Popplestone Foundation

BOSTON, MA EIN: 04-3528004

The Popplestone Foundation is a private grantmaking foundation established in 2000 and based in Boston, Massachusetts. The foundation operates as a 501(c)(3) charitable organization and serves as a significant philanthropic institution with substantial financial resources dedicated to supporting various causes across the United States.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$27.6M

-64.7% YoY

Annual Giving

$51.3M

-64.7% YoY

Grant Count

24

-54.7% YoY

Avg Grant Size

$2.1M

-22.1% YoY

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation funds across multiple strategic areas, with documented support for:

  • Democracy & Civic Engagement — Including general operating support, safeguarding elections, and legal accountability initiatives
  • Music Education — Including choral singing initiatives and support for music conservatories
  • Education — Broader educational initiatives
  • Human Services — Various human services programs

The foundation does not maintain a public website and does not publicly disclose a formal mission statement or detailed funding priorities.

Grantmaking

The foundation awarded 32 grants in the most recent reporting period.

Grant Range

$50,000 to $12,500,000

Average Grant

varies by reporting period

How to Apply

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Geographic Focus

Where this funder awards grants

The foundation supports organizations across multiple states and regions, with particular concentration in:

  • Massachusetts (60% of funding)
  • Washington, D.C.
  • New York
  • Alabama
  • California
  • Connecticut
  • Georgia
  • Maryland
  • Florida
  • Pennsylvania
  • Illinois
  • Rhode Island
  • Colorado

Grant Distribution by State

14states
+6 more states

Cities

AmherstArlingtonAtlantaBaltimoreBostonBoulderBridgeportBrooklynCambridgeChicagoCincinnatiDorchesterEast BostonFairfieldMineolaMontgomeryNew CanaanNew HavenNew YorkNorthampton

Financial History

Multi-year comparison from IRS filings

Most Recent Financial Data (2024):

  • Total assets: $27,572,559
  • Total revenues: $1,196,573
  • Total expenses: $51,788,482
  • Total giving: $51,278,754

Prior Year Data (2023):

  • Total assets: $78,164,469
  • Total revenues: $195,000,000
  • Total expenses: $146,000,000
  • Annual giving: $145,306,337

Historical Context: The foundation experienced dramatic growth in 2023, distributing over $145 million in grants compared to an average of approximately $5 million annually from 2011-2022. Between 2017 and 2022, the foundation made $56 million in total contributions. The foundation's assets are substantially funded through contributions from the Alan J. Dworsky Irrevocable Trust, which contributed $20 million in 2022 alone.

Tax Status:

  • EIN: 04-3528004
  • Tax-exempt since December 2001
  • Designated as 501(c)(3)
  • Private non-operating foundation
  • Organized as a trust
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$54M$107M$161M$214M20202021202220232024
Metric202420232022
Total Assets$27,572,559$78,164,469$29,345,940
Revenue$1,196,573$194,570,556$32,729,756
Expenses$51,788,482$145,752,029$23,656,638
Qualifying Distributions$51,580,014$145,377,965$23,597,314
Net Investment Income$1,441,156$3,876,536$12,716,120
Distributable Amount$1,640,944$5,943,289$1,381,101

Giving Over Time

Total grant dollars and number of grants per year

$0$36M$73M$109M$145M15 grants202010 grants202132 grants202253 grants202324 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

PROTECT DEMOCRACY PROJECT$10.0MWILLIAM J BRENNAN JR CEN…$10.0MSTATES UNITED DEMOCRACY …$5.0MCAMPAIGN LEGAL CENTER$3.3MPARENTCORPS$3.0MYOUNG PEOPLE'S CHORUS OF…$3.0MPRO PUBLICA$2.5MSD FOUNDATION FBO VOTING…$2.5MTHE READING LEAGUE INC$2.5MHARMONY PROGRAM$2.0M

Grant Size Distribution

131 grants across all recorded years

<$50K3$50–100K9$100–250K26$250–500K35$500K–1M46$1–5M12$5M+

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Leadership team and compensation from IRS filings

Founders & Trustees:

  • Alan Dworsky (founder, former mutual fund portfolio manager at Putnam Investments and founder of Mt. Auburn Management; deceased January 2021)
  • Suzanne Werber Dworsky (co-founder, career in urban design and landscape architecture; current trustee)
  • Sally Rubin (co-trustee)

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
SUZANNE E WERBER DWORSKY DECEASEDTRUSTEE
SALLY L RUBINTRUSTEE

Recent News & Activity

Recent developments and announcements

2023

The foundation significantly increased its grantmaking activity in 2023-2024, with major commitments to democracy and civic engagement initiatives. Notable 2024 grants demonstrate a strategic focus on election safeguarding and legal accountability, with multi-year funding commitments extending through 2026 for several major recipients.

Subject Areas

Focus areas based on grantmaking activity

Related Funders

Similar funders by location and focus area

Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.

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