The New Hampshire State Capitol
Foundation Lookup

Form 990-PFTax year 2025EIN 84-1568095

Caswell Foundation

A private foundation in Rye, NH. Its return for tax year 2025 lists 11 grants and $188,000 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

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
Linda Caswell
187 Lowell St
Arlington, MA 02474
(617) 283-5951
[email protected]
Form and materials
Proposal in letter form stating the purpose and amount requested. Additional information may be requested.
Deadlines
None
Restrictions
None

Assets and giving by year

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

  • Tax year 2025

    $188,000

    Grants listed
    11
    Assets, end of year
    $401,777

  • Tax year 2024

    $312,625

    Grants listed
    11
    Assets, end of year
    $176,836

  • Tax year 2023

    $237,200

    Grants listed
    12
    Assets, end of year
    $488,070

  • Tax year 2022

    $108,000

    Grants listed
    6
    Assets, end of year
    $757,934

  • Tax year 2021

    $228,000

    Grants listed
    10
    Assets, end of year
    $888,195

  • Tax year 2020

    $125,060

    Grants listed
    6
    Assets, end of year
    $324,092

Grants paid in 2025

11 grants, largest first

As listed on the return.

  1. Habitat Education CenterBelmont, MA

    Paddling for empowerment program

    $35,000
  2. UNH FoundationDurham, NH

    Water monitoring student scholarship

    $25,000
  3. Mystic River Watershed AssociationArlington, MA

    Water quality research and improvement

    $25,000
  4. Trustees of ReservationsBoston, MA

    Mobile farmers market promotion program

    $25,000
  5. Friends ForeverDurham, NH

    Foreign exchange scholarships

    $20,000
  6. American Diabetes AssociationArlington, VA

    2024 Tour de Cure

    $20,000
  7. YMCA of Greater BostonBoston, MA

    Executive Director leadership incentive program

    $18,000
  8. UcctTucson, AZ

    Update structures

    $5,000
  9. Turtle Rescue LeagueSouthbridge, MA

    Camera monitoring equipment

    $5,000
  10. NH Turtle RescueNottingham, NH

    Camera monitoring equipment

    $5,000
  11. Edra Toth FoundationFarmington, NH

    Scholarships for students

    $5,000

Where the money goes

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

  1. Environment2 grants $50,00051% of the total
  2. Health1 grant $20,00020% of the total
  3. Human services1 grant $18,00018% of the total
  4. Animals1 grant $5,0005% of the total
  5. Arts and culture1 grant $5,0005% of the total

By State

Grants to organizations with a US address, latest year.

  1. Massachusetts5 grants $108,000
  2. New Hampshire4 grants $55,000
  3. Virginia1 grant $20,000
  4. Arizona1 grant $5,000

Officers, directors and trustees

3 people as filed

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

  • Linda CaswellPresident Hours 1Pay $0
  • Hollis Caswell IVSecretary Hours 1Pay $0
  • David CaswellTreasurer Hours 1Pay $0

The return

More foundations

Similar foundations

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

  1. The Edgemont Foundation IncSunapee, NH 9 grants Preselected only $215,000 giving
  2. Helmut Wolfgang Schumann FoundationLebanon, NH 63 grants Preselected only $135,450 giving
  3. Grace S Shaw-Kennedy FoundationBelmont, NH 7 grants Accepts applications $125,000 giving
  4. Joseph P Donahue Charitable FoundationLebanon, NH 68 grants Preselected only $313,375 giving
  5. An Environmental Trust IncElkins, NH 10 grants Accepts applications $317,434 giving