The Daniel W. Dietrich II Foundation is a Philadelphia-based funder that concentrates almost exclusively on major cultural and independent-school institutions in the city and region. Its large, multi-million dollar gifts support capital projects, named gallery space, and alumni/program initiatives at established arts organizations and private schools. The foundation favors a small number of high-impact, visible grants rather than broad-based giving.
The Daniel W Dietrich II Foundation’s largest recent commitments have been repeated seven-figure gifts to the Philadelphia Museum of Art and Westtown School, signaling a pattern of funding that centers on physical spaces, galleries, and arts facilities. Across the recent grant list, the foundation backs established institutions with large capital or named-space projects rather than broad, small-ticket grantmaking. That approach appears in Philadelphia Museum of Art’s Daniel W. Dietrich II Galleries, which received $2,000,000 in both 2023 and 2024, and in Westtown School’s visual arts wing and Center for Living Arts project, each supported with $835,000 grants. The foundation also underwrites major arts education and museum infrastructure at Curtis Institute of Music, The Woodmere Art Museum, and the University of Pennsylvania, alongside targeted support for sculpture acquisition and digital audit work. The pattern is highly concentrated in arts and independent-school settings, with grants often attached to specific project names, gallery spaces, or program initiatives. Recipient organizations include museums, conservatories, schools, and community arts groups in Philadelphia and nearby regional markets.
Museum and gallery work is a core theme. The foundation gave $250,000 to The Woodmere Art Museum for Maguire Hall Gallery Number 4 and $160,000 to James a Michener Art Museum for the acquisition of Robert Engman sculptures. It also supported the University of Pennsylvania with $150,000 for an ICA digital audit, linking its arts funding to institutional planning and infrastructure. In arts education, the foundation made a series of grants to Curtis Institute of Music for the Young Alumni Grant Program, including $670,000 in 2023 and another $660,000 in 2025. School-based arts facilities are another recurring focus: Westtown School received $835,000 for the Establishment of Hildreth-Dietrich Visual Arts Wing and $835,000 for the Center for Living Arts project. The foundation also funds community-facing arts participation and programming, including $25,000 to Playpenn Inc for The Foundry Program and $20,000 to Bristol Riverside Theater for the American Rising Series.
Typical grants are large: the 25th percentile is $22,500, the median is $150,000, and the 75th percentile is $670,000. The recent record shows repeated support to the same institutions across multiple years, including the Philadelphia Museum of Art, Westtown School, Curtis Institute of Music, Vanguard Charitable Endowment Fund, Playpenn Inc, and Bristol Riverside Theater. That repeat pattern suggests ongoing project or program support rather than one-off awards. The foundation is a private grantmaker; it does not fund individuals and does not make program-related investments.
$2.3M
$60.7M
$6.5M
$3M
Most grants fall between $23K and $670K, with a median of $150K.
25th Percentile
$23K
Median
$150K
75th Percentile
$670K
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Concentrated, high-value grants to a few repeat grantees—combining capital/major project funding and designated program support—primarily within arts and independent education in the Philadelphia region.
Notable grantees: Philadelphia Museum of Art, Curtis Institute of Music, Westtown School
Grantmaking is regional and heavily centered in Pennsylvania. Seventeen of the 24 recent grants went to recipients in PA, including multiple awards in Philadelphia and West Chester. Outside Pennsylvania, the foundation gave to recipients in New York, Rhode Island, and the District of Columbia region is not represented in the recent list. Philadelphia appears most often among recipient cities, with additional grants in West Chester, Doylestown, Bristol, and Norristown.
The recent grants show a strong emphasis on museums, art museums and galleries, music training, and independent schools. Recipients include the Philadelphia Museum of Art, Curtis Institute of Music, Westtown School, The Woodmere Art Museum, and James a Michener Art Museum.
Yes. Several recipients appear in multiple years, including the Philadelphia Museum of Art in 2023 and 2024, Westtown School in 2024 and 2025, Curtis Institute of Music in 2023, 2024, and 2025, and Playpenn Inc in 2023, 2024, and 2025.
The grant-size distribution is weighted toward larger awards: the 25th percentile is $22,500, the median is $150,000, and the 75th percentile is $670,000. Recent grants include multiple six-figure awards and several million-dollar commitments.
It gives most often in Pennsylvania, which accounts for 73% of grants to recipients in the recent data. Philadelphia is the most visible recipient city, with additional Pennsylvania grants in West Chester, Doylestown, Bristol, and Norristown.
No. The foundation’s profile indicates that it does not fund individuals.
2026
Source: IRS Form 990-PF, fiscal year 2026.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| CURTIS INSTITUTE OF MUSIC | PHILADELPHIA, PA | $1,000,000 | 2026 | YOUNG ALUMNI FUND GRANT (INSTALLMENT 1 OF 3) |
| WESTTOWN SCHOOL | WEST CHESTER, PA | $830,000 | 2026 | CENTER FOR THE LIVING ARTS RENOVATION PROJECT (INSTALLMENT 3 OF 3) |
| THE WOODMERE ART MUSEUM | PHILADELPHIA, PA | $250,000 | 2026 | MAGUIRE HALL GRANT (INSTALLMENT 2 OF 2) |
| VANGUARD CHARITABLE ENDOWMENT FUND | WARWICK, RI | $170,000 | 2026 | THE DANIEL W. DIETRICH II FUND |
| ASSOCIATION FOR PUBLIC ART | PHILADELPHIA, PA | $56,000 | 2026 | RESTORATION OF SYMBIOSIS SCULPTURE & RELATED PROGRAMMING |
| NETWORK FOR NEW MUSIC | PHILADELPHIA, PA | $15,000 | 2026 | STRATEGIC PLAN CHALLENGE GRANT (YEAR 1 OF 3) |
| THEATRE HORIZON | NORRISTOWN, PA | $10,000 | 2026 | GENERAL PURPOSES |
| COMMUNICATION FIRST | WASHINGTON, DC | $300 | 2026 | GENERAL PURPOSES |
| WESTTOWN SCHOOL | WEST CHESTER, PA | $835,000 | 2025 | ESTABLISHMENT OF HILDRETH-DIETRICH VISUAL ARTS WING (2 OF 3) |
| CURTIS INSTITUTE OF MUSIC | PHILADELPHIA, PA | $660,000 | 2025 | YOUNG ALUMNI GRANT PROGRAM (3 OF 3) |
| THE WOODMERE ART MUSEUM | PHILADELPHIA, PA | $250,000 | 2025 | MAGUIRE HALL GALLERY NUMBER 4 (1 OF 2) |
| JAMES A MICHENER ART MUSEUM | DOYLESTOWN, PA | $160,000 | 2025 | ACQUISITION OF ROBERT ENGMAN SCULPTURES |
| VANGUARD CHARITABLE ENDOWMENT FUND | WARWICK, RI | $150,000 | 2025 | THE DANIEL W. DIETRICH II FUND |
| UNIVERSITY OF PENNSYLVANIA | PHILADELPHIA, PA | $150,000 | 2025 | ICA DIGITAL AUDIT |
| SAINT JOSEPH'S UNIVERSITY | PHILADELPHIA, PA | $82,000 | 2025 | MAGUIRE ART MUSEUM - PURCHASE OF ROBERT ENGMAN SCULPTURES |
| PLAYPENN INC | PHILADELPHIA, PA | $25,000 | 2025 | THE FOUNDRY PROGRAM |
| THEATRE HORIZON | NORRISTOWN, PA | $10,000 | 2025 | GENERAL PURPOSES |
| PHILADELPHIA MUSEUM OF ART | PHILADELPHIA, PA | $2,000,000 | 2024 | THE DANIEL W. DIETRICH II GALLERIES |
| WESTTOWN SCHOOL | WEST CHESTER, PA | $835,000 | 2024 | CENTER FOR LIVING ARTS PROJECT |
| CURTIS INSTITUTE OF MUSIC | PHILADELPHIA, PA | $670,000 | 2024 | YOUNG ALUMNI GRANT PROGRAM |
| VANGUARD CHARITABLE ENDOWMENT FUND | WARWICK, RI | $150,000 | 2024 | GENERAL PURPOSES |
| PLAYPENN INC | PHILADELPHIA, PA | $25,000 | 2024 | GENERAL PURPOSES |
| OMEGA INSTITUTE FOR HOLISTIC STUDIES | RHINEBECK, NY | $20,000 | 2024 | GENERAL PURPOSES |
| BRISTOL RIVERSIDE THEATER | BRISTOL, PA | $15,000 | 2024 | GENERAL PURPOSES |
| PHILADELPHIA MUSEUM OF ART | PHILADELPHIA, PA | $2,000,000 | 2023 | THE DANIEL W. DIETRICH II GALLERIES |
| CURTIS INSTITUTE OF MUSIC | PHILADELPHIA, PA | $670,000 | 2023 | YOUNG ALUMNI GRANT PROGRAM |
| THE CLAY STUDIO | PHILADELPHIA, PA | $250,000 | 2023 | CLAY TOGETHER PROJECT |
| VANGUARD CHARITABLE ENDOWMENT FUND | WARWICK, RI | $215,000 | 2023 | GENERAL PURPOSES |
| PLAYPENN INC | PHILADELPHIA, PA | $25,000 | 2023 | GENERAL PURPOSES |
| WHITNEY MUSEUM OF AMERICAN ART | NEW YORK, NY | $25,000 | 2023 | GENERAL PURPOSES |
| BRISTOL RIVERSIDE THEATER | BRISTOL, PA | $20,000 | 2023 | AMERICAN RISING SERIES |
| ASTRAL ARTISTS INC | PHILADELPHIA, PA | $1,500 | 2023 | GENERAL PURPOSES |
CURTIS INSTITUTE OF MUSIC
$1,000,000YOUNG ALUMNI FUND GRANT (INSTALLMENT 1 OF 3)
WESTTOWN SCHOOL
$830,000CENTER FOR THE LIVING ARTS RENOVATION PROJECT (INSTALLMENT 3 OF 3)
VANGUARD CHARITABLE ENDOWMENT FUND
$170,000THE DANIEL W. DIETRICH II FUND
ASSOCIATION FOR PUBLIC ART
$56,000RESTORATION OF SYMBIOSIS SCULPTURE & RELATED PROGRAMMING
NETWORK FOR NEW MUSIC
$15,000STRATEGIC PLAN CHALLENGE GRANT (YEAR 1 OF 3)
WESTTOWN SCHOOL
$835,000ESTABLISHMENT OF HILDRETH-DIETRICH VISUAL ARTS WING (2 OF 3)
CURTIS INSTITUTE OF MUSIC
$660,000YOUNG ALUMNI GRANT PROGRAM (3 OF 3)
VANGUARD CHARITABLE ENDOWMENT FUND
$150,000THE DANIEL W. DIETRICH II FUND
MAGUIRE ART MUSEUM - PURCHASE OF ROBERT ENGMAN SCULPTURES
PLAYPENN INC
$25,000THE FOUNDRY PROGRAM
WESTTOWN SCHOOL
$835,000CENTER FOR LIVING ARTS PROJECT
CURTIS INSTITUTE OF MUSIC
$670,000YOUNG ALUMNI GRANT PROGRAM
VANGUARD CHARITABLE ENDOWMENT FUND
$150,000GENERAL PURPOSES
PLAYPENN INC
$25,000GENERAL PURPOSES
CURTIS INSTITUTE OF MUSIC
$670,000YOUNG ALUMNI GRANT PROGRAM
VANGUARD CHARITABLE ENDOWMENT FUND
$215,000GENERAL PURPOSES
PLAYPENN INC
$25,000GENERAL PURPOSES
WHITNEY MUSEUM OF AMERICAN ART
$25,000GENERAL PURPOSES
ASTRAL ARTISTS INC
$1,500GENERAL PURPOSES