, with some in Florida. The filing says giving is not restricted to preselected organizations and lists Michael G. Jesselson as the contact; it does not explicitly state whether unsolicited requests are accepted.

Assets

$6.5M

Grants

9

Total Given

$274K

Aviva & Marvin Sussman Foundation

New York, NY

Assets

$31K

Grants

39

Total Given

$62K

Rosenthal Family Foundation

New York, NY

The Rosenthal Family Foundation supports education, Jewish communal organizations, and humanitarian causes, with most 2024 grant dollars going to New York and New Jersey. Its 42 grants ranged from $300 to $110,000, with a median of $6,750. It funds only preselected charities and does not accept unsolicited requests.

Assets

$4.1M

Grants

42

Total Given

$461K

More similar funders

More Funders in New York

The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Katz Sidlow Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

Katz Sidlow Foundation Inc down — hundreds of funders to go?

Want AI to do this for you?