The New Hampshire State Capitol
Foundation Lookup

Form 990-PFTax year 2025EIN 02-6013780

William W Treat Foundation

A private foundation in Stratham, NH. Its return for tax year 2025 lists 10 grants and $129,318 paid in grants.

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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

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests. It still lists the details below.

Contact person
On file
Phone
On file
Email
On file
Mailing address
On file
Form and materials
On file
Deadlines
None
Restrictions
None

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Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $129,318

    Grants listed
    10
    Assets, end of year
    $1,390,966

  • Tax year 2024

    $116,742

    Grants listed
    10
    Assets, end of year
    $1,215,337

  • Tax year 2023

    $122,915

    Grants listed
    11
    Assets, end of year
    $1,267,887

  • Tax year 2022

    $130,980

    Grants listed
    10
    Assets, end of year
    $1,396,185

  • Tax year 2021

    $112,072

    Grants listed
    11
    Assets, end of year
    $1,419,813

  • Tax year 2020

    $105,848

    Grants listed
    14
    Assets, end of year
    $1,238,565

Grants paid in 2025

10 grants, largest first

As listed on the return.

  1. New Hampshire Institute for CivicsConcord, NH

    Education

    $43,000
  2. University of New Hampshire FoundationDurham, NH

    Education

    $40,000
  3. American Independence MuseumExeter, NH

    Operating costs

    $25,000
  4. University of Maine FoundationOrono, ME

    Education

    $5,818
  5. Citizens CountHampton, NH

    Operating costs

    $5,000
  6. Winterport Memorial LibraryWinterport, ME

    Education

    $4,000
  7. New England Historic Genealogical SocietyBoston, MA

    Operating costs

    $2,500
  8. National College of Probate JudgesWilliamsburg, VA

    Operating costs

    $2,000
  9. Friends of St Mary & Andrew ChurchStratham, NH

    Operating costs

    $1,000
  10. University of Arizona FoundationTucson, AZ

    Education

    $1,000

Where the money goes

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

  1. Education3 grants $46,81865% of the total
  2. Arts and culture1 grant $25,00035% of the total

By State

Grants to organizations with a US address, latest year.

  1. New Hampshire5 grants $114,000
  2. Maine2 grants $9,818
  3. Massachusetts1 grant $2,500
  4. Virginia1 grant $2,000
  5. Arizona1 grant $1,000

Officers, directors and trustees

4 people as filed

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

  • H Alfred CasassaTRUSTEE Hours 1Pay $2,500
  • Robert A CasassaTRUSTEE Hours 1Pay $2,500
  • Peter F H LambTRUSTEE Hours 1Pay $3,500
  • Josephine M StrobleTRUSTEE Hours 1Pay $2,500

The return

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