The Thomas G Stemberg Charitable Foundation is a private foundation established in 2006 and based in Boston, Massachusetts. The foundation operates as a grantmaking organization focused on supporting charitable purposes across multiple sectors.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$6.5M
+1.1% YoY
Annual Giving
$443K
+13.2% YoY
Grant Count
23
-4.2% YoY
Avg Grant Size
$19K
+18.1% YoY
Under IRS private-foundation payout rules, Stemberg Thomas G Char Fnd reported a distributable amount of $405K for 2024 — the minimum it must pay out in qualifying distributions.
Mission & Focus Areas
The foundation supports general charitable purposes with primary funding interests in:
- Education
- Science and STEM education
- Health care
- Philanthropy, voluntarism, and grantmaking
The foundation's giving extends primarily across Massachusetts, New York, and Michigan.
Grantmaking
The foundation made 23 grants in 2023, with total giving of $442,500. Recent notable grants include:
Grant Range
s:**
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Geographic Focus
Where this funder awards grants
The foundation primarily funds organizations in Massachusetts, New York, and Michigan.
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
As of December 2023:
- Total assets: $6,390,591
- Total revenues: $226,550
- Total expenses: $458,748
- Number of employees: 0
As of 2024:
- Total assets: $6,458,555
- Total giving: $442,500
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $6,458,555 | $6,390,591 | $6,622,789 |
| Revenue | $569,748 | $226,550 | $482,998 |
| Expenses | $501,784 | $458,748 | $716,294 |
| Qualifying Distributions | $442,596 | $397,857 | $557,759 |
| Net Investment Income | $511,212 | $166,080 | $422,700 |
| Distributable Amount | $404,904 | $372,339 | $408,397 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
121 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Isabella Stewart Gardner Museum ($210,000), Boston Symphony Orchestra ($50,000), Boston Arts Academy ($25,000).
| Recipient | Purpose | Amount |
|---|---|---|
| BOSTON ARTS ACADEMY BOSTON, MA | GENERAL CHARITABLE PURPOSES | $25,000 |
| BOSTON SYMPHONY ORCHESTRA LENOX, MA | GENERAL CHARITABLE PURPOSES | $50,000 |
| BOYS AND GIRLS CLUB OF BOSTON BOSTON, MA | GENERAL CHARITABLE PURPOSES | $10,000 |
| BREAST CANCER RESEARCH FOUNDATION NEW YORK, NY | GENERAL CHARITABLE PURPOSES | $10,000 |
| BRIGHAM AND WOMEN'S HOSPITAL BOSTON, MA | GENERAL CHARITABLE PURPOSES | $15,000 |
| BROOKLINE MUSIC SCHOOL BROOKLINE, MA | GENERAL CHARITABLE PURPOSES | $2,500 |
| BUZZARDS BAY COALITION NEW BEDFORD, MA | GENERAL CHARITABLE PURPOSES | $1,000 |
| CATHOLIC SCHOOLS FOUNDATION BOSTON, MA | GENERAL CHARITABLE PURPOSES | $5,000 |
| COUTRY CLUB EMPLOYEE EDUCATION FUND INC CHESTNUT HILL, MA | GENERAL CHARITABLE PURPOSES | $15,000 |
| ELLEN GIFFORD CAT SHELTER BRIGHTON, MA | GENERAL CHARITABLE PURPOSES | $1,000 |
Leadership & Key People
Leadership team and compensation from IRS filings
Contact information is maintained through BBH (Brown Brothers Harriman), with Noreen Snow listed as a contact person. The foundation's telephone number is 617-772-1385.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| KATHERINE CHAPMAN STEMBERG | TRUSTEE AS REQUIRED | — | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does Stemberg Thomas G Char Fnd fund?
The foundation supports general charitable purposes with primary funding interests in: • Education • Science and STEM education • Health care • Philanthropy, voluntarism, and grantmaking The foundation's giving extends primarily across Massachusetts, New York, and Michigan.
How do I apply for a grant from Stemberg Thomas G Char Fnd?
**Grant Activity:** The foundation made 23 grants in 2023, with total giving of $442,500. Recent notable grants include: • Isabella Stewart Gardner Museum: $190,000 (2023) • Boston Symphony Orchestra: $55,000 (2023) • Governing Council of the University of Toronto: $15,000 (2023) **Grant Sizes:** Typical awards range from $500 to $317,400.
Where does Stemberg Thomas G Char Fnd make grants?
The foundation primarily funds organizations in Massachusetts, New York, and Michigan.
What size grants does Stemberg Thomas G Char Fnd award?
In 2024, Stemberg Thomas G Char Fnd awarded 23 grants totaling $443K — an average of about $19K per grant, based on its IRS Form 990 filings.
How much is Stemberg Thomas G Char Fnd required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Stemberg Thomas G Char Fnd reported a distributable amount of $405K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Stemberg Thomas G Char Fnd's EIN?
Stemberg Thomas G Char Fnd's EIN (Employer Identification Number) is 20-5672425. IRS Form 990 filing data is available on this page for 2020–2024.
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Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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