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Janet & Robert W Postma Foundation

Water Mill, NY · EIN 853636639 990-PF tax year 2025“Preselected organizations only” box checked

Historical funder research: IRS Form 990-PF filings from US private foundations, showing who funded what in past years. This is not a list of currently open grant calls, and we do not track open RFPs from private foundations. From public IRS Form 990-PF filings (latest on file for this funder: tax year 2025). Coverage: tax years 2019–2025. Freshness: the IRS releases these returns 1.5–2+ years after the tax year ends, so 2025 is still partial and a funder's newest grants may not appear yet. Last updated: November 14, 2026. Filings can contain errors, so confirm current priorities and deadlines with the funder before applying.

Grants paid (tax yr 2025)
$469,000
Assets (fair market value)
$14,218,052
Median grant to orgs
$2,500
all loaded years
Grants in our data
91
since tax year 2022
Giving by tax year
$126,570
2022
14 grants
$101,000
2023
15 grants
$422,250
2024
31 grants
$469,000
2025
31 grants

Year 2025 is still partial because many returns have not been filed or released yet. That is a freshness issue — coverage in our dataset is tax years 2019–2025.

Top recipient states
NY$168,000
PA$50,000
IL$5,000
NJ$2,500
GA$1,070
VT$1,000
Cause areas funded
Health Care1
Human Services5
Education2

Only 27.6% of this funder's organizational grants could be linked to an IRS cause code.

How to apply (from the 990-PF, tax year 2025)

The foundation checked the box saying it contributes only to preselected organizations and doesn't accept unsolicited requests.

Form & materials
Not stated
Deadlines
Not stated
Restrictions
Not stated
Recent grants to organizations
RecipientLocationPurpose (as filed)AmountTax yr
CmtaGlenolden, PATO FURTHER DONEE'S EXEMPT PURPOSE$25,0002023
St Francis Hospital FoundationRoslyn, NYTO FURTHER DONEE'S EXEMPT PURPOSE$22,0002023
Ichan School of MedicineNew York, NYTO FURTHER DONEE'S EXEMPT PURPOSE$15,0002023
Sco Family of ServicesGlen Cove, NYTO FURTHER DONEE'S EXEMPT PURPOSE$8,5002023
Met Pga FoundationElmsford, NYTO FURTHER DONEE'S EXEMPT PURPOSE$7,5002023
Camp One StepChicago, ILTO FURTHER DONEE'S EXEMPT PURPOSE$5,0002023
Frank's Ms Foundation IncSayville, NYTO FURTHER DONEE'S EXEMPT PURPOSE$4,0002023
East Islip Soccer ClubEast Islip, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002023
Tomorrow's Hope FoundationUniondale, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002023
Sag Harbor Lions ClubSag Harbor, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002023
Eleanor Whitemore Early Childhood CenterEast Hampton, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002023
Snack & FriendsNew York, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,0002023
Bridgehampton Lions ClubBridgehampton, NYTO FURTHER DONEE'S EXEMPT PURPOSE$1,0002023
Evelyn Alexander Wildlife RescueHampton Bays, NYTO FURTHER DONEE'S EXEMPT PURPOSE$5002023
625 FoundationRupert, VTTO FURTHER DONEE'S EXEMPT PURPOSE$5002023
Southampton Hospital FoundationSouthhampton, NYTO FURTHER DONEE'S EXEMPT PURPOSE$50,0002022
CmtaGlenolden, PATO FURTHER DONEE'S EXEMPT PURPOSE$25,0002022
Ichan School of MedicineNew York, NYTO FURTHER DONEE'S EXEMPT PURPOSE$15,0002022
Sco Family of ServicesGlen Cove, NYTO FURTHER DONEE'S EXEMPT PURPOSE$10,5002022
Met Pga FoundationElmsford, NYTO FURTHER DONEE'S EXEMPT PURPOSE$10,0002022
St Francis Hospital FoundationRoslyn, NYTO FURTHER DONEE'S EXEMPT PURPOSE$5,0002022
Bergen Highlands Ramsey Charitable TrustRamsey, NJTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002022
Eleanor Whitemore Early Childhood CenterEast Hampton, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002022
Snack & FriendsNew York, NYTO FURTHER DONEE'S EXEMPT PURPOSE$2,5002022
American Cancer SocietyKennesaw, GATO FURTHER DONEE'S EXEMPT PURPOSE$1,0702022

Grants to individuals are counted but not named.

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