The Slater Foundation Inc
The Slater Foundation Inc is a private foundation based in Boynton Beach, Florida. Its 2024 grants supported charitable organizations including a university, hospitals, a military-family support organization, a cultural institution, and community and environmental organizations.
The Slater Foundation Inc at a glance
In short: The Slater Foundation Inc gave $1.1M across 14 grants in 2024 (avg $78K), mostly in Massachusetts. 36% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $1,086,000
- -2.5% vs 2023
- Grants made (2024)
- 14
- -22.2% vs 2023
- Average grant
- $77,571
- +25.4% vs 2023
- Median grant
- $22,500
- Total assets
- $64,352
- -86.6% vs 2023
- New grantees (estimate)
- 36% first-time grantees (5 of 14, 2024; small sample)
- Primary geography
- Massachusetts (59% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to The Slater Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 639 E Ocean Ave Ste 309, Boynton Beach, FL 33435
Phone: (561) 670-2027
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Slater Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Boston University ($250K). Together the top 10 received $1.1M.
Grant Size Distribution
83 grants across all recorded years
The most common grant size was under $50K: 58 grants of 83 (70%).
Geographic Focus
Where this funder awards grants
The 2024 grant dollars were distributed primarily to recipients in Massachusetts (59%), Texas (23%), and Washington, D.C. (14%). Listed recipients also include organizations in New York and McGill University.
Grant Distribution by State
Share of 2024 grant dollars across all 14 itemized grants.
Cities
Is The Slater Foundation Inc open to new grantees?
36%
first-time grantees, 2024
In 2024, 5 of 14 grantees (36%) were first-time recipients. With only 14 grantees, that is a small sample: one grantee more or less moves the share by about 7 points. First grants averaged $60K; repeat grants $87K. How we count
Medians: $50K first-time, $10K repeat.
- 50% of 2024 grantees were also funded in 2023. Method
- Giving held roughly steady from 2021 to 2024 (+1%). Method
- In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $1.1M (2021) to $1.5M (2022). In 2024 it made 14 grants totaling $1.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Boston University Boston, MA | Robert and beverly brown faculty fellow in computing & data sciences | $250,000 |
| Operation Homefront San Antonio, TX | General Support | $250,000 |
| Massachusetts General Hospital Boston, MA | General Support | $210,000 |
| Woodrow Wilson International Center for Scholars Washington, DC | Slater Family Fellowship | $150,000 |
| Temple Emanuel Newton, MA | General Support | $100,000 |
| Spaulding Rehabilitation Hospital Sandwich, MA | Slater Family Endowed Patient Assistance Fund | $50,000 |
| McGill University | Slater Family Canada-US Policy Series | $35,000 |
| Boston Children's Museum Boston, MA | General Support | $10,000 |
| New England Aquarium Boston, MA | General Support | $10,000 |
| The Lenny Zakim Fund Boston, MA | General Support | $10,000 |
Ready to take the next step with The Slater Foundation Inc?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $64,352 | $676,281 | $1,091,830 | $1,086,000 | 14 | $1,090,166 | $19,617 | $9,543 |
| 2023 | $479,901 | $160,976 | $1,342,556 | $1,113,700 | 18 | $1,327,380 | $154,092 | $37,068 |
| 2022 | $1,661,481 | $465,696 | $1,504,989 | $1,477,000 | 15 | $1,477,000 | $56,580 | $48,042 |
| 2021 | $2,700,774 | $102,654 | $1,085,220 | $1,075,000 | 15 | $1,075,000 | $97,260 | $29,931 |
| 2020 | $3,683,340 | $57,833 | $1,405,665 | $1,394,500 | 21 | — | $89,072 | $38,812 |
Under IRS private-foundation payout rules, The Slater Foundation Inc reported a distributable amount of $10K for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2024 grants show support for a range of organizations. For example, Operation Homefront describes its mission as building strong, stable, and secure military families; The Lenny Zakim Fund describes its work as advancing social justice and supporting grassroots organizations in eastern Massachusetts; and the New England Aquarium describes its work in public engagement, education, marine conservation, research, and ocean advocacy.
Grantmaking
In filing year 2024, the foundation reported 14 grants totaling $1,086,000. Grant amounts ranged from $500 to $250,000, with a median grant of $22,500. Larger awards included $250,000 to Boston University for the Robert and Beverly Brown Faculty Fellow in Computing & Data Sciences, $250,000 to Operation Homefront for general support, $210,000 to Massachusetts General Hospital for general support, and $150,000 to the Woodrow Wilson International Center for Scholars for the Slater Family Fellowship. Other grants included $100,000 to Temple Emanuel for general support and $50,000 to Spaulding Rehabilitation Hospital for the Slater Family Endowed Patient Assistance Fund.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Kenneth Z. Slater as president and director, Samuel H. Slater as vice-president, and Richard J. Slater, Jacqueline Slater Whitten, and Amy Dittami as directors.
The Slater Foundation Inc is led by Kenneth Z. Slater, President & Director on every filing since 2020; none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
Kenneth Z. Slater
President & Director
On filings since 2020
1 hr/week
No compensation reported
Richard J. Slater
Director
On filings since 2020
1 hr/week
No compensation reported
Amy Dittami
Director
On filings since 2021
1 hr/week
No compensation reported
Jacqueline Slater Whitten
Director
On filings since 2021
1 hr/week
No compensation reported
Samuel H. Slater
Vice President
On filings since 2020
12 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 The Slater Foundation Inc
How much does The Slater Foundation Inc give each year?
The Slater Foundation Inc gave $1.1M across 14 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $1.1M across 18 grants.
What is The Slater Foundation Inc's typical grant size?
The Slater Foundation Inc's median grant in 2024 was $22,500, and its average grant was $77,571, across 14 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from The Slater Foundation Inc that year got $60K on average.
Where does The Slater Foundation Inc give grants?
The Slater Foundation Inc gives mostly in Massachusetts: 59% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Texas (23%) and District of Columbia (14%). The most frequent recipient cities were Boston, MA (5 grants).
Does The Slater Foundation Inc give general operating support?
Yes: 71% of The Slater Foundation Inc's 2024 grants with a stated purpose (10 of 14) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are The Slater Foundation Inc's largest grantees?
The Slater Foundation Inc's largest 2024 grantees include Boston University ($250,000), Operation Homefront ($250,000) and Massachusetts General Hospital ($210,000), according to its 2024 IRS Form 990-PF. Together they received 65% of its itemized 2024 grant dollars.
How large is The Slater Foundation Inc?
The Slater Foundation Inc reported $64K in total assets on its 2024 IRS Form 990-PF. It paid out $1.1M in qualifying distributions that year, against a required minimum of $10K (roughly 5% of its investment assets).
What does The Slater Foundation Inc fund?
No mission statement for the foundation is provided. Its 2024 grants show support for a range of organizations. See mission & focus areas ↑
How do I apply for a grant from The Slater Foundation Inc?
The foundation 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 ↑
What is The Slater Foundation Inc's EIN?
The Slater Foundation Inc's EIN (Employer Identification Number) is 31-1582513. IRS Form 990 filing data is available on this page for 2020–2024.
Does The Slater Foundation Inc 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 September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Live grants for the work The Slater Foundation Inc funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
- Nixa Affiliate Grantmaking Program Up to US $10,000 · Due October 19, 2026
- Community and School Grants $28,000 total pool; 10-15 grants expected · Due October 19, 2026
- Mary Pinola/Crescenta Valley Chamber Education Fund $500 - $5,000 for ongoing programs; up to $15,000 for Strategic Initiative Grants · Due October 19, 2026
Explore Open Grants
Browse active grant opportunities in The Slater Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). The Slater Foundation Inc funder profile. GrantGraph. Retrieved October 19, 2026, from https://grantable.co/funders/the-slater-foundation-inc-morg_164ca0976c0543228bcf803dc5ffa774
BibTeX
@misc{grantable_311582513_2026,
author = {{Grantable}},
title = {{The Slater Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-slater-foundation-inc-morg_164ca0976c0543228bcf803dc5ffa774},
note = {Accessed 2026-10-19. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from The Slater Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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