Private foundation · White Plains, NY

Irwin Weiner Charitable Foundation Inc

View org profile →Find similar funders →Invitation only
Typical grant size
$1K – $1K – $3K
25th · median · 75th percentile
Unique recipients
16
Repeat grantees
16
funded 2+ years

Application procedures · from 2024 990-PF

Leadership · from 2024 990-PF

Michael Markhoff
VICE PRESIDENT
Nancy Allen Markhoff
SECRETARY
Harris Markhoff
PRES & TREAS
Adam Markoff
DIRECTOR
Abigail Markhoff
DIRECTOR
Molly Markhoff
DIRECTOR

Source: IRS Form 990-PF, Part VII. Officers, directors, and trustees as reported by the foundation.

Payout rate · TY 2024
15.6%
grants paid ÷ assets · ~5% IRS minimum
'17
'18
'19
'20
'21
'22
'23
'24
178
Total grants awarded
$474K
Total amount
$3K
Average grant
$18K
Largest grant

Giving by year

2024
$42K
15 grants
2023
$43K
16 grants
2022
$45K
14 grants
2021
$44K
15 grants
2020
$41K
17 grants
2019
$46K
17 grants
2018
$45K
17 grants
2017
$40K
16 grants
2016
$35K
13 grants
2015
$37K
14 grants
2014
$28K
13 grants
2013
$31K
11 grants

Top recipients

12 grants · NY · ≈ likely match
$182K
Muhlenberg Women's Lacrosse
9 grants · PA
$36K
Hamilton College-men's Lacrosse Team
11 grants · NY
$36K
Bedford Free Library
12 grants · MA
$31K
6 grants · NY · ✓ Exact match
$23K
12 grants · NY · ✓ Exact match
$20K
Congregation B'nai Yisrael
6 grants · NY
$17K
8 grants · NY · ✓ Exact match
$16K
Israel Lacrosse
11 grants · NY
$14K
12 grants · NY · ✓ Exact match
$13K

Recipient names are as reported on the 990-PF. ✓ Exact match = EIN matched to IRS records by exact name + state; ≈ likely match = EIN inferred from a closely similar name. The recipient EIN is never stated on the form — it is DoubleNine’s match.

Recent grants · most recent filings first

Holocaust and Human Rights Education Ctr
GENERAL SUPPORT
NY · TY 2024
$15K
Muhlenberg Women's Lacrosse
GENERAL SUPPORT
PA · TY 2024
$4K
Hamilton College-men's Lacrosse Team
GENERAL SUPPORT
NY · TY 2024
$4K
Bedford Free Library
GENERAL PURPOSE
MA · TY 2024
$3K
Veterans Community Project
GENERAL SUPPORT
MO · TY 2024
$3K
Brooklyn Law School
GENERAL SUPPORT
NY · TY 2024
$2K
City Lax Inc
GENERAL SUPPORT
NY · TY 2024
$2K
Israel Lacrosse
GENERAL SUPPORT
NY · TY 2024
$2K
Syracuse University
GENERAL SUPPORT
NY · TY 2024
$2K
American Friends of Magen David
GENERAL SUPPORT
NY · TY 2024
$1K
Blythedale Children's Hospital
GENERAL SUPPORT
NY · TY 2024
$1K
Friends of the Israel Defense Forces
GENERAL SUPPORT
NJ · TY 2024
$1K
Columbia Men's Tennis
GENERAL SUPPORT
NY · TY 2024
$1K
Calvary Hospital
GENERAL SUPPORT
NY · TY 2024
$1K
North East Westchester Special Recreation Inc
GENERAL SUPPORT
NY · TY 2024
$1K
Holocaust and Human Rights Education Ctr
GENERAL SUPPORT
NY · TY 2023
$15K
City Lax Inc
GENERAL SUPPORT
NY · TY 2023
$4K
Veterans Community Project
GENERAL SUPPORT
MO · TY 2023
$3K
Hamilton College-men's Lacrosse Team
GENERAL SUPPORT
NY · TY 2023
$3K
Muhlenberg Women's Lacrosse
GENERAL SUPPORT
PA · TY 2023
$3K
Bedford Free Library
GENERAL PURPOSE
MA · TY 2023
$3K
Brooklyn Law School
GENERAL SUPPORT
NY · TY 2023
$2K
Israel Lacrosse
GENERAL SUPPORT
NY · TY 2023
$2K
Congregation B'nai Yisrael
GENERAL SUPPORT
NY · TY 2023
$2K
Impact100 Westchester
GENERAL SUPPORT
NY · TY 2023
$1K
Syracuse University
GENERAL SUPPORT
NY · TY 2023
$1K
Friends of the Israel Defense Forces
GENERAL SUPPORT
NJ · TY 2023
$1K
American Friends of Magen David
GENERAL SUPPORT
NY · TY 2023
$1K
Blythedale Children's Hospital
GENERAL SUPPORT
NY · TY 2023
$1K
North East Westchester Special Recreation Inc
GENERAL SUPPORT
NY · TY 2023
$1K
Calvary Hospital
GENERAL SUPPORT
NY · TY 2023
$1K
Holocaust and Human Rights Education Ctr
GENERAL PURPOSE
NY · TY 2022
$15K
Syracuse University
GENERAL PURPOSE
NY · TY 2022
$5K
City Lax Inc
GENERAL PURPOSE
NY · TY 2022
$4K
Muhlenberg Women's Lacrosse
ATHLETICS
PA · TY 2022
$3K
Veterans Community Project
GENERAL PURPOSE
MO · TY 2022
$3K
Brooklyn Law School
GENERAL PURPOSE
NY · TY 2022
$3K
Hamilton College-men's Lacrosse Team
ATHLETICS
NY · TY 2022
$3K
Bedford Free Library
GENERAL PURPOSE
MA · TY 2022
$3K
Congregation B'nai Yisrael
GENERAL PURPOSE
NY · TY 2022
$2K
Impact100 Westchester
GENERAL PURPOSE
NY · TY 2022
$1K
Calvary Hospital
GENERAL PURPOSE
NY · TY 2022
$1K
Blythedale Children's Hospital
GENERAL PURPOSE
NY · TY 2022
$1K
Israel Lacrosse
ATHLETICS
NY · TY 2022
$1K
North East Westchester Special Recreation Inc
GENERAL PURPOSE
NY · TY 2022
$1K
Holocaust and Human Rights Education Ctr
GENERAL PURPOSE
NY · TY 2021
$15K
Syracuse University
GENERAL PURPOSE
NY · TY 2021
$5K
Brooklyn Law School
GENERAL PURPOSE
NY · TY 2021
$5K
Hamilton College-men's Lacrosse Team
ATHLETICS
NY · TY 2021
$3K
Muhlenberg Women's Lacrosse
ATHLETICS
PA · TY 2021
$3K

Source: IRS Form 990-PF, Part XV. Up to 50 most recent grants shown.