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Data / Foundation grants / The Siff Exkorn Family Foundation Stable Rock Services LLC

The Siff Exkorn Family Foundation Stable Rock Services LLC: 14 grants to organizations, $13,244 (tax year ended December 2024)

The Siff Exkorn Family Foundation Stable Rock Services LLC, a private foundation in New York, NY, paid 14 grants to organizations totaling $13,244 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 13, 2025. The largest was $5,000 to Alpine Learning Group in Paramus, NJ for donation.

SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.

EIN
421612887
Based in
New York, NY
Assets
$174,742
Grants paid
$13,244
Tax year ended
December 2024

Grants paid, tax year ended December 2024

From the Form 990-PF filed November 13, 2025, IRS object ID 202513179349103571. It reported $13,244 in grants paid; 14 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Alpine Learning GroupParamus, NJDonationHuman services$5,000apps.irs.gov
Next for AutismNew York, NYDonationDiseases, disorders and medical disciplines$3,000apps.irs.gov
Autism Science FoundationNew York, NYDonation$1,100apps.irs.gov
Organization for Autism ResearchArlington, VADonationMedical research$1,100apps.irs.gov
En Garde ArtsBrooklyn, NYDonationArts, culture and humanities$500apps.irs.gov
Feeding AmericaChicago, ILDonationFood, agriculture and nutrition$500apps.irs.gov
New England Center for ChildrenSouthborough, MADonation$500apps.irs.gov
Nyack CenterNyack, NYDonationHuman services$500apps.irs.gov
Arts Rock of RocklandNyack, NYDonation$379apps.irs.gov
B Street TheatreSacramento, CADonation$150apps.irs.gov
Birth DetroitDetroit, MIDonationHealth care$150apps.irs.gov
City HarvestBrooklyn, NYDonation$150apps.irs.gov
ProspectparkorgBrooklyn, NYDonation$115apps.irs.gov
I Support the GirlsWheaton, MDDonation$100apps.irs.gov

Causes funded

From grants whose recipient has a cause.

States funded

Recipient stateGranted
New York$5,744
New Jersey$5,000
Virginia$1,100
Illinois$500
Massachusetts$500
California$150
Michigan$150
Maryland$100

Also on SpecStream

Updated November 13, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.