The Stemberg Thomas G Charitable Foundation concentrates its giving on major cultural institutions in Boston, focusing on supporting visual arts and classical music through substantial, unrestricted grants. Its limited portfolio indicates a preference for a small number of high-value awards to well-established local arts organizations.
Highly concentrated giving: few, large grants focused on repeat, established local arts institutions; funds are often designated for general charitable purposes rather than specific programs.
Stemberg Thomas G Char Fnd Attn Noreen Snow Bbh’s grantmaking is anchored by sizable support for Boston’s cultural institutions, especially the Isabella Stewart Gardner Museum and the Boston Symphony Orchestra. In the most recent grant list, the foundation gave $210,000 to the Gardner Museum in 2025 and $190,000 in 2024, alongside $50,000 in 2025 and $55,000 in 2024 to the Boston Symphony Orchestra. That pattern points to a funder that makes repeated, high-value awards to a small set of organizations rather than spreading gifts broadly. The foundation also extends general charitable-purpose support to a mix of arts, education, health, and community nonprofits. Boston Arts Academy received $25,000 in both 2024 and 2025, while Massachusetts General Hospital was awarded $25,000 in 2024 and $15,000 in 2025. Other named recipients include The Boston Foundation, Harvard, and the Emerald Necklace Conservancy. Most gifts are unrestricted or broadly designated as general charitable purposes, which suggests flexible support for institutional needs rather than project-specific funding.
Visual arts and classical music are the clearest themes in the portfolio. The foundation gave $210,000 in 2025 to the Isabella Stewart Gardner Museum and $50,000 in 2025 to the Boston Symphony Orchestra, both as general charitable purposes. Those awards sit alongside another repeated arts investment: Boston Arts Academy received $25,000 in 2024 and $25,000 in 2025. Beyond the arts, the foundation funded education, health, and community-serving organizations. Examples include $25,000 to Massachusetts General Hospital in 2024 and $15,000 in 2025, $10,000 to Boys and Girls Club of Boston in 2025, and $9,000 to Perkins School for the Blind in 2025. It also supported Catholic Schools Foundation with $10,000 in 2024 and $5,000 in 2025, showing recurring attention to education-related nonprofits.
Typical grants are small to mid-sized, with a p25 of $1,000, median of $2,500, and p75 of $10,000. The recent list also shows a few much larger awards, which lift the overall annual total. Giving is repeated over multiple years to several recipients, including the Isabella Stewart Gardner Museum, Boston Symphony Orchestra, Boston Arts Academy, Massachusetts General Hospital, Boys and Girls Club of Boston, Catholic Schools Foundation, The Boston Foundation, and University of Toronto. The foundation appears to be a private charitable foundation making broad-purpose grants, and the listed gifts are overwhelmingly unrestricted or for general charitable purposes.
$443K
$6.5M
$570K
$502K
Most grants fall between $1K and $10K, with a median of $3K.
25th Percentile
$1K
Median
$3K
75th Percentile
$10K
Top 2 recipient countries by grant volume for Stemberg Thomas G Char Fnd Attn Noreen Snow Bbh.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 73 | $1.3M | 96.0% |
| 2 |
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Notable grantees: Isabella Stewart Gardner Museum, Boston Symphony Orchestra
Giving is highly concentrated in Massachusetts: 87% of grants go to recipients in the HQ state, and Massachusetts is also the top state by grant count. Boston is the main recipient city, with multiple awards to organizations there, including the Isabella Stewart Gardner Museum, Boston Arts Academy, Massachusetts General Hospital, The Boston Foundation, and Planned Parenthood League of MA. Outside Massachusetts, the foundation’s grants reach New York, Michigan, and Toronto, with two grants each to Canada through the University of Toronto and one-off awards to other out-of-state recipients.
The clearest pattern is support for cultural institutions, especially visual arts and classical music organizations in Boston. The recent grants list also includes education, health, and community-serving nonprofits such as Boston Arts Academy, Massachusetts General Hospital, Boys and Girls Club of Boston, and Perkins School for the Blind.
The foundation’s typical grant size is modest relative to its largest awards: p25 is $1,000, median is $2,500, and p75 is $10,000. The recent list also includes a few much larger grants, including $210,000 and $190,000 awards.
Yes. Multiple recipients appear in both 2024 and 2025, including the Isabella Stewart Gardner Museum, Boston Symphony Orchestra, Boston Arts Academy, Massachusetts General Hospital, Boys and Girls Club of Boston, Catholic Schools Foundation, The Boston Foundation, and University of Toronto.
Its grantmaking is concentrated in Massachusetts, which is both the top state by grant count and the destination for 87% of grants. Boston receives many of those awards, but the list also reaches other places such as Lenox, Cambridge, Watertown, Chestnut Hill, Danvers, and Brookline.
2025
Source: IRS Form 990-PF, fiscal year 2025.
| 3 |
| $46K |
4.0% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| ISABELLA STEWART GARDNER MUSEUM | BOSTON, MA | $210,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BOSTON SYMPHONY ORCHESTRA | LENOX, MA | $50,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BOSTON ARTS ACADEMY | BOSTON, MA | $25,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| THE BOSTON FOUNDATION | BOSTON, MA | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| PRESIDENT AND FELLOWS OF HARVARD | CAMBRIDGE, MA | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| UNIVERSITY OF TORONTO | TORONTO, ON | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| MASSACHUSETTS GENERAL HOSPITAL | BOSTON, MA | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BRIGHAM AND WOMEN'S HOSPITAL | BOSTON, MA | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| COUTRY CLUB EMPLOYEE EDUCATION FUND INC | CHESTNUT HILL, MA | $15,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| FUSION ACADEMY | GRAND RAPIDS, MI | $10,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BREAST CANCER RESEARCH FOUNDATION | NEW YORK, NY | $10,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BOYS AND GIRLS CLUB OF BOSTON | BOSTON, MA | $10,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| THE EMERALD NECKLACE CONSERVANCY | BOSTON, MA | $10,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| PERKINS SCHOOL FOR THE BLIND | WATERTOWN, MA | $9,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| CATHOLIC SCHOOLS FOUNDATION | BOSTON, MA | $5,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| FRANCIS OUIMET SCHOLARSHIP FUND | NORTON, MA | $2,500 | 2025 | GENERAL CHARITABLE PURPOSES |
| PLANNED PARENTHOOD LEAGUE OF MA | BOSTON, MA | $2,500 | 2025 | GENERAL CHARITABLE PURPOSES |
| STEPS TO SUCCESS INC | BROOKLINE, MA | $2,500 | 2025 | GENERAL CHARITABLE PURPOSES |
| BROOKLINE MUSIC SCHOOL | BROOKLINE, MA | $2,500 | 2025 | GENERAL CHARITABLE PURPOSES |
| ELLEN GIFFORD CAT SHELTER | BRIGHTON, MA | $1,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| THE CARROLL SCHOOL | LINCOLN, MA | $1,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| BUZZARDS BAY COALITION | NEW BEDFORD, MA | $1,000 | 2025 | GENERAL CHARITABLE PURPOSES |
| OUR SISTERS SCHOOL | NEW BEDFORD, MA | $500 | 2025 | GENERAL CHARITABLE PURPOSES |
| ISABELLA STEWART GARDNER MUSEUM | BOSTON, MA | $190,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BOSTON SYMPHONY ORCHESTRA | LENOX, MA | $55,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BOSTON ARTS ACADEMY | BOSTON, MA | $25,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| MASSACHUSETTS GENERAL HOSPITAL | BOSTON, MA | $25,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| UNIVERSITY OF TORONTO | TORONTO, ON | $15,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| FUSION ACADEMY ANNUAL FUND | GRAND RAPIDS, MI | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| CATHOLIC SCHOOLS FOUNDATION | BOSTON, MA | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| NORTHEAST ARC INC | DANVERS, MA | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BREAST CANCER RESEARCH FOUNDATION | NEW YORK, NY | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| CHAPEL AND YORK US FOUNDATION INC | NEW YORK, NY | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BOYS AND GIRLS CLUB OF BOSTON | BOSTON, MA | $10,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BRIGHAM AND WOMEN'S HOSPITAL | BOSTON, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| PLANNED PARENTHOOD LEAGUE OF MA | BOSTON, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| BROOKLINE MUSIC SCHOOL | BROOKLINE, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| BROOKLINE FOOD PANTRY | BROOKLINE, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| THE BOSTON FOUNDATION | BOSTON, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| FRANCIS OUIMET SCHOLARSHIP FUND | NORTON, MA | $2,500 | 2024 | GENERAL CHARITABLE PURPOSES |
| THE EMERALD NECKLACE CONSERVANCY | BOSTON, MA | $1,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| THE CARROLL SCHOOL | LINCOLN, MA | $1,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| BUZZARDS BAY COALITION | NEW BEDFORD, MA | $1,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| STEPS TO SUCCESS INC | BROOKLINE, MA | $1,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| PRESIDENT AND FELLOWS OF HARVARD | CAMBRIDGE, MA | $1,000 | 2024 | GENERAL CHARITABLE PURPOSES |
| ELLEN GIFFORD CAT SHELTER | BRIGHTON, MA | $500 | 2024 | GENERAL CHARITABLE PURPOSES |
| OUR SISTERS SCHOOL | NEW BEDFORD, MA | $500 | 2024 | GENERAL CHARITABLE PURPOSES |
| ISABELLA STEWART GARDNER MUSEUM | BOSTON, MA | $317,400 | 2023 | GENERAL CHARITABLE PURPOSES |
| THE BOSTON FOUNDATION | BOSTON, MA | $27,500 | 2023 | GENERAL CHARITABLE PURPOSES |
| PERKINS SCHOOL FOR THE BLIND | WATERTOWN, MA | $25,000 | 2023 | GENERAL CHARITABLE PURPOSES |
BOSTON SYMPHONY ORCHESTRA
$50,000GENERAL CHARITABLE PURPOSES
BOSTON ARTS ACADEMY
$25,000GENERAL CHARITABLE PURPOSES
UNIVERSITY OF TORONTO
GENERAL CHARITABLE PURPOSES
MASSACHUSETTS GENERAL HOSPITAL
$15,000GENERAL CHARITABLE PURPOSES
BRIGHAM AND WOMEN'S HOSPITAL
$15,000GENERAL CHARITABLE PURPOSES
COUTRY CLUB EMPLOYEE EDUCATION FUND INC
$15,000GENERAL CHARITABLE PURPOSES
FUSION ACADEMY
$10,000GENERAL CHARITABLE PURPOSES
PERKINS SCHOOL FOR THE BLIND
$9,000GENERAL CHARITABLE PURPOSES
PLANNED PARENTHOOD LEAGUE OF MA
$2,500GENERAL CHARITABLE PURPOSES
STEPS TO SUCCESS INC
$2,500GENERAL CHARITABLE PURPOSES
BROOKLINE MUSIC SCHOOL
$2,500GENERAL CHARITABLE PURPOSES
ELLEN GIFFORD CAT SHELTER
$1,000GENERAL CHARITABLE PURPOSES
THE CARROLL SCHOOL
$1,000GENERAL CHARITABLE PURPOSES
BOSTON SYMPHONY ORCHESTRA
$55,000GENERAL CHARITABLE PURPOSES
MASSACHUSETTS GENERAL HOSPITAL
$25,000GENERAL CHARITABLE PURPOSES
UNIVERSITY OF TORONTO
$15,000GENERAL CHARITABLE PURPOSES
FUSION ACADEMY ANNUAL FUND
$10,000GENERAL CHARITABLE PURPOSES
NORTHEAST ARC INC
$10,000GENERAL CHARITABLE PURPOSES
BRIGHAM AND WOMEN'S HOSPITAL
$2,500GENERAL CHARITABLE PURPOSES
BROOKLINE MUSIC SCHOOL
$2,500GENERAL CHARITABLE PURPOSES
BROOKLINE FOOD PANTRY
$2,500GENERAL CHARITABLE PURPOSES
THE CARROLL SCHOOL
$1,000GENERAL CHARITABLE PURPOSES
ELLEN GIFFORD CAT SHELTER
$500GENERAL CHARITABLE PURPOSES
PERKINS SCHOOL FOR THE BLIND
$25,000GENERAL CHARITABLE PURPOSES