Funding search · EIN 853636639 · Water Mill, NY

Janet & Robert W Postma Foundation

Name: Janet & Robert W Postma Foundation grants, 2022–2025
Creator: PaperOrbit
License: https://www.irs.gov/charities-non-profits/exempt-organization-public-disclosure-and-availability-requirements

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

91
grants reported: $1.1M
total given: 2022–2025
filing years: $5,000
median grant

Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

donee further

Full IRS filings ↗How this is built Report an error

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.

Top recipients

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

Southampton Hospital Foundation1 grant · $150,000
Southhampton Hospital Foundation1 grant · $100,000
Cmta4 grants · $100,000
North Sea Maritime Center2 grants · $61,500
Leadership Roundtable2 grants · $55,000
Hss Foundation1 grant · $51,000
Myriad USA1 grant · $50,000
Southampton Hospital Foundation1 grant · $50,000
Sag Harbor Lions Club Pierson Schol2 grants · $34,000
Ichan School of Medicine2 grants · $30,000

Giving over time

$126,570

2022

$101,000

2023

$422,250

2024

$469,000

2025

Grant history

All 91 reported grants, largest first.

$150,000
Southampton Hospital Foundation · Southampton, NY · 2024
Tax Exempt Contribution
$100,000
Southhampton Hospital Foundation · Southampton, NY · 2025
Tax Exempt Contribution
$51,500
North Sea Maritime Center · Southampton, NY · 2025
Tax Exempt Contribution
$51,000
Hss Foundation · New York, NY · 2025
Tax Exempt Contribution
$50,000
Leadership Roundtable · Washington, DC · 2025
Tax Exempt Contribution
$50,000
Myriad USA · New York, NY · 2024
Tax Exempt Contribution
$50,000
Southampton Hospital Foundation · Southhampton, NY · 2022
To further donee's exempt purpose
$27,500
St Francis Hospital Foundation · Roslyn, NY · 2024
Tax Exempt Contribution
$25,000
Cmta · Glenolden, PA · 2025
Tax Exempt Contribution
$25,000
Cmta · Glenolden, PA · 2024
Tax Exempt Contribution
$25,000
Cmta · Glenolden, PA · 2023
To further donee's exempt purpose
$25,000
Cmta · Glenolden, PA · 2022
To further donee's exempt purpose
$22,000
St Francis Hospital Foundation · Roslyn, NY · 2023
To further donee's exempt purpose
$20,000
Eeda Foundation · Riverhead, NY · 2025
Tax Exempt Contribution
$20,000
Ichan Schoold of Medicine · New York, NY · 2024
Tax Exempt Contribution
$20,000
Sag Harbor Lions Club Pierson Schol · Sag Harbor, NY · 2024
Tax Exempt Contribution
$15,000
Ichan School of Medicine · New York, NY · 2025
Tax Exempt Contribution
$15,000
Water Mill Improvement Assoc · Water Mill, NY · 2025
Tax Exempt Contribution
$15,000
Carmel Connection Foundation · Point Pleasant Beach, NJ · 2024
Tax Exempt Contribution
$15,000
Ichan School of Medicine · New York, NY · 2023
To further donee's exempt purpose
$15,000
Ichan School of Medicine · New York, NY · 2022
To further donee's exempt purpose
$14,000
Sag Harbor Lions Club Pierson Schol · Sag Harbor, NY · 2025
Tax Exempt Contribution
$11,000
Met Pga Foundation · Elmsford, NY · 2025
Tax Exempt Contribution
$11,000
Snack Friends · New York, NY · 2025
Tax Exempt Contribution
$10,500
Sco Family of Services · Glen Cove, NY · 2022
To further donee's exempt purpose
$10,000
Ajj Scholarship Fund · Speonk, NY · 2025
Tax Exempt Contribution
$10,000
Camp One Step · Chicago, IL · 2025
Tax Exempt Contribution
$10,000
Carmel Connection Foundation · Point Pleasant Beach, NJ · 2025
Tax Exempt Contribution
$10,000
Retreat · East Hampton, NY · 2025
Tax Exempt Contribution
$10,000
Tomorrows Hope Foundation · Rockville Centre, NY · 2025
Tax Exempt Contribution
$10,000
North Sea Maritime Center · Southampton, NY · 2024
Tax Exempt Contribution
$10,000
Road Forward Scholarship Fund · Bridgehampton, NY · 2024
Tax Exempt Contribution
$10,000
Water Mill Community Club · Water Mill, NY · 2024
Tax Exempt Contribution
$10,000
Water Mill Improvements Assoc · Water Mill, NY · 2024
Tax Exempt Contribution
$10,000
Water Mill Museum · Water Mill, NY · 2024
Tax Exempt Contribution
$10,000
Met Pga Foundation · Elmsford, NY · 2022
To further donee's exempt purpose
$9,300
Break Watersailing Club · Sag Harbor, NY · 2025
Tax Exempt Contribution
$8,500
Eleanor Whitmore Early Childhood Ce · East Hampton, NY · 2025
Tax Exempt Contribution
$8,500
Sco Family of Services · Glen Cove, NY · 2023
To further donee's exempt purpose
$8,250
Sco Family of Services · Garden City, NY · 2025
Tax Exempt Contribution
$8,000
Sco Family of Services · Garden City, NY · 2024
Tax Exempt Contribution
$7,500
Met Pga Foundation · Elmsford, NY · 2023
To further donee's exempt purpose
$6,750
Met Pga Foundation · Elmsford, NY · 2024
Tax Exempt Contribution
$5,000
Bergen Highlands Charitable Foundat · Ramsey, NJ · 2025
Tax Exempt Contribution
$5,000
Bridgehampton Lions Club · Bridgehampton, NY · 2025
Tax Exempt Contribution
$5,000
Road Forward Scholarship Fund · Bridgehampton, NY · 2025
Tax Exempt Contribution
$5,000
Camp One Step · Chicago, IL · 2024
Tax Exempt Contribution
$5,000
East Islip Soccer Club · East Islip, NY · 2024
Tax Exempt Contribution
$5,000
Eeda Foundation · Riverhead, NY · 2024
Tax Exempt Contribution
$5,000
Hamptons Community Outreach · Bridgehampton, NY · 2024
Tax Exempt Contribution
$5,000
Leadership Roundtable · Washington, DC · 2024
Tax Exempt Contribution
$5,000
Madonna Heights Sco · Garden City, NY · 2024
Tax Exempt Contribution
$5,000
Retreat · East Hampton, NY · 2024
Tax Exempt Contribution
$5,000
Camp One Step · Chicago, IL · 2023
To further donee's exempt purpose
$5,000
St Francis Hospital Foundation · Roslyn, NY · 2022
To further donee's exempt purpose
$4,000
Frank'S Ms Foundation · Sayville, NY · 2023
To further donee's exempt purpose
$2,500
East Islip Soccer Club · East Islip, NY · 2025
Tax Exempt Contribution
$2,500
Kiwanis Club of Southhampton · Southampton, NY · 2025
Tax Exempt Contribution
$2,500
Larche Long Island · Riverhead, NY · 2025
Tax Exempt Contribution
$2,500
Pan Mass Challenge · Needham Heights, MA · 2025
Tax Exempt Contribution
$2,500
Breakwater Saling Club · Sag Harbor, NY · 2024
Tax Exempt Contribution
$2,500
East Islip Soccer Club · East Islip, NY · 2023
To further donee's exempt purpose
$2,500
Eleanor Whitemore Early Childhood Center · East Hampton, NY · 2023
To further donee's exempt purpose
$2,500
Sag Harbor Lions Club · Sag Harbor, NY · 2023
To further donee's exempt purpose
$2,500
Tomorrow'S Hope Foundation · Uniondale, NY · 2023
To further donee's exempt purpose
$2,500
Bergen Highlands Ramsey Charitable Trust · Ramsey, NJ · 2022
To further donee's exempt purpose
$2,500
Eleanor Whitemore Early Childhood Center · East Hampton, NY · 2022
To further donee's exempt purpose
$2,500
Snack & Friends · New York, NY · 2022
To further donee's exempt purpose
$2,000
Bergen Highlands Charitable Fndt · Ramsey, NJ · 2024
Tax Exempt Contribution
$2,000
Glen Rock Booster Club · Glen Rock, NJ · 2024
Tax Exempt Contribution
$2,000
Kiwanis Club of Southampton Fndt · Southampton, NY · 2024
Tax Exempt Contribution
$2,000
Snack Friends · New York, NY · 2024
Tax Exempt Contribution
$2,000
Snack & Friends · New York, NY · 2023
To further donee's exempt purpose
$1,700
625 Foundation · Rupert, VT · 2025
Tax Exempt Contribution
$1,070
American Cancer Society · Kennesaw, GA · 2022
To further donee's exempt purpose
$1,000
Empire State Ride · Buffalo, NY · 2025
Tax Exempt Contribution
$1,000
Ola of Eastern Long Island · East Hampton, NY · 2025
Tax Exempt Contribution
$1,000
Bridgehampton Lions Club · Bridgehampton, NY · 2024
Tax Exempt Contribution
$1,000
Development Disabilities Institute · Smithtown, NY · 2024
Tax Exempt Contribution
$1,000
Long Island Caddie Scholarship Fdn · Elmsford, NY · 2024
Tax Exempt Contribution
$1,000
Pan Mass Challenge · Needham Heights, MA · 2024
Tax Exempt Contribution
$1,000
Bridgehampton Lions Club · Bridgehampton, NY · 2023
To further donee's exempt purpose
$1,000
St Rita'S Rc Church · Brooklyn, NY · 2022
To further donee's exempt purpose
$500
Guild Hall of East Hampton · East Hampton, NY · 2025
Tax Exempt Contribution
$500
Evelyn Alexander Wildlife Rescue · Hampton Bays, NY · 2024
Tax Exempt Contribution
$500
625 Foundation · Rupert, VT · 2023
To further donee's exempt purpose
$500
Evelyn Alexander Wildlife Rescue · Hampton Bays, NY · 2023
To further donee's exempt purpose
$500
625 Foundation · Rupert, VT · 2022
To further donee's exempt purpose
$500
Bridgehampton Lions Club · Bridgehampton, NY · 2022
To further donee's exempt purpose
$500
Retreat · East Hampton, NY · 2022
To further donee's exempt purpose
$250
Mga Caddie Scholarship Fund · Elmsford, NY · 2025
Tax Exempt Contribution

Who else funds this kind of work

Same state

The Bloomberg Family Foundation815 grants · $3.00B
Pfizer Patient Assistance Foundation134 grants · $5.49B
Gs Donor Advised Philanthropy Fund19,135 grants · $6.79B

Similar purposes

Hess Foundation404 grants · $137.2M
Leon Levy Foundation603 grants · $105.3M
Resnick Foundation711 grants · $160.3M

Similar grant size

Enterprise Holdings Foundation30,880 grants · $360.4M
State Employees Credit Union Foundation7,131 grants · $63.0M
Seattle Foundation14,012 grants · $457.3M

Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.

Search funders like this one

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.