Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC is a private foundation, based in Palm Beach, FL. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $327.1M in total assets. In 2024, it awarded 5 grants totaling $573K. Net investment income was $9.1M.
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC at a glance
In short: Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC gave $573K across 5 grants in 2024 (avg $115K), top state Massachusetts. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $573,250
- +51.1% vs 2023
- Grants made (2024)
- 5
- +25.0% vs 2023
- Average grant
- $114,650
- +20.8% vs 2023
- Median grant
- $100,000
- Total assets
- $327,093,230
- +2.6% vs 2023
- Primary geography
- Massachusetts (45% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
Who Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2024
The largest 2024 recipient was Island Housing Trust ($250K). Together the top 5 received $573K.
Grant Size Distribution
17 grants across all recorded years
The most common grant size was in the $50–100K range: 7 grants of 17 (41%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 5 itemized grants.
Cities
How Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC gives
- Giving grew 4069% from 2021 to 2024. Method
- In 2024 it paid out 107% of 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 2024, annual grant giving ranged from $14K (2021) to $573K (2024). In 2024 it made 5 grants totaling $573K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Island Housing Trust West Tisbury, MA | General Operational Support | $250,000 |
| 60 Decibals Inc New York, NY | General Operational Support | $130,000 |
| Global Partnerships Seattle, WA | General Operational Support | $100,000 |
| MCE Social Capital San Francisco, CA | General Operational Support | $83,250 |
| University of Massachusetts Amherst Foundation Amherst, MA | General Operational Support | $10,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $327,093,230 | $12,174,450 | $3,777,630 | $573,250 | 5 | $26,839,688 | $9,145,240 | $25,107,819 |
| 2023 | $318,692,925 | $8,888,921 | $3,217,145 | $379,500 | 4 | $27,680,115 | $6,674,857 | $24,055,561 |
| 2022 | $312,514,492 | $178,857,843 | $2,297,021 | $141,266 | 3 | $18,218,893 | $5,314,063 | $23,551,717 |
| 2021 | $138,529,723 | $7,463,225 | $326,587 | $13,750 | 1 | $10,935,894 | $6,853,665 | $17,378,820 |
| 2020 | $131,433,271 | $6,021,238 | $559,927 | $202,538 | 4 | — | $4,609,627 | $11,522,026 |
Under IRS private-foundation payout rules, Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC reported a distributable amount of $25.1M for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC is led by Diane S. Isenberg, Director & President on every filing since 2020; none of the 6 officers listed in 2024 report compensation.
Officers on the 2024 filing
Diane S. Isenberg
Director & President
On filings since 2020
0.2 hrs/week
No compensation reported
Greg Neichin
Director & Vice President
On filings since 2020
1 hr/week
No compensation reported
Robert Dumont
Director
On filings since 2020
0.2 hrs/week
No compensation reported
Rose Evangelista
Director & Secretary
On filings since 2020
0.2 hrs/week
No compensation reported
Stefan Freeman
Director
On filings since 2020
0.2 hrs/week
No compensation reported
Jennifer R. Einziger
Treasurer
On filings since 2020
0.2 hrs/week
No compensation reported
Former officers (1)
- Former: David Freeman (2020–2022) — Director
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 Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC
How much does Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC give each year?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC gave $573K across 5 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $380K across 4 grants.
What is Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's typical grant size?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's median grant in 2024 was $100,000, and its average grant was $114,650, across 5 grants on its 2024 IRS Form 990-PF.
Where does Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC give grants?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's top state is Massachusetts, with 45% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were New York (23%) and Washington (17%).
Does Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC give general operating support?
Yes: 100% of Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's 2024 grants with a stated purpose (5 of 5) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's largest grantees?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's largest 2024 grantees include Island Housing Trust ($250,000), 60 Decibals Inc ($130,000) and Global Partnerships ($100,000), according to its 2024 IRS Form 990-PF. Together they received 84% of its itemized 2024 grant dollars.
How large is Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC reported $327.1M in total assets on its 2024 IRS Form 990-PF. It paid out $26.8M in qualifying distributions that year, against a required minimum of $25.1M (roughly 5% of its investment assets).
What is Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's EIN?
Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC's EIN (Employer Identification Number) is 46-3176081. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 15, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 14, 2023)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 1, 2025)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 17, 2025)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Isenberg Family Charitable Foundation Inc C/O Ceniarth LLC funds
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