The Massachusetts State Capitol

Form 990-PFTax year 2025EIN 04-3541108

Epker-Sinha Foundation

A private foundation in Boston, MA. Its return for tax year 2025 lists 13 grants and $1.1 million paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Mr Arthur G Epker III
448 Beacon Street 6
Boston, MA 021151002
(617) 526-8992
Form and materials
Application should be in the form of letter
Deadlines
Applications are accepted throughout the year
Restrictions
None

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $1,098,000

    Grants listed
    13
    Assets, end of year
    $25,108,819
  • Tax year 2024

    $997,000

    Grants listed
    12
    Assets, end of year
    $24,332,926
  • Tax year 2023

    $1,037,870

    Grants listed
    14
    Assets, end of year
    $21,782,047
  • Tax year 2022

    $1,119,013

    Grants listed
    12
    Assets, end of year
    $19,221,739
  • Tax year 2021

    $986,993

    Grants listed
    15
    Assets, end of year
    $24,016,049
  • Tax year 2020

    $980,793

    Grants listed
    15
    Assets, end of year
    $22,191,440
  • Tax year 2019

    $1,036,013

    Grants listed
    20
    Assets, end of year
    $19,698,640
  • Tax year 2018

    $885,100

    Grants listed
    24
    Assets, end of year
    $18,475,268

Grants paid in 2025

13 grants, largest first

As listed on the return.

  1. University of MichiganAnn Arbor, MI

    Unrestricted

    $375,000
  2. Winsor SchoolBoston, MA

    Unrestricted

    $250,000
  3. The Steppingstone FoundationBoston, MA

    Unrestricted

    $150,000
  4. Harvard Business SchoolBoston, MA

    Unrestricted

    $100,000
  5. Forest Highlands FoundationPhoenix, AZ

    Unrestricted

    $75,000
  6. Stanford UniversityStanford, CA

    Unrestricted

    $75,000
  7. Community RowingBrighton, MA

    Unrestricted

    $30,000
  8. Cure Alzheimers FundWellesley HLS, MA

    Unrestricted

    $15,000
  9. Massachusetts Historical SocietyBoston, MA

    Unrestricted

    $10,000
  10. The Country Club Employee Education FundChestnut Hill, MA

    Unrestricted

    $10,000
  11. More Than WordsWaltham, MA

    Unrestricted

    $5,000
  12. Ouimet FunNorton, MA

    Unrestricted

    $2,000
  13. Crowns of CourageScottsdale, AZ

    Unrestricted

    $1,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education4 grants $485,00095% of the total
  2. Medical research1 grant $15,0003% of the total
  3. Arts and culture1 grant $10,0002% of the total
  4. Human services1 grant $1,000<1% of the total

By State

Grants to organizations with a US address, latest year.

  1. Massachusetts9 grants $572,000
  2. Michigan1 grant $375,000
  3. Arizona2 grants $76,000
  4. California1 grant $75,000

Officers, directors and trustees

4 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Arthur G Epker IIITRUSTEE Hours 0Pay $0
  • Medha SinhaTRUSTEE Hours 0Pay $0
  • Eva J EpkerTRUSTEE Hours 0Pay $0
  • Karthic N EpkerTRUSTEE Hours 0Pay $0

The return

More foundations

Similar foundations

Same main cause (education), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Chiang J Li MD Family Foundation IncBoston, MA 2 grants Preselected only $1,100,000 giving
  2. Weld FoundationBoston, MA 66 grants Preselected only $1,104,300 giving
  3. Sumner Roy Kates Charitable Trust #0762147Boston, MA 51 grants Preselected only $1,010,500 giving
  4. Muriel & Norman B Leventhal Family Foundation IncBoston, MA 3 grants Preselected only $1,200,000 giving
  5. Lawrence J and Anne Rubenstein Charitable FoundationBoston, MA 35 grants Accepts applications $1,214,500 giving