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New York · Private foundation

Susan S and Kenneth L Wallach Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$4.0M
Granted FY2025(still arriving)
46
Grants FY2025
55
Organizations funded FY2024
20%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$1,250,000
Organizations funded a year
44 to 55
FY2019 to FY2024
States reached, FY2025
5
Total assets, FY2025
$97M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 20% of the organizations Susan S and Kenneth L Wallach Foundation funded were first-time grantees, receiving 23% of its grant dollars.

New vs renewed · share of each year

In FY2024, 77% of grant dollars renewed an existing relationship; $943k went to new ones.

50%100%’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’20’21’22’23’24
Arts & CultureHealthHuman ServicesInternationalEducationEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving44$3.9M9%
FY202455$4.0M20%
FY202350$3.8M18%
FY202244$3.5M14%
FY202144$3.5M16%
FY202047$2.7M28%
FY201944$2.5Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Arts & Culture$15MEducation$3.6MReligion$2.6MInternational$1.7MSocial Science$900kScience & Tech$475kHealth$361kCrime & Legal$55kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
NY
MA
NJ
CT
CA
DC
TX

Top grantees

Largest recipients by total granted, FY2019 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 84 grantees
All grantees of Susan S and Kenneth L Wallach Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Lincoln Center for the Performing Arts Inc$6,635,00071%
American Museum of Natural History$3,450,00071%
The Young Men's and Young Women's Hebrew Association$2,855,00071%
Wnet$1,984,57370%
The Chamber Music Society of Lincoln Center Inc$1,620,00074%
Council on Foreign Relations Inc$1,600,00071%
Pace University$1,020,00070%
American Academy of Arts & Sciences$900,00072%
Mastervoices Inc$279,50075%
National Book Foundation Inc$271,00073%
The New York Public Library Astor Lenox and Tilden Foundations$189,31770%
The Spence School$185,00070%
New York-Presbyterian Fund Inc$185,00050%
Architectural Conservation Trust for Massachusetts Inc$125,000432%
Trustees of Deerfield Academy$115,00070%
The Library Foundation of Los Angeles$105,00070%
Mass General Brigham Incorporated$102,0004n/a
Blue Hill Troupe Ltd$100,000118%
St Hildas and St Hughs School$100,0004n/a
Princeton Day School Inc$95,00070%
Friends Seminary$75,0006n/a
Carnegie Endowment for International Peace$50,00010%
The Common Good Institute Inc$47,50061%
Central Synagogue$45,0007n/a
Huntington's Disease Foundation$40,00060%
The Nightingale-Bamford School$40,00040%
Trevor Day School$35,00070%
The Thirty Six East Sixty Second Street Foundation Inc$35,00023%
Pro Publica Inc$35,00070%
Human Rights First$30,00050%
The Foundation for a Civil Society LTD$30,00033%
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$25,00010%
Caramoor Center for Music & the Arts Inc$23,00030%
Fiorello H Laguardia Community College Foundation Inc$20,00020%
The Hotchkiss School$20,00070%
The Recorder News Inc$20,00022%
School of American Ballet Inc$20,00010%
New York Common Pantry$20,00030%
1898 Foundation Inc$17,00062%
Carnegie Hill Neighbors Inc$16,00070%
Pan-Massachusetts Challenge Inc$15,00010%
Central Park Conservancy Inc$15,00030%
The Browning School$15,00020%
Aperture Foundation Inc$12,00040%
King's Academy Inc$10,00010%
The Jewish Museum$10,00010%
The Philharmonic Symphony Society of Ny Inc$10,00010%
New York Landmarks Conservancy Inc$10,00010%
Educators Notebook$10,0001n/a
Louis August Jonas Foundation Inc$10,00011%
International Rescue Committee INC$10,00010%
Friends of Central Park East High School$9,60018%
Congregation Kol Ami$6,0002n/a
Preservation League of New York State$5,00010%
The Urban Assembly Inc$5,00010%
The Vivian Beaumont Theaterinc D/B/A Lincoln Center Theater$5,00010%
The Fortune Society Inc$5,00010%
The Second Stage Theatre Inc$5,00010%
The Institute of Classical Architecute & Art Texas Chapter$5,00012%
The Vaclav Havel Library Foundation$4,97513%
Lifeforce in Later Years Inc$4,00021%
Three Lakes Council Inc$3,50071%
Westchester Land Trust Inc$3,50070%
Fund for Park Avenue New York Inc$3,50070%
Northern Westchester Hospital Association$3,00010%
Martha's Vineyard Preservation Trust Inc$2,50050%
Island Housing Trust Corporation$2,00020%
Edgartown Yacht Club Foundation Inc$2,00031%
Friends of the Stationers Foundation$2,0001n/a
Lewisboro Volunteer Ambulance Corps Inc$2,00040%
Boathouse Foundation Inc$1,80061%
South Salem Fire Department Inc$1,75040%
Lewisboro Land Trust Inc$1,50011%
United Way of Westchester and Putnam$1,00010%
Martha's Vineyard Playhouse Inc$1,00010%
The Innocence Project Inc$1,00010%
Vineyard Energy Project Inc$1,00013%
New York University School of Law Foundation$1,00010%
Family Nurturing Center of Massachusetts Inc$1,00010%
Giffords Law Center to Prevent Gun Violence$1,00010%
Mass General Brigham Incorporated$1,00010%
Martha's Vineyard Fishermen's Preservation Trust Inc$50010%
Massachusetts Audubon Society Inc$50010%
Friends of Chilmark Public Library$50012%

What it could do for these grantees

Plus 10 recipients with no EIN on record ($1.3M), not named here.

Where it is load-bearing

Susan S and Kenneth L Wallach Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 77 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetLincoln Center for the Performing Arts Inc: $6,635,000 over 7y, 1.0% of budgetAmerican Museum of Natural History: $3,450,000 over 7y, 0.5% of budgetThe Young Men's and Young Women's Hebrew Association: $2,855,000 over 7y, 0.7% of budgetWnet: $1,984,573 over 7y, 0.4% of budgetThe Chamber Music Society of Lincoln Center Inc: $1,620,000 over 7y, 3.7% of budgetCouncil on Foreign Relations Inc: $1,600,000 over 7y, 1.0% of budgetPace University: $1,020,000 over 7y, 0.1% of budgetAmerican Academy of Arts & Sciences: $900,000 over 7y, 1.7% of budgetMastervoices Inc: $279,500 over 7y, 4.6% of budgetNational Book Foundation Inc: $271,000 over 7y, 3.3% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $189,317 over 7y, 0.0% of budgetThe Spence School: $185,000 over 7y, 0.1% of budgetNew York-Presbyterian Fund Inc: $185,000 over 5y, 0.0% of budgetArchitectural Conservation Trust for Massachusetts Inc: $125,000 over 4y, 32% of budgetTrustees of Deerfield Academy: $115,000 over 7y, 0.1% of budgetThe Library Foundation of Los Angeles: $105,000 over 7y, 0.2% of budgetBlue Hill Troupe Ltd: $100,000 over 1y, 18% of budgetPrinceton Day School Inc: $95,000 over 7y, 0.1% of budgetCarnegie Endowment for International Peace: $50,000 over 1y, 0.1% of budgetThe Common Good Institute Inc: $47,500 over 6y, 1.4% of budgetHuntington's Disease Foundation: $40,000 over 6y, 0.5% of budgetThe Nightingale-Bamford School: $40,000 over 4y, 0.0% of budgetTrevor Day School: $35,000 over 7y, 0.0% of budgetThe Thirty Six East Sixty Second Street Foundation Inc: $35,000 over 2y, 3.2% of budgetPro Publica Inc: $35,000 over 7y, 0.0% of budgetHuman Rights First: $30,000 over 5y, 0.1% of budgetThe Foundation for a Civil Society LTD: $30,000 over 3y, 2.7% of budgetUnited Jewish Appeal-Federation of Jewish Philanthropies of New York Inc: $25,000 over 1y, 0.0% of budgetCaramoor Center for Music & the Arts Inc: $23,000 over 3y, 0.2% of budgetFiorello H Laguardia Community College Foundation Inc: $20,000 over 2y, 0.2% of budgetThe Hotchkiss School: $20,000 over 7y, 0.0% of budgetThe Recorder News Inc: $20,000 over 2y, 1.6% of budgetSchool of American Ballet Inc: $20,000 over 1y, 0.1% of budgetNew York Common Pantry: $20,000 over 3y, 0.1% of budget1898 Foundation Inc: $17,000 over 6y, 1.8% of budgetCarnegie Hill Neighbors Inc: $16,000 over 7y, 0.4% of budgetPan-Massachusetts Challenge Inc: $15,000 over 1y, 0.0% of budgetCentral Park Conservancy Inc: $15,000 over 3y, 0.0% of budgetThe Browning School: $15,000 over 2y, 0.0% of budgetAperture Foundation Inc: $12,000 over 4y, 0.1% of budgetKing's Academy Inc: $10,000 over 1y, 0.3% of budgetThe Jewish Museum: $10,000 over 1y, 0.0% of budgetThe Philharmonic Symphony Society of Ny Inc: $10,000 over 1y, 0.0% of budgetNew York Landmarks Conservancy Inc: $10,000 over 1y, 0.2% of budgetLouis August Jonas Foundation Inc: $10,000 over 1y, 0.6% of budgetInternational Rescue Committee INC: $10,000 over 1y, 0.0% of budgetFriends of Central Park East High School: $9,600 over 1y, 7.9% of budgetPreservation League of New York State: $5,000 over 1y, 0.3% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 77.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

The New York Community TrustNY24.1× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · The Ayco Charitable Foundation · The Bessemer Giving Fund · The Ford Foundation · AC Israel Foundation Inc · American Express Foundation · LNS&ARS Foundation · One Hundred Ways Foundation · The Fledgling Fund · The Speyer Family Foundation Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Susan S and Kenneth L Wallach Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Susan S and Kenneth L Wallach Foundation?

Find your warmest path to Susan S and Kenneth L Wallach Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Susan S and Kenneth L Wallach Foundation

How much does Susan S and Kenneth L Wallach Foundation give?
Susan S and Kenneth L Wallach Foundation reported 46 grants totaling $3,973,100 in its FY2025 IRS filing. It funded between 44 and 55 organizations a year over FY2019 to FY2024.
What does Susan S and Kenneth L Wallach Foundation fund?
By grant dollars over FY2019 to FY2025, its largest causes are Arts & Culture (60%), Education (14%), Religion (11%).
Who are Susan S and Kenneth L Wallach Foundation's largest grantees?
By total granted over FY2019 to FY2025: Lincoln Center for the Performing Arts Inc ($6.6M), American Museum of Natural History ($3.5M), The Young Men's and Young Women's Hebrew Association ($2.9M).
Does Susan S and Kenneth L Wallach Foundation fund new organizations?
In FY2024, 20% of the organizations it funded were first-time grantees.
Does Susan S and Kenneth L Wallach Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Susan S and Kenneth L Wallach Foundation?
Its strongest co-funders, measured against what their size predicts, include The New York Community Trust, The Goldman Sachs Charitable Gift Fund, Jewish Communal Fund.
Where is Susan S and Kenneth L Wallach Foundation based?
Susan S and Kenneth L Wallach Foundation is based in NY.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 98 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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