The JMR Effective Giving Foundation
The JMR Effective Giving Foundation is a private foundation, based in Ridgefield, CT. IRS filing data is available from 2023 through 2024. As of 2024, the organization holds $3.4M in total assets. In 2024, it awarded 1 grant totaling $10K. Net investment income was $143K.
The JMR Effective Giving Foundation at a glance
In short: The JMR Effective Giving Foundation gave $10K across 1 grant in 2024 (avg $10K), mostly in California. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $10,000
- Grants made (2024)
- 1
- Average grant
- $10,000
- Median grant
- $10,000
- Total assets
- $3,385,482
- +24.0% vs 2023
- Primary geography
- California (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who The JMR Effective Giving Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was Givewell Aka the Clear Fund ($10K).
Grant Size Distribution
1 grant across all recorded years
The most common grant size was under $50K: 1 grant of 1 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
States
Cities
How The JMR Effective Giving Foundation gives
- In 2024 it paid out 6% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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
In 2024 it made 1 grant totaling $10K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Givewell Aka the Clear Fund Oakland, CA | To support general operating expenses in furtherance of the organization's charitable programs. | $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 | $3,385,482 | $1,518,618 | $26,456 | $10,000 | 1 | $10,000 | $142,784 | $155,935 |
| 2023 | $2,729,254 | $2,729,234 | — | — | — | — | $27,069 | $5,218 |
Under IRS private-foundation payout rules, The JMR Effective Giving Foundation reported a distributable amount of $156K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The JMR Effective Giving Foundation is led by Jason Rotenberg, President & Treasurer on every filing since 2023; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
Jason Rotenberg
President & Treasurer
On filings since 2023
5 hrs/week
No compensation reported
Marisa Rotenberg
Secretary & Treasurer
On filings since 2023
5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2023–2024. "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 JMR Effective Giving Foundation
How much does The JMR Effective Giving Foundation give each year?
The JMR Effective Giving Foundation gave $10K across 1 grant in 2024, according to its 2024 IRS Form 990-PF.
How large is The JMR Effective Giving Foundation?
The JMR Effective Giving Foundation reported $3.4M in total assets on its 2024 IRS Form 990-PF. It paid out $10K in qualifying distributions that year, against a required minimum of $156K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
Where does The JMR Effective Giving Foundation operate?
The JMR Effective Giving Foundation has awarded grants in California.
What is The JMR Effective Giving Foundation's EIN?
The JMR Effective Giving Foundation's EIN (Employer Identification Number) is 93-3986653. IRS Form 990 filing data is available on this page for 2023–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2023–2024
Live grants for the work The JMR Effective Giving Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
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