Funding search · EIN 137147899 · Purchase, NY

Susan S and Kenneth L Wallach

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

202
grants reported
$15.9M
total given
2022–2025
filing years
$10,000
median grant

Based on grants this organization reported to the IRS for tax years 20222025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

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Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

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Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

  • Lincoln Center for the Performing Arts4 grants · $5.0M
  • Wnet4 grants · $1.4M
  • Council On Foreign Relations4 grants · $1.3M
  • The 92nd Street Ym-Ywha2 grants · $1.2M
  • American Museum of Natural History4 grants · $1.1M
  • Rutgers University Rutgers Law School Alumni Association1 grant · $800,000
  • The Chamber Music Society of Lincoln Center3 grants · $750,000
  • Pace University4 grants · $745,000
  • Harvard University Radcliffe Institute for Advanced Study2 grants · $475,000
  • American Academy of Arts and Sciences4 grants · $475,000

Giving over time

$3.5M
2022
$3.9M
2023
$4.5M
2024
$4.0M
2025

Grant history

The 100 largest of 202 grants.

  • $1.3M

    Lincoln Center for the Performing Arts · New York, NY · 2025

    General support

  • $1.3M

    Lincoln Center for the Performing Arts · New York, NY · 2024

    General support

  • $1.3M

    Lincoln Center for the Performing Arts · New York, NY · 2023

    General support

  • $1.3M

    Lincoln Center for the Performing Arts · New York, NY · 2022

    General purpose

  • $1.0M

    Council On Foreign Relations · New York, NY · 2025

    General support

  • $800,000

    Rutgers University Rutgers Law School Alumni Association · Newark, NJ · 2024

    General support

  • $605,000

    The 92nd Street Ym-Ywha · New York, NY · 2023

    General support

  • $600,000

    The Chamber Music Society of Lincoln Center · New York, NY · 2025

    General support

  • $600,000

    The 92nd Street Ym-Ywha · New York, NY · 2022

    General purpose

  • $450,000

    Harvard University Radcliffe Institute for Advanced Study · Cambridge, MA · 2024

    General support

  • $429,573

    Wnet · New York, NY · 2024

    General support

  • $420,000

    American Museum of Natural History · New York, NY · 2024

    General support

  • $410,000

    Wnet · New York, NY · 2023

    General support

  • $385,000

    Pace University · Valhalla, NY · 2023

    General support

  • $375,000

    Wnet · New York, NY · 2022

    General purpose

  • $320,000

    American Museum of Natural History · New York, NY · 2023

    General support

  • $280,000

    Pace University · Valhalla, NY · 2022

    General purpose

  • $240,000

    The Chamber Music Society of Lincoln Center · New York, NY · 2022

    General purpose

  • $200,000

    The 92nd Street Y · New York, NY · 2025

    General support

  • $175,000

    American Academy of Arts and Sciences · Cambridge, MA · 2023

    General support

  • $175,000

    American Museum of Natural History · New York, NY · 2022

    General purpose

  • $150,000

    Wnet · New York, NY · 2025

    General support

  • $150,000

    American Academy of Arts and Sciences · Cambridge, MA · 2024

    General support

  • $150,000

    The 92nd Street Y · New York, NY · 2024

    General support

  • $150,000

    Harvard University Radcliffe Institute for Advance Study · Cambridge, MA · 2023

    General support

  • $145,000

    American Museum of Natural History · New York, NY · 2025

    General support

  • $125,000

    The Chamber Music Society of Lincoln Center · New York, NY · 2024

    General support

  • $100,000

    Council On Foreign Relations · New York, NY · 2024

    General support

  • $100,000

    Council On Foreign Relations · New York, NY · 2023

    General support

  • $80,000

    National Book Foundation · New York, NY · 2024

    General support

  • $80,000

    National Book Foundation · New York, NY · 2023

    General support

  • $76,000

    National Book Foundation · New York, NY · 2022

    General purpose

  • $75,000

    American Academy of Arts and Sciences · Cambridge, MA · 2025

    General support

  • $75,000

    Mastervoices · New York, NY · 2025

    General support

  • $75,000

    American Academy of Arts and Sciences · Cambridge, MA · 2022

    General purpose

  • $60,000

    Harvard University Harvard Law School Alumni Center · Cambridge, MA · 2022

    General purpose

  • $52,000

    Mastervoices · New York, NY · 2024

    General support

  • $50,000

    Martha'S Vineyard Hospital · Oak Bluffs, MA · 2025

    General support

  • $50,000

    Pace University · Valhalla, NY · 2025

    General support

  • $50,000

    Carnegie Endowment for International Peace · Washington, DC · 2024

    General support

  • $50,000

    Martha'S Vineyard Hospital · Oak Bluffs, MA · 2024

    General support

  • $50,000

    Architectural Conservation Trust Act for Massachusetts · Plymouth, MA · 2023

    General support

  • $50,000

    Mastervoices · New York, NY · 2023

    General support

  • $50,000

    Council On Foreign Relations · New York, NY · 2022

    General purpose

  • $50,000

    Harvard University Radcliffe Institute for Advance Study · Cambridge, MA · 2022

    General purpose

  • $45,000

    Spence School · New York, NY · 2025

    General support

  • $40,000

    Spence School · New York, NY · 2022

    General purpose

  • $35,000

    Harvard University President & Fellows of Harvard College · Cambridge, MA · 2025

    General support

  • $35,000

    Spence School · New York, NY · 2024

    General support

  • $35,000

    Spence School · New York, NY · 2023

    General support

  • $35,000

    Princeton Day School · Princeton, NJ · 2022

    General purpose

  • $30,000

    New York Public Library · New York, NY · 2025

    General support

  • $30,000

    Trustees of Columbia University in the City of New York · New York, NY · 2025

    General support

  • $30,000

    New York Public Library · New York, NY · 2024

    General support

  • $30,000

    Pace University · Valhalla, NY · 2024

    General support

  • $30,000

    New York Public Library · New York, NY · 2023

    General support

  • $25,000

    Architectural Conservation Trust Act for Massachusetts · Plymouth, MA · 2025

    General support

  • $25,000

    Harvard University Radcliffe Institute for Advanced Study · Cambridge, MA · 2025

    General support

  • $25,000

    St Hilda'S and St Hugh'S School · New York, NY · 2025

    General support

  • $25,000

    Architectural Conservation Trust Act for Massachusetts · Plymouth, MA · 2024

    General support

  • $25,000

    St Hilda'S and St Hugh'S School · New York, NY · 2024

    General support

  • $25,000

    The Thirty Six East Sixty Second Street Foundation · New York, NY · 2024

    General support

  • $25,000

    New York-Presbyterian Fund · New York, NY · 2023

    General support

  • $25,000

    St Hilda'S and St Hugh'S School · New York, NY · 2023

    General support

  • $25,000

    The Chamber Music Society of Lincoln Center · New York, NY · 2023

    General support

  • $25,000

    Uja-Federation of New York · New York, NY · 2023

    General support

  • $25,000

    Mastervoices · New York, NY · 2022

    General purpose

  • $25,000

    New York Public Library · New York, NY · 2022

    General purpose

  • $25,000

    St Hilda'S and St Hugh'S School · New York, NY · 2022

    General purpose

  • $20,000

    School of American Ballet · New York, NY · 2023

    General support

  • $15,000

    Library Foundation of Los Angeles · Los Angeles, CA · 2025

    General support

  • $15,000

    Library Foundation of Los Angeles · Los Angeles, CA · 2024

    General support

  • $15,000

    Library Foundation of Los Angeles · Los Angeles, CA · 2023

    General support

  • $15,000

    Deerfield Academy · Deerfield, MA · 2022

    General purpose

  • $15,000

    Library Foundation of Los Angeles · Los Angeles, CA · 2022

    General purpose

  • $10,000

    Deerfield Academy · Deerfield, MA · 2025

    General support

  • $10,000

    Economic Group of New York · New York, NY · 2025

    General support

  • $10,000

    Harvard University Harvard Law School Alumni Center · Cambridge, MA · 2025

    General support

  • $10,000

    Louis August Jonas Foundation · Rhinebeck, NY · 2025

    General support

  • $10,000

    Princeton Day School · Princeton, NJ · 2025

    General support

  • $10,000

    The Common Good Institute · New York, NY · 2025

    General support

  • $10,000

    The Recorder News · Katonah, NY · 2025

    General support

  • $10,000

    The Thirty Six East Sixty Second Street Foundation · New York, NY · 2025

    General support

  • $10,000

    Deerfield Academy · Deerfield, MA · 2024

    General support

  • $10,000

    Economic Group of New York · New York, NY · 2024

    General support

  • $10,000

    Harvard University Harvard Law School Alumni Center · Cambridge, MA · 2024

    General support

  • $10,000

    Harvard Universitypresident & Fellows of Harvard College · Cambridge, MA · 2024

    General support

  • $10,000

    International Rescue Committee · New York, NY · 2024

    General support

  • $10,000

    Jewish Museum · New York, NY · 2024

    General support

  • $10,000

    Memorial Sloan-Kettering Cancer Center · New York, NY · 2024

    General support

  • $10,000

    New York Landmarks Conservancy · New York, NY · 2024

    General support

  • $10,000

    New York-Presbyterian Fund · New York, NY · 2024

    General support

  • $10,000

    Nightingale-Bamford School · New York, NY · 2024

    General support

  • $10,000

    Princeton Day School · Princeton, NJ · 2024

    General support

  • $10,000

    The Common Good Institute · New York, NY · 2024

    General support

  • $10,000

    The Recorder News · Katonah, NY · 2024

    General support

  • $10,000

    Caramoor Center for Music and the Arts · Katonah, NY · 2023

    General support

  • $10,000

    Deerfield Academy · Deerfield, MA · 2023

    General support

  • $10,000

    Fiorello H Laguardia Community College Fund · Long Island City, NY · 2023

    General support

  • $10,000

    Harvard University Harvard Law School Alumni Center · Cambridge, MA · 2023

    General support

View all 202 grants →

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Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.