funder-graph › Recipients
Who funds Westchester Day School
EIN 13-2646183 · Mamaroneck, NY
Westchester Day School of Mamaroneck, NY (EIN 13-2646183) was named as a grant recipient by 68 funders in 205 grants paid totaling $7,146,767 in tax years 2018–2025, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$7,146,767
205 grants paid
Funders
68
distinct grantmakers
Tax years
2018–2025
as reported by funders
Funders
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Grants
The 205 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | Vanguard Charitable Endowment Program | Westchester Day School Mamaroneck, NY | A | $225,365 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | National Philanthropic Trust | Westchester Day School Mamaroneck, NY | A | $214,460 | paid | CULTURE & ARTS | 202601289349302480 |
| 2025 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $186,238 | paid | CARING/JEWISH LIFE | 202611349349307791 |
| 2025 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $157,228 | paid | IN FURTHERANCE OF GRANTEE'S TAX-EXEMPT PURPOSE | 202640629349300234 |
| 2025 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $76,759 | paid | For grant recipient's exempt purposes | 202601389349301700 |
| 2025 | Donor Advised Charitable Giving Inc | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $68,010 | paid | EDUCATION | 202611199349300601 |
| 2025 | The Stanley & Vivian Bernstein Foundation | Westchester Day School Mamaroneck, NY | B | $67,000 | paid | CHARITY/EDUCATION | 202601389349100425 |
| 2025 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $62,757 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2025 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $62,757 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | Charities Aid Foundation America | Westchester Day School Scarsdale, NY | A | $30,900 | paid | CHARITABLE DONATION | 202610489349300906 |
| 2025 | New York Section American Camping Association Inc | Westchester Summer Day Mamaaroneck, NY | A | $18,000 | paid | TO HAVE LONG TERM IMPROVEMENTS TO THEIR PROPERTIES AND ENRICH CHILD EXPERIENCES. | 202610559349301306 |
| 2025 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $17,016 | paid | DAF - Jewish Education K-12 | 202621249349302197 |
| 2025 | Hma Charitable Trust C/O Alpine Resources LLC | Westchester Day School Mamaroneck, NY | B | $5,000 | paid | FOR CHARITY'S SPECIFIED SERVICES | 202601049349100035 |
| 2025 | Element Solutions Foundation Inc | Westchester Day School Mamaroneck, NY | B | $2,500 | paid | TO FURTHER THE EXEMPT PURPOSE OF THE ORGANIZATION | 202641319349104179 |
| 2025 | Benjamin & Lorelei Hammerman Foundation Ltd | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | CONTRIBUTION | 202601599349100710 |
| 2025 | The Allen and Erica Josephs Charitable Foundation TR Agreement | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | GENERAL SUPPORT | 202611249349100526 |
| 2025 | David and Roslyn Savitsky Foundation | Westchester Day School New York, NY | C | $1,000 | paid | JEWISH EDUCATION | 202600429349100515 |
| 2025 | Royal Heritage Foundation Inc | Westchester Day School Mamaroneck, NY | B | $860 | paid | GENERAL SUPPORT | 202513019349100906 |
| 2025 | Fritz & Emily Darmstadter Foundation Inc | Westchester Day School Mamaroneck, NY | B | $250 | paid | Education | 202641199349100209 |
| 2025 | Barbara Lehmann Siegel Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $180 | paid | EDUCATION | 202631959349100008 |
| 2024 | Morris & Anna Propp Sons Fund Inc | Westchester Day School Mamararoneck, NY | B | $315,600 | paid | FOR GENERAL OPERATING CHARITABLE NEEDS OF RECIPIENT ORGANIZATION | 202543219349107674 |
| 2024 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $262,000 | paid | CARING/JEWISH LIFE/RESPONDING TO CRISES | 202511349349303781 |
| 2024 | Vanguard Charitable Endowment Program | Westchester Day School Mamaroneck, NY | A | $88,321 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202511349349313096 |
| 2024 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $85,995 | paid | IN FURTHERANCE OF GRANTEE'S TAX-EXEMPT PURPOSE | 202500369349300210 |
| 2024 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $74,665 | paid | For grant recipient's exempt purposes | 202521349349310887 |
| 2024 | National Philanthropic Trust | Westchester Day School Mamaroneck, NY | A | $57,400 | paid | HUMAN SERVICES | 202511339349301311 |
| 2024 | Joan S and Leon Meyers Foundation | Westchester Day School Mamaroneck, NY | B | $50,000 | paid | CHARITABLEDONATION | 202543169349102734 |
| 2024 | Charities Aid Foundation America | Westchester Day School Mamaroneck, NY | A | $40,900 | paid | CHARITABLE DONATION | 202530589349300723 |
| 2024 | Donor Advised Charitable Giving Inc | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $22,310 | paid | EDUCATION | 202541069349300729 |
| 2024 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $21,642 | paid | GENERAL SUPPORT | 202530159349302758 |
| 2024 | Phyllis & Sidney Reisman Foundation | Westchester Day School Mamaroneck, NY | B | $15,000 | paid | PREPARES STUDENTS TO LIVE AS MENSCHES AND LIFELONG LEARNERS AND INSPIRES THEM TO IMPACT THE WORLD AROUND THEM BY CULTIVATING A COMMITMENT TO TORAH, MIDOT, COMMUNITY AND ACADEMIC RIGOR. | 202502879349100110 |
| 2024 | The Stanley & Vivian Bernstein Foundation | Westchester Day School Mamaroneck, NY | B | $13,872 | paid | CHARITY/EDUCATION | 202513109349100926 |
| 2024 | Neiger Foundation in Memory of Rose Getz | Westchester Day School Mamaroneck, NY | B | $11,967 | paid | Donation | 202523209349100852 |
| 2024 | The Nathan Seter Foundation C/O Milbank Tweed Hadley & Mccloy Llp | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | UNRESTRICTED USE OF RECIPIENT | 202523189349100817 |
| 2024 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $9,650 | paid | DAF - Jewish Education K-12 | 202541259349302634 |
| 2024 | Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma | Westchester Day School Mamaroneck, NY | A | $7,300 | paid | EDUCATION | 202531349349310023 |
| 2024 | Norbert & Henry Bratt Charitable Trust | Westchester Day School Mamaroneck, NY | B | $7,200 | paid | GENERAL SUPPORT | 202503189349103185 |
| 2024 | A & B Stein Family Foundation | Westchester Day School Mamaroneck, NY | C | $5,784 | paid | unrestricted | 202503219349104630 |
| 2024 | Emle Inc | Westchester Day School Mamaroneck, NY | B | $5,000 | paid | GENERAL SUPPORT FOR ORGANIZATION'S CHARITABLE PROGRAMMING. | 202523179349103667 |
| 2024 | Morgan Stanley Global Impact Funding Trust Inc | Westchester Day School Mamaroneck, NY | A | $5,000 | paid | UNRESTRICTED GENERAL SUPPORT | 202503239349300435 |
| 2024 | Emle Inc | Westchester Day School Mamaroneck, NY | B | $5,000 | paid | GENERAL SUPPORT FOR ORGANIZATION'S CHARITABLE PROGRAMMING. | 202523179349103667 |
| 2024 | Jpmorgan Chase Foundation | Westchester Day School Mamaroneck, NY | B | $3,000 | paid | MATCHING CONTRIBUTION (GENERAL OPERATING SUPPORT) | 202531699349100608 |
| 2024 | Propp Foundation Inc | Westchester Day School Mamararoneck, NY | B | $2,324 | paid | FOR GENERAL OPERATING CHARITABLE NEEDS OF RECIPIENT ORGANIZATION | 202543159349101754 |
| 2024 | Linsone Inc | Westchester Day School Mamararoneck, NY | B | $2,076 | paid | FOR GENERAL OPERATING CHARITABLE NEEDS OF RECIPIENT ORGANIZATION | 202523159349101477 |
| 2024 | David and Roslyn Savitsky Foundation | Westchester Day School New York, NY | C | $2,000 | paid | JEWISH EDUCATION | 202500489349100100 |
| 2024 | Barbara Lehmann Siegel Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $747 | paid | EDUCATION | 202503079349101705 |
| 2024 | Gantcher Family Foundation C/O Wolf Maryles & Associates LLC | Westchester Caddy Scholarship Elmsford, NY | D | $300 | paid | TO AID THE DONEE ORGANIZATIONS IN CARRYING OUT THEIR EXEMPT FUNCTIONS. | 202443119349102169 |
| 2024 | Spacelady Foundation | Westchester Day School Mamaroneck, NY | B | $180 | paid | UnrestrictedGrant | 202541339349101709 |
| 2023 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $139,000 | paid | JEWISH LIFE | 202411359349312096 |
| 2023 | National Philanthropic Trust | Westchester Day School Mamaroneck, NY | A | $89,800 | paid | EDUCATION | 202431429349301368 |
| 2023 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $88,736 | paid | IN FURTHERANCE OF GRANTEE'S TAX-EXEMPT PURPOSE | 202410969349301036 |
| 2023 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $82,986 | paid | For grant recipient's exempt purposes | 202441369349301334 |
| 2023 | Joan S and Leon Meyers Foundation | Westchester Day School Mamaroneck, NY | B | $50,000 | paid | CHARITABLEDONATION | 202500279349100010 |
| 2023 | Caroline & Joseph S Gruss Life Monument Funds Inc | Westchester Day Schoool Mamaroneck, NY | A | $23,414 | paid | BUILDING RENO,LIFE INS, SCHOLARSHIPS | 202403179349304955 |
| 2023 | Charities Aid Foundation America | Westchester Day School Mamaroneck, NY | A | $20,900 | paid | CHARITABLE DONATION | 202440679349300014 |
| 2023 | Vanguard Charitable Endowment Program | Westchester Day School Mamaroneck, NY | A | $20,900 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202441359349309439 |
| 2023 | Combat Hate Foundation | Westchester Day School Mamaroneck, NY | B | $18,300 | paid | SPONSORING BUSES TO WASHINGTON DC FOR ISRAEL RALLY 11-14-23 | 202403049349302030 |
| 2023 | Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma | Westchester Day School Mamaroneck, NY | A | $16,000 | paid | EDUCATION | 202431369349314563 |
| 2023 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $14,095 | paid | DAF - Jewish Education K-12 | 202421289349303727 |
| 2023 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $13,772 | paid | GENERAL SUPPORT | 202410469349300741 |
| 2023 | The Stanley & Vivian Bernstein Foundation | Westchester Day School Mamaroneck, NY | B | $13,300 | paid | CHARITY/EDUCATION | 202413199349102001 |
| 2023 | Schwab Charitable Fund | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $11,320 | paid | EDUCATION | 202411039349301716 |
| 2023 | Morgan Stanley Global Impact Funding Trust Inc | Westchester Day School Mamaroneck, NY | A | $11,200 | paid | UNRESTRICTED GENERAL SUPPORT | 202403209349313980 |
| 2023 | Norbert & Henry Bratt Charitable Trust | Westchester Day School Mamaroneck, NY | B | $10,800 | paid | GENERAL SUPPORT | 202423209349101922 |
| 2023 | Jewish Federation of Northern New Jersey Inc | Westchester Day School Mamaroneck, NY | A | $10,500 | paid | General | 202421369349316172 |
| 2023 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $10,500 | paid | General Support | 202421369349315612 |
| 2023 | Phyllis & Sidney Reisman Foundation | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | PREPARES STUDENTS TO LIVE AS MENSCHES AND LIFELONG LEARNERS AND INSPIRES THEM TO IMPACT THE WORLD AROUND THEM BY CULTIVATING A COMMITMENT TO TORAH, MIDOT, COMMUNITY AND ACADEMIC RIGOR. | 202432899349101163 |
| 2023 | The Nathan Seter Foundation C/O Milbank Tweed Hadley & Mccloy Llp | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | UNRESTRICTED USE OF RECIPIENT | 202443209349101739 |
| 2023 | The Siegel Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $5,000 | paid | GENERAL OPERATING SUPPORT | 202403109349100610 |
| 2023 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mjeap Endow Mamaroneck, NY | D | $5,000 | paid | EDUCATION | 202412259349100216 |
| 2023 | Marni & Morris Propp II Family Foundation Inc | Westchester Day School Mj Eap End Mamaroneck, NY | D | $5,000 | paid | EDUCATION | 202431499349100208 |
| 2023 | Fried Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $3,600 | paid | General & Unrestricted | 202431939349100918 |
| 2023 | Jpmorgan Chase Foundation | Westchester Day School Mamaroneck, NY | B | $3,000 | paid | GENERAL OPERATING SUPPORT | 202443059349101309 |
| 2023 | Lori & Michael Nash Foundation | Westchester Day School Mamaroneck, NY | B | $1,854 | paid | PROGRAM SUPPORT | 202412829349101401 |
| 2023 | Royal Heritage Foundation Inc | Westchester Day School Mamaroneck, NY | B | $1,500 | paid | GENERAL SUPPORT | 202313329349100811 |
| 2023 | Gantcher Family Foundation C/O Wolf Maryles & Associates LLC | Westchester Caddy Scholarship Elmsford, NY | D | $500 | paid | TO AID THE DONEE ORGANIZATIONS IN CARRYING OUT THEIR EXEMPT FUNCTIONS. | 202441349349100734 |
| 2023 | Amazonsmile Foundation | Westchester Day School Mamaroneck, NY | B | $498 | paid | GENERAL SUPPORT | 202540919349100629 |
| 2023 | M & M Fischer Foundation | Westchester Day School Mamaroneck, NY | B | $120 | paid | Religious | 202423189349103737 |
| 2023 | Barbara Lehmann Siegel Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $60 | paid | EDUCATION | 202411349349102436 |
| 2022 | Morris & Anna Propp Sons Fund Inc | Westchester Day School Mamararoneck, NY | B | $390,000 | paid | FOR GENERAL OPERATING CHARITABLE NEEDS OF RECIPIENT ORGANIZATION | 202343199349109249 |
| 2022 | Vanguard Charitable Endowment Program | Westchester Day School Mamaroneck, NY | A | $223,810 | paid | For recipient's exempt purpose | 202331359349303108 |
| 2022 | Caroline & Joseph S Gruss Life Monument Funds Inc | Westchester Day School Mamaroneck, NY | A | $191,791 | paid | BUILDING RENO.,LIFE INS., SCHOLARSHIPS | 202440879349300619 |
| 2022 | Caroline & Joseph S Gruss Life Monument Funds Inc | Westchester Day School Mamaroneck, NY | A | $191,791 | paid | BUILDING RENO.,LIFE INS., SCHOLARSHIPS | 202343129349301209 |
| 2022 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $159,000 | paid | CARING / JEWISH LIFE | 202321359349306162 |
| 2022 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $129,548 | paid | GENERAL SUPPORT | 202330479349300013 |
| 2022 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $71,190 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $71,190 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2022 | Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma | Westchester Day School Mamaroneck, NY | A | $51,500 | paid | EDUCATION | 202341349349301209 |
| 2022 | Joan S and Leon Meyers Foundation | Westchester Day School Mamaroneck, NY | B | $50,000 | paid | CHARITABLEDONATION | 202313039349100226 |
| 2022 | The Blackbaud Giving Fund | Westchester Day School Mamaroneck, NY | A | $35,782 | paid | GENERAL SUPPORT | 202312409349300046 |
| 2022 | National Philanthropic Trust | Westchester Day School Mamaroneck, NY | A | $23,360 | paid | EDUCATION | 202311359349313966 |
| 2022 | The Siegel Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $22,100 | paid | GENERAL OPERATING SUPPORT | 202303039349100305 |
| 2022 | The Stanley & Vivian Bernstein Foundation | Westchester Day School Mamaroneck, NY | B | $17,960 | paid | CHARITY/EDUCATION | 202331459349100803 |
| 2022 | Charities Aid Foundation America | Westchester Day School Mamaroneck, NY | A | $17,512 | paid | CHARITABLE DONATION | 202320699349300532 |
| 2022 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $11,690 | paid | GENERAL SUPPORT | 202340469349301209 |
| 2022 | Morgan Stanley Global Impact Funding Trust Inc | Westchester Day School Mamaroneck, NY | A | $10,900 | paid | UNRESTRICTED GENERAL SUPPORT | 202302999349301010 |
| 2022 | Jewish Federation of Northern New Jersey Inc | Westchester Day School Mamaroneck, NY | A | $10,860 | paid | GENERAL SUPPORT | 202341359349304899 |
| 2022 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $10,500 | paid | GENERAL SUPPORT | 202341329349302224 |
| 2022 | The Nathan Seter Foundation C/O Milbank Tweed Hadley & Mccloy Llp | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | UNRESTRICTED USE OF RECIPIENT | 202313199349105721 |
| 2022 | Norbert & Henry Bratt Charitable Trust | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | GENERAL SUPPORT | 202333199349105463 |
| 2022 | Barbara Lehmann Siegel Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $6,400 | paid | EDUCATION | 202303119349101910 |
| 2022 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $5,680 | paid | DAF - Jewish Education K-12 | 202321319349304847 |
| 2022 | The Vanadium Charitable Foundation | Westchester Day School Mamaroneck, NY | A | $5,250 | paid | TO PROVIDE ASSISTANCE | 202313139349304041 |
| 2022 | Marni & Morris Propp II Family Foundation Inc | Westchester Day School Mj Eap End Mamaroneck, NY | D | $5,000 | paid | EDUCATION | 202333219349100018 |
| 2022 | Fried Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $3,600 | paid | General & Unrestricted | 202321159349100247 |
| 2022 | Louis & Martha Silver Foundation Inc | Westchester Day School Mamaroneck, NY | B | $3,600 | paid | Unrestricted | 202323139349101857 |
| 2022 | Jpmorgan Chase Foundation | Westchester Day School Mamaroneck, NY | B | $3,000 | paid | GENERAL OPERATING SUPPORT | 202322839349100212 |
| 2022 | Lisa & Michael Leffell Foundation | Westchester Day School - Operating Mamaroneck, NY | D | $2,500 | paid | EDUCATION | 202303199349101480 |
| 2022 | David and Roslyn Savitsky Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | JEWISH EDUCATION | 202300699349100500 |
| 2022 | A & B Stein Family Foundation | Westchester Day School Mamaroneck, NY | C | $1,000 | paid | unrestricted | 202343189349104399 |
| 2022 | The Edward S Gordon Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | UNRESTRICTED | 202311359349106211 |
| 2022 | Amazonsmile Foundation | Westchester Day School Mamaroneck, NY | B | $779 | paid | GENERAL SUPPORT | 202313119349100141 |
| 2022 | The Bank of America Charitable Foundation Inc | Westchester Day School Mamaroneck, NY | B | $750 | paid | PROGRAM/OPERATING SUPPORT | 202301309349101020 |
| 2022 | The Rosalie Katz Family Foundation Inc | Westchester Day School Mamaroneck, NY | B | $375 | paid | UNRESTRICTED | 202311309349100236 |
| 2022 | Gantcher Family Foundation C/O Wolf Maryles & Associates LLC | Westchester Caddy Scholarship Elmsford, NY | D | $150 | paid | TO AID THE DONEE ORGANIZATIONS IN CARRYING OUT THEIR EXEMPT FUNCTIONS. | 202311319349104056 |
| 2022 | M & M Fischer Foundation | Westchester Day School Mamaroneck, NY | B | $120 | paid | Religious | 202333259349100108 |
| 2021 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $91,438 | paid | General support | 202240409349300049 |
| 2021 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $91,000 | paid | JEWISH LIFE | 202211339349304746 |
| 2021 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $85,430 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | Vanguard Charitable Endowment Program | Westchester Day School Mamaroneck, NY | A | $73,250 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202211339349310116 |
| 2021 | Caroline & Joseph S Gruss Life Monument Funds Inc | Westchester Day School Mamaroneck, NY | A | $57,017 | paid | BUILDING RENO, LIFE INS, SCHOLARSHIPS | 202232149349300803 |
| 2021 | Network for Good | Westchester Day School Mamaroneck, NY | A | $39,111 | paid | UNRESTRICTED | 202212289349300736 |
| 2021 | Schwab Charitable Fund | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $31,210 | paid | EDUCATION | 202230499349301028 |
| 2021 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $21,180 | paid | DAF - Jewish Education K-12 | 202221239349301132 |
| 2021 | Center for Initiatives in Jewish Education | Westchester Day School Mamaroneck, NY | A | $17,838 | paid | SUPPLIES | 202241249349302409 |
| 2021 | Jewish Federation of Northern New Jersey Inc | Westchester Day School Mamaroneck, NY | A | $11,680 | paid | GENERAL SUPPORT | 202201379349301515 |
| 2021 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $11,500 | paid | GENERAL SUPPORT | 202231299349303363 |
| 2021 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $8,367 | paid | GENERAL SUPPORT | 202240469349301419 |
| 2021 | Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma | Westchester Day School Mamaroneck, NY | A | $7,500 | paid | EDUCATION | 202241369349307274 |
| 2021 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mamaroneck, NY | B | $7,000 | paid | EDUCATION | 202300459349100610 |
| 2021 | Mbia Foundation | Westchester Day School Mamaroneck, NY | B | $6,600 | paid | GENERAL OPERATING PURPOSE | 202202079349100210 |
| 2021 | Jpmorgan Chase Foundation | Westchester Day School Mamaroneck, NY | B | $3,000 | paid | GENERAL OPERATING SUPPORT | 202232809349100618 |
| 2021 | David and Roslyn Savitsky Foundation | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | JEWISH EDUCATION | 202210819349101236 |
| 2021 | The Siegel Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | GENERAL OPERATING SUPPORT | 202211329349103006 |
| 2021 | Spacelady Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | UnrestrictedGrant | 202211229349100331 |
| 2020 | Morris & Anna Propp Sons Fund Inc | Westchester Day School Mamararoneck, NY | B | $253,000 | paid | FOR GENERAL OPERATING CHARITABLE NEEDS OF RECIPIENT ORGANIZATION | 202113199349103096 |
| 2020 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $249,915 | paid | For grant recipient's exempt purposes | 202121359349300427 |
| 2020 | Caroline & Joseph S Gruss Life Monument Funds Inc | Westchester Day School Mamaroneck, NY | A | $185,046 | paid | BUILDING REO, LIFE UNS, SCHOLARSHIPS | 202142379349300509 |
| 2020 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $110,868 | paid | General support | 202110399349300631 |
| 2020 | The Bl Squared Foundation | Westchester Day School Mamaroneck, NY | B | $73,000 | paid | EDUCATION | 202133099349100663 |
| 2020 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $32,000 | paid | JEWISH LIFE | 202111349349302996 |
| 2020 | Joan S and Leon Meyers Foundation | Westchester Day School Mamaroneck, NY | B | $27,000 | paid | CHARITABLEDONATION | 202103139349100730 |
| 2020 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $26,600 | paid | DAF - Jewish Education K-12 | 202141249349301979 |
| 2020 | The Siegel Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $26,180 | paid | GENERAL OPERATING SUPPORT | 202102529349101410 |
| 2020 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mamaroneck, NY | B | $24,000 | paid | EDUCATION | 202143169349103339 |
| 2020 | Schwab Charitable Fund | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $20,725 | paid | EDUCATION | 202140489349301804 |
| 2020 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $17,000 | paid | GENERAL SUPPORT | 202121329349302972 |
| 2020 | Jewish Federation of Northern New Jersey Inc | Westchester Day School Mamaroneck, NY | A | $17,000 | paid | GENERAL SUPPORT | 202141319349302349 |
| 2020 | Mbia Foundation | Westchester Day School Mamaroneck, NY | B | $16,360 | paid | GENERAL OPERATING PURPOSE | 202141979349100304 |
| 2020 | Jewish Community Foundation of the Jewish Federation Council of Greater Los Angeles | Westchester Day School Mamaroneck, NY | A | $12,000 | paid | 202133149349303208 | |
| 2020 | The Nathan Seter Foundation C/O Milbank Tweed Hadley & Mccloy Llp | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | UNRESTRICTED USE OF RECIPIENT | 202221949349100602 |
| 2020 | Norbert & Henry Bratt Charitable Trust | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | GENERAL SUPPORT | 202201819349100505 |
| 2020 | Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma | Westchester Day School Mamaroneck, NY | A | $8,600 | paid | EDUCATION | 202131339349306198 |
| 2020 | Fjc | Westchester Day School Mamaroneck, NY | A | $7,400 | paid | GENERAL OPERATING | 202100479349301310 |
| 2020 | Center for Initiatives for Jewish Education | Westchester Day School Mamaroneck, NY | A | $7,075 | paid | SUPPLIES | 202101329349302755 |
| 2020 | American Online Giving Foundation Inc | Westchester Day School Mamaroneck, NY | A | $5,133 | paid | GENERAL SUPPORT | 202120469349300002 |
| 2020 | The Edward S Gordon Foundation | Westchester Day School Mamaroneck, NY | B | $5,000 | paid | UNRESTRICTED | 202121359349100632 |
| 2020 | The Stanley & Vivian Bernstein | Westchester Day School Mamaroneck, NY | B | $2,900 | paid | CHARITY/EDUCATION | 202123079349101567 |
| 2020 | Fried Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | General & Unrestricted | 202133139349101613 |
| 2020 | Louis & Martha Silver Foundation Inc | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | CHARITABLE PURPOSE | 202103199349107105 |
| 2020 | The Ellen and Michael Goldberg Family Foundation Inc | Westchester Day School Mamaroneck, NY | B | $1,800 | paid | GENERAL FINANCIAL SUPPORT | 202113169349103256 |
| 2020 | Morgan Stanley Foundation Inc | Westchester Day School Mamaroneck, NY | B | $1,500 | paid | VOLUNTEER INCENTIVE PROGRAM | 202113159349100421 |
| 2020 | Benjamin & Lorelei Hammerman Foundation Ltd | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | CONTRIBUTION | 202133149349100928 |
| 2020 | The Zimmer Family Foundation Inc C/O Jennifer Zimmer | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | TO PROMOTE THE WORK OF THE ORGANIZATION | 202123069349100402 |
| 2020 | David and Roslyn Savitsky Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | JEWISH EDUCATION | 202110689349100011 |
| 2020 | Spacelady Foundation | Westchester Day School Mamaroneck, NY | B | $500 | paid | UNRESTRICTED GRANT | 202111259349101126 |
| 2020 | Amazonsmile Foundation | Westchester Day School Mamaroneck, NY | B | $451 | paid | GENERAL SUPPORT | 202113199349100901 |
| 2020 | S & G Kaplan Fund Inc | Westchester Day School Mamaroneck, NY | B | $375 | paid | General working funds of organization for religious educational and charitable purposes | 202133099349101293 |
| 2020 | A & B Stein Family Foundation | Westchester Day School Mamaroneck, NY | C | $360 | paid | unrestricted | 202142469349100509 |
| 2020 | Fried Family Charitable Foundation | Westchester Day School Mamaroneck, NY | B | $360 | paid | WDS SHAVUOT APPEAL Fund | 202133139349101613 |
| 2019 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $104,796 | paid | General Support | 202000429349300605 |
| 2019 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $51,354 | paid | For grant recipient's exempt purposes | 202041789349301474 |
| 2019 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $23,000 | paid | JEWISH LIFE | 202041829349300414 |
| 2019 | Schwab Charitable Fund | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $20,600 | paid | EDUCATION | 202010489349300101 |
| 2019 | Jewish Federation of Northern New Jersey Inc | Westchester Day School Mamaroneck, NY | A | $19,000 | paid | General Support | 202021689349301617 |
| 2019 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $19,000 | paid | General Support | 202031329349301438 |
| 2019 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $15,040 | paid | DAF - Jewish Education | 202011239349300701 |
| 2019 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mjeap Endow Mamaroneck, NY | D | $14,000 | paid | EDUCATION | 202110439349100201 |
| 2019 | Marni & Morris Propp II Family Foundation Inc | Westchester Day School Mamaroneck, NY | B | $12,700 | paid | EDUCATION | 202110639349100011 |
| 2019 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mamaroneck, NY | B | $10,000 | paid | EDUCATION | 202110439349100201 |
| 2019 | Center for Initiatives in Jewish Education Inc | Westchester Torah Academy New Rochelle, NY | A | $9,149 | paid | Supplies | 202041929349300234 |
| 2019 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Journal Ad Mamaroneck, NY | D | $7,500 | paid | EDUCATION | 202110439349100201 |
| 2019 | Oliner Foundation | Westchester Day School Mamarneck, NY | C | $5,000 | paid | GEN'L RELIGIOUS ACTIVITIES | 202011289349100601 |
| 2019 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Plotnick End Mamaroneck, NY | D | $4,000 | paid | EDUCATION | 202110439349100201 |
| 2019 | Spacelady Foundation | Westchester Day School Mamaroneck, NY | B | $2,500 | paid | UNRESTRICTED GRANT | 202011339349100811 |
| 2019 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Daman Endow Mamaroneck, NY | D | $1,000 | paid | EDUCATION | 202110439349100201 |
| 2019 | David and Roslyn Savitsky Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | JEWISH EDUCATION | 202000249349100200 |
| 2019 | Max & Anna Pressner Foundation Inc C/O Jerry Pressner | Westchester Day School Mamaroneck, NY | B | $600 | paid | SUPPORT ORGANIZATION | 202012409349100226 |
| 2019 | Royal Heritage Foundation Inc | Westchester Day School Mamaroneck, NY | B | $360 | paid | GENERAL SUPPORT | 201903449349100300 |
| 2018 | Jewish Communal Fund | Westchester Day School Mamaroneck, NY | A | $87,308 | paid | General Support | 201930309349300313 |
| 2018 | Fidelity Investments Charitable Gift Fund | Westchester Day School Mamaroneck, NY | A | $81,627 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | Mortimer J & Eugenie Alter Propp Fund | Westchester Day School Mamaroneck, NY | B | $60,000 | paid | VARIOUS CHARITABLE PURPOSES | 201922519349100302 |
| 2018 | Goldman Sachs Philanthropy Fund | Westchester Day School Mamaroneck, NY | A | $25,000 | paid | GENERAL SUPPORT | 201922279349300402 |
| 2018 | Helen and Jack Lubliner Family Foundation Inc | Westchester Day School Mamaroneck, NY | A | $17,500 | paid | GENERAL SUPPORT | 201900919349300115 |
| 2018 | United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc | Westchester Day School Mamaroneck, NY | A | $17,000 | paid | JEWISH LIFE | 201921359349305397 |
| 2018 | Rabbi Isaac Elchanan Theological Seminary | Westchester Day School Mamaroneck, NY | A | $15,000 | paid | EDUCATION | 201901349349308675 |
| 2018 | Schwab Charitable Fund | Westchester Day School Mamaroneck NY Mamaroneck, NY | A | $9,880 | paid | EDUCATION | 201930459349302018 |
| 2018 | Combined Jewish Philanthropies of Greater Boston Inc | Westchester Day School Mamaroneck, NY | A | $6,670 | paid | DAF -Jewish Education K-12 | 201920999349301252 |
| 2018 | Center for Initiatives in Jewish Education Inc | Westchester Day School Mamaroneck, NY | B | $5,158 | paid | Supplies | 201941359349312894 |
| 2018 | Gelles Family Foundation | Westchester Day School Mamaroneck, NY | B | $2,500 | paid | Unrestricted | 201911769349100006 |
| 2018 | Morgan Stanley Foundation Inc | Westchester Day School Mamaroneck, NY | B | $2,000 | paid | VOLUNTEER INCENTIVE PROGRAM | 201923199349105432 |
| 2018 | David and Roslyn Savitsky Foundation | Westchester Day School Mamaroneck, NY | B | $1,000 | paid | JEWISH EDUCATION | 201920159349100407 |
| 2018 | The Silberman Aqua Family Foundation | Westchester Day School Mamaroneck, NY | B | $750 | paid | Community | 201921349349101947 |
| 2018 | Max & Anna Pressner Foundation Inc C/O Jerry Pressner | Westchester Day School Mamaroneck, NY | B | $500 | paid | SUPPORT ORGANIZATION | 201911369349100321 |
| 2018 | The Bank of America Charitable Foundation Inc | Westchester Day School Mamaroneck, NY | B | $350 | paid | PROGRAM/OPERATING SUPPORT | 201931349349102143 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.