Janet & Robert W Postma Foundation
Janet & Robert W Postma Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Water Mill, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.9M in total assets. In 2024, it awarded 31 grants totaling $422K.
Key facts about Janet & Robert W Postma Foundation
- EIN
- 85-3636639
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $422,250
- Grants made (2024)
- 31
- Average grant
- $13,621
- Median grant
- $5,000
- New grantees (estimate)
- 68% first-time grantees (21 of 31, 2024)
- Total assets
- $4,911,738
- Primary geography
- New York (87% of itemized 2024 grant dollars)
Data from IRS Form 990-PF, 2024; updated April 2026. New grantees are estimated by matching recipient names across years (methodology).
Who Janet & Robert W Postma Foundation funds
By grant dollars, the top recipient states for Janet & Robert W Postma Foundation's 31 itemized 2024 grants were New York (87%) and Pennsylvania (6%). The most frequent recipient cities were Southampton, NY (3 grants), New York, NY (3 grants), Water Mill, NY (3 grants) and Bridgehampton, NY (3 grants). None of its 31 grants with a stated purpose were described as general or operating support. Recurring purposes include "Tax Exempt Contribution" (31 grants).
Is Janet & Robert W Postma Foundation open to new grantees?
68%
first-time grantees, 2024
In 2024, 21 of 31 grantees (68%) were first-time recipients. First grants averaged $9K; repeat grants $23K. How we count
Medians: $5K first-time, $6K repeat.
- 26% of 2024 grantees were also funded in 2023. Method
- Giving grew 182% from 2021 to 2024. Method
- In 2024 it paid out 94% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized IRS Form 990-PF grant lists (2021–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Next steps with Janet & Robert W Postma Foundation
- How to evaluate Janet & Robert W Postma Foundation as a funder
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Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$4.9M
-17.8% YoY
Annual Giving
$422K
+318.1% YoY
Grant Count
31
+106.7% YoY
Avg Grant Size
$14K
+102.3% YoY
Under IRS private-foundation payout rules, Janet & Robert W Postma Foundation reported a distributable amount of $500K for 2024 — the minimum it must pay out in qualifying distributions.
About Janet & Robert W Postma Foundation
Based on IRS filings
Janet & Robert W Postma Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Water Mill, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.9M in total assets. In 2024, it awarded 31 grants totaling $422K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 31 itemized 2024 grant dollars.
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $4,911,738 | $5,975,412 | $6,119,368 |
| Revenue | $-593,380 | $-38,360 | $1,098 |
| Expenses | $470,294 | $105,596 | $158,844 |
| Qualifying Distributions | $468,450 | $103,557 | $134,790 |
| Net Investment Income | — | — | — |
| Distributable Amount | $499,906 | $285,656 | $243,698 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
74 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest recipients include Southampton Hospital Foundation ($150,000), Myriad USA ($50,000), St Francis Hospital Foundation ($27,500).
| Recipient | Purpose | Amount |
|---|---|---|
| Southampton Hospital Foundation Southampton, NY | Tax Exempt Contribution | $150,000 |
| Myriad USA New York, NY | Tax Exempt Contribution | $50,000 |
| St Francis Hospital Foundation Roslyn, NY | Tax Exempt Contribution | $27,500 |
| CMTA Glenolden, PA | Tax Exempt Contribution | $25,000 |
| Ichan Schoold of Medicine New York, NY | Tax Exempt Contribution | $20,000 |
| Sag Harbor Lions Club Pierson Schol Sag Harbor, NY | Tax Exempt Contribution | $20,000 |
| Carmel Connection Foundation Point Pleasant Beach, NJ | Tax Exempt Contribution | $15,000 |
| North Sea Maritime Center Southampton, NY | Tax Exempt Contribution | $10,000 |
| Road Forward Scholarship Fund Bridgehampton, NY | Tax Exempt Contribution | $10,000 |
| Water Mill Community Club Water Mill, NY | Tax Exempt Contribution | $10,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
No officer or director reported compensation in the available filings.
From 2024 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Robert W Postma | President | 1 | — |
| Janet Whalen | VP Secretary Treasurer | 1 | — |
| Kristen Slaoui | Director | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Janet & Robert W Postma Foundation?
Janet & Robert W Postma Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Water Mill, NY. It holds $4.9M in total assets as of 2024.
How large is Janet & Robert W Postma Foundation?
As of 2024, Janet & Robert W Postma Foundation holds $4.9M in total assets with $-593,380 in annual revenue. It awarded 31 grants totaling $422K in 2024.
Where does Janet & Robert W Postma Foundation operate?
Janet & Robert W Postma Foundation has awarded grants in District of Columbia, Georgia, Illinois, Massachusetts, New Jersey, New York, Pennsylvania, Vermont.
What size grants does Janet & Robert W Postma Foundation award?
In 2024, Janet & Robert W Postma Foundation awarded 31 grants totaling $422K — an average of about $14K per grant, based on its IRS Form 990 filings.
How much is Janet & Robert W Postma Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Janet & Robert W Postma Foundation reported a distributable amount of $500K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Janet & Robert W Postma Foundation's EIN?
Janet & Robert W Postma Foundation's EIN (Employer Identification Number) is 85-3636639. IRS Form 990 filing data is available on this page for 2020–2024.
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.