Randall and Mary Hack Foundation
The Randall and Mary Hack Foundation is a private foundation based in Greenwich, Connecticut. Its 2023 filing is marked as a final return, so the foundation appears to have wound down or stopped grantmaking.
Randall and Mary Hack Foundation at a glance
In short: Randall and Mary Hack Foundation gave $975K across 7 grants in 2023 (avg $139K), mostly in New Jersey. Source: 2023 IRS Form 990-PF.
- Annual giving (2023)
- $974,889
- +127.2% vs 2022
- Grants made (2023)
- 7
- -87.3% vs 2022
- Average grant
- $139,270
- +1685.1% vs 2022
- Median grant
- $78,750
- Primary geography
- New Jersey (59% of itemized 2023 grant dollars)
- Latest 990 filing
- Form 990-PF, 2023 View filing
Data from IRS Form 990-PF, 2023; updated October 2026.
How to apply to Randall and Mary Hack Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 238 Byram Shore Rd, Greenwich, CT 06830-6932
Phone: (203) 681-2494
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Randall and Mary Hack Foundation funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2023
The largest 2023 recipient was Climate Central Inc ($579K across 2 grants). Together the top 5 received $975K.
Grant Size Distribution
174 grants across all recorded years
The most common grant size was under $50K: 159 grants of 174 (91%).
Geographic Focus
Where this funder awards grants
In 2023, 59% of grant dollars went to recipients in New Jersey, 35% to recipients in New York, and 6% to recipients in Connecticut.
Grant Distribution by State
Share of 2023 grant dollars across all 7 itemized grants.
States
Cities
How Randall and Mary Hack Foundation gives
- Giving grew 87% from 2020 to 2023. Method
- In 2023 it paid out well above its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2023, annual grant giving ranged from $429K (2022) to $975K (2023). In 2023 it made 7 grants totaling $975K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Climate Central Inc Princeton, NJ | Flood Vision Program | $500,000 |
| Goldman Sachs Philanthropy Fund Albany, NY | General | $236,639 |
| New York Presbyterian Fund New York, NY | General | $100,000 |
| Climate Central Inc Princeton, NJ | General | $78,750 |
| Parkinson's Mind & Body Inc Greenwich, CT | General | $50,000 |
| Parkinson's Mind & Body Inc Greenwich, CT | General | $7,500 |
| Americares Foundation Stamford, CT | General | $2,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2023 | — | $22,948 | $977,789 | $974,889 | 7 | $976,339 | $18,598 | $19,930 |
| 2022 | $954,841 | $-6,675 | $431,850 | $429,100 | 55 | $430,475 | $21,850 | $64,794 |
| 2021 | $1,393,367 | $1,184,093 | $666,016 | $663,466 | 55 | $664,741 | $6,961 | $63,496 |
| 2020 | $875,290 | $8,378 | $523,750 | $521,300 | 57 | — | $4,703 | $56,763 |
Under IRS private-foundation payout rules, Randall and Mary Hack Foundation reported a distributable amount of $20K for 2023 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
The foundation’s filing does not state a mission or specific focus areas. Among its 2023 grantees, Climate Central describes its own work as researching and reporting on climate change and its impacts and solutions, and informing the public and decision makers about its findings.
Grantmaking
In 2023, the foundation reported seven grants totaling $974,889. Grant amounts ranged from $2,000 to $500,000, with a median of $78,750.
The largest grants included $500,000 to Climate Central for its Flood Vision Program, $236,639 to Goldman Sachs Philanthropy Fund for general purposes, and $100,000 to New York Presbyterian Fund for general purposes. Other grants included $78,750 to Climate Central, $57,500 total to Parkinson’s Mind & Body, and $2,000 to Americares Foundation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2023 filing lists Randall A. Hack, Mary A. Hack, Tobin Ayres Hack, and Randall A. Hack Jr. as trustees. David Stoll was listed as a trustee from January 1 through April 30, 2023.
Randall and Mary Hack Foundation's 2023 filing lists 5 officers; none of the 5 officers listed in 2023 report compensation.
Officers on the 2023 filing
David Stoll
Trustee
On filings since 2020
0.1 hrs/week
No compensation reported
Mary A. Hack
Trustee
On filings since 2020
0.5 hrs/week
No compensation reported
Randall A. Hack
Trustee
On filings since 2020
0.5 hrs/week
No compensation reported
Randall A. Hack Jr.
Trustee
On filings since 2020
0.5 hrs/week
No compensation reported
Tobin Ayres Hack
Trustee
On filings since 2020
0.5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2023. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Randall and Mary Hack Foundation
How much does Randall and Mary Hack Foundation give each year?
Randall and Mary Hack Foundation gave $975K across 7 grants in 2023, according to its 2023 IRS Form 990-PF. In 2022 it gave $429K across 55 grants.
What is Randall and Mary Hack Foundation's typical grant size?
Randall and Mary Hack Foundation's median grant in 2023 was $78,750, and its average grant was $139,270, across 7 grants on its 2023 IRS Form 990-PF.
Where does Randall and Mary Hack Foundation give grants?
Randall and Mary Hack Foundation gives mostly in New Jersey: 59% of the grant dollars itemized on its 2023 IRS Form 990-PF went to recipients there. The next largest states were New York (35%) and Connecticut (6%). The most frequent recipient cities were Princeton, NJ (2 grants) and Greenwich, CT (2 grants).
Does Randall and Mary Hack Foundation give general operating support?
Yes: 86% of Randall and Mary Hack Foundation's 2023 grants with a stated purpose (6 of 7) were for general or operating support, per its 2023 IRS Form 990-PF.
Who are Randall and Mary Hack Foundation's largest grantees?
Randall and Mary Hack Foundation's largest 2023 grantees include Climate Central Inc ($578,750 across 2 grants), Goldman Sachs Philanthropy Fund ($236,639) and New York Presbyterian Fund ($100,000), according to its 2023 IRS Form 990-PF. Together they received 94% of its itemized 2023 grant dollars.
What does Randall and Mary Hack Foundation fund?
The foundation’s filing does not state a mission or specific focus areas. Among its 2023 grantees, Climate Central describes its own work as researching and reporting on climate change and its impacts and solutions, and informing the public and decision makers about its findings. See mission & focus areas ↑
How do I apply for a grant from Randall and Mary Hack Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
How much is Randall and Mary Hack Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2023, Randall and Mary Hack Foundation reported a distributable amount of $20K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Randall and Mary Hack Foundation's EIN?
Randall and Mary Hack Foundation's EIN (Employer Identification Number) is 06-1810820. IRS Form 990 filing data is available on this page for 2020–2023.
Does Randall and Mary Hack Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2023
Live grants for the work Randall and Mary Hack Foundation funds
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