· Private foundation
The Siff Exkorn Family Foundation Stable Rock Services LLC
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where the money goes
Grants by size, and the largest recipients.
| Recipient | Amount |
|---|---|
| ALPINE LEARNING GROUP | $5,000 |
| NEXT FOR AUTISM | $3,000 |
| ORGANIZATION FOR AUTISM RESEARCH | $1,100 |
| AUTISM SCIENCE FOUNDATION | $1,100 |
| FEEDING AMERICA | $500 |
| EN GARDE ARTS | $500 |
| NYACK CENTER | $500 |
| NEW ENGLAND CENTER FOR CHILDREN | $500 |
| ARTS ROCK OF ROCKLAND | $379 |
| B STREET THEATRE | $150 |
| CITY HARVEST | $150 |
| BIRTH DETROIT | $150 |
| PROSPECTPARKORG | $115 |
| I SUPPORT THE GIRLS | $100 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY20–24, $4k) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +32% since the first grant, against 0% for those funded once.
20 repeat relationships: 11 still active in FY2024, 9 since wound down; 3 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 94% of grant dollars renewed an existing relationship; $765 went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- ALALPINE LEARNING GROUP EDUCATION PROGRAM INC8× · 2017–2024 · $23k · revenue +27%
- ASAUTISM SCIENCE FOUNDATION8× · 2017–2024 · $9k · revenue +167%
ORGANIZATION FOR AUTISM RESEARCH6× · 2018–2024 · $8k · revenue +35%
Funded once
- FCFILMMAKERS COLLABORATIVEone grant, 2018 · $3k
- EHEDWARD HOPPER HOUSEone grant, 2022 · $2k
- CFCENTER FOR SAFETY & CHANGE INCone grant, 2021 · $2k · revenue +14%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
Producing and developing plays and musicals.
Amid the proliferation of advice about treatment options for autism, the ability to access accurate information about research-validated approaches is critically important to those seeking effective treatment.
The organization seeks to accomplish its purpose by advocating with employers to include individuals with autism spectrum diagnoses in their diversity and inclusion initiatives; educating employers about the business benefits of hiring…
N of One aims to create breakthroughs in autism by focusing on emerging areas such as the microbiome, immune system, and mitochondrial cell metabolism. We take a venture capital appproach by supporting both innovative academic researchers…
Nassau suffolk services for the autistic (nssa) offers hope to people with autism and their families by providing high quality life-long support through services which enable people with autism to function better in everday life. nssa…
The mission of nyc autism charter schools is to provide individualized, scientifically based educational services to children with autism and other pervasive development disorders.
The production of theater for and with disabled and marginalized artists. also the creation of NY theatrical standards.
At Atlantic, our aim is singular: to empower simple and honest storytelling that fosters greater understanding of our shared world. Across our work, we are a family of artists dedicated to exploring essential truths onstage, be it a show…
The new group is an artist-driven company with a commitment to developing and producing powerful, contemporary theater. while constantly evolving, we maintain an ensemble approach to all our work and an articulated style of emotional…
The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…
Wp theater is the nation's oldest and largest theater company dedicated to developing, producing, and promoting the work of women+ at every stage of their careers. for over four decades we have served as leaders of a global movement…
How this is measured
26 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 26 of the 42 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds NEXT FOR AUTISM INC ↗
- Who funds ALPINE LEARNING GROUP EDUCATION PROGRAM INC ↗
- Who funds AUTISM SCIENCE FOUNDATION ↗
- Who funds ORGANIZATION FOR AUTISM RESEARCH ↗
- Who funds WORLD AGAINST TOYS CAUSING HARM INC ↗
- Who funds NYACK CENTER ↗
- Who funds Soup Angels of Nyack Inc ↗
- Who funds ARTSROCK OF ROCKLAND INC ↗
- Who funds CENTER FOR SAFETY & CHANGE INC ↗
- Who funds Feeding America ↗
- Who funds AUTISM SPEAKS INC ↗
- Who funds THE NEW ENGLAND CENTER FOR CHILDREN INC ↗
- Who funds BROWN UNIVERSITY ↗
- Who funds BIRTH DETROIT INC ↗
- Who funds THE DOLLYWOOD FOUNDATION ↗
- Who funds Physicians For Reproductive Health ↗
- Who funds CITY HARVEST INC ↗
- Who funds EN GARDE ARTS INC ↗
- Who funds For the Girls Inc ↗
- Who funds UNLOCKING AUTISM ↗
- Who funds GAY & SOBER INC ↗
- Who funds New Light Theater Project Inc ↗
- Who funds GRAVITY WATER ↗
- Who funds MANHATTAN CLASS COMPANY INC ↗
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.
Open a dossier: Siff Charitable Foundation · The Chazen Foundation · Jewish Communal Fund · The Bank of America Charitable Foundation Inc · The Pfizer Foundation Inc · American Endowment Foundation · The Blackbaud Giving Fund · Network for Good · National Philanthropic Trust · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund
How this is measured
How much its grantees rely on government
Each dot is one organization The Siff Exkorn Family Foundation Stable Rock Services LLC funds: left to right is the share of its income from government, bottom to top the share from The Siff Exkorn Family Foundation Stable Rock Services LLC. Bigger dots raise more.
- The New England Center for Children Inc: 3% of income from government
How this is measured
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