Turning Leaf Foundation Inc
Turning Leaf Foundation Inc is a private foundation focused on Education, based in Natick, MA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $15.2M in total assets. In 2025, it awarded 7 grants totaling $758K. Net investment income was $518K.
Turning Leaf Foundation Inc at a glance
In short: Turning Leaf Foundation Inc gave $758K across 7 grants in 2025 (avg $108K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $757,946
- +41.1% vs 2024
- Grants made (2025)
- 7
- +16.7% vs 2024
- Average grant
- $108,278
- +21.0% vs 2024
- Median grant
- $100,000
- Total assets
- $15,234,857
- -0.1% vs 2024
- Primary geography
- Massachusetts (93% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Turning Leaf Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 7 recipients in 2025
The largest 2025 recipient was Massachusetts General Juvenile Batten Disease Reseach ($253K). Together the top 7 received $758K.
Grant Size Distribution
21 grants across all recorded years
The most common grant size was in the $100–250K range: 10 grants of 21 (48%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 7 itemized grants.
States
Cities
How Turning Leaf Foundation Inc gives
- Giving grew 1526% from 2022 to 2025. Method
- In 2025 it paid out 88% 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
From 2020 to 2025, annual grant giving ranged from $47K (2022) to $758K (2025). In 2025 it made 7 grants totaling $758K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Massachusetts General Juvenile Batten Disease Reseach Boston, MA | Medical Research | $252,831 |
| Pioneer Institute Boston, MA | Education | $105,000 |
| Nantucket Atheneum Nantucket, MA | Education | $100,000 |
| Pioneer Public Interest Law Center Boston, MA | Donated Legal Assistance | $100,000 |
| Beth Israel Deaconess Medical Center Boston, MA | Medical Research | $100,000 |
| Alakra Ltd - Tanzania (Address Information Available Upon Request) Cambridge, MA | Education | $50,115 |
| Room to Read San Francisco, CA | Education | $50,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $15,234,857 | $794,400 | $815,733 | $757,946 | 7 | $757,946 | $517,955 | $859,730 |
| 2024 | $15,256,190 | $3,892,957 | $583,012 | $537,071 | 6 | $537,071 | $3,508,646 | $627,287 |
| 2023 | $11,946,245 | $345,037 | $220,065 | $118,000 | 2 | $118,000 | $2,289,909 | $539,979 |
| 2022 | $11,821,273 | $9,564,403 | $54,819 | $46,606 | 2 | $46,606 | $6,896,937 | $263,172 |
| 2021 | $2,311,689 | $1,528,723 | $201,726 | $199,965 | 4 | $199,965 | $361,818 | $86,411 |
| 2020 | $984,692 | $189,083 | $95,260 | $94,189 | 3 | — | $4,273 | $42,380 |
Under IRS private-foundation payout rules, Turning Leaf Foundation Inc reported a distributable amount of $860K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Turning Leaf Foundation Inc is led by Michael J. Jacobson, President, Secretary & Director on every filing since 2020; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Michael J. Jacobson
President, Secretary & Director
On filings since 2020
No compensation reported
Joseph C. Jacobson
Director
On filings since 2020
No compensation reported
Nancy L. Jacobson
Treasurer & Director
On filings since 2020
No compensation reported
Thomas M. Vaubel
Director
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 Turning Leaf Foundation Inc
How much does Turning Leaf Foundation Inc give each year?
Turning Leaf Foundation Inc gave $758K across 7 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $537K across 6 grants.
What is Turning Leaf Foundation Inc's typical grant size?
Turning Leaf Foundation Inc's median grant in 2025 was $100,000, and its average grant was $108,278, across 7 grants on its 2025 IRS Form 990-PF.
Where does Turning Leaf Foundation Inc give grants?
Turning Leaf Foundation Inc gives mostly in Massachusetts: 93% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was California (7%). The most frequent recipient cities were Boston, MA (4 grants).
Does Turning Leaf Foundation Inc give general operating support?
Not in 2025: none of the 7 grants with a stated purpose on Turning Leaf Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Education" (4 grants).
Who are Turning Leaf Foundation Inc's largest grantees?
Turning Leaf Foundation Inc's largest 2025 grantees include Massachusetts General Juvenile Batten Disease Reseach ($252,831), Pioneer Institute ($105,000) and Nantucket Atheneum ($100,000), according to its 2025 IRS Form 990-PF. Together they received 60% of its itemized 2025 grant dollars.
How large is Turning Leaf Foundation Inc?
Turning Leaf Foundation Inc reported $15.2M in total assets on its 2025 IRS Form 990-PF. It paid out $758K in qualifying distributions that year, against a required minimum of $860K (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.
What is Turning Leaf Foundation Inc?
Turning Leaf Foundation Inc is a private foundation focused on Education, based in Natick, MA. It holds $15.2M in total assets as of 2025.
What is Turning Leaf Foundation Inc's EIN?
Turning Leaf Foundation Inc's EIN (Employer Identification Number) is 04-3397818. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 15, 2026)
- IRS filings on file for fiscal years 2020–2024
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