The Delaware State Capitol

Form 990-PFTax year 2025EIN 47-2323601

Bronson Family Foundation

A private foundation in Wilmington, DE. Its return for tax year 2025 lists 10 grants and $28,165 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

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

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

    $28,165

    Grants listed
    10
    Assets, end of year
    $708,877
  • Tax year 2024

    $30,668

    Grants listed
    14
    Assets, end of year
    $670,979
  • Tax year 2023

    $32,083

    Grants listed
    14
    Assets, end of year
    $571,777
  • Tax year 2022

    $33,832

    Grants listed
    15
    Assets, end of year
    $614,403
  • Tax year 2021

    $37,497

    Grants listed
    17
    Assets, end of year
    $678,888
  • Tax year 2020

    $37,666

    Grants listed
    15
    Assets, end of year
    $613,239
  • Tax year 2019

    $33,999

    Grants listed
    12
    Assets, end of year
    $610,505

Grants paid in 2025

10 grants, largest first

As listed on the return.

  1. Rochester Area Sports Trails AllianceRochester, VT

    General & Unrestricted

    $4,333
  2. Mahoosuc Land Trust IncBethel, ME

    General & Unrestricted

    $4,000
  3. Vermont Land Trust IncMontpelier, VT

    General & Unrestricted

    $4,000
  4. Cultivating CommunityPortland, ME

    General & Unrestricted

    $3,000
  5. New England Mountain Bike Association IncActon, MA

    Portland Maine Chapter fund

    $2,667
  6. Portland TrailsPortland, ME

    General & Unrestricted

    $2,666
  7. Maine Island Trail AssociationPortland, ME

    General & Unrestricted

    $2,333
  8. Kilham Bear Center IncLyme, NH

    General & Unrestricted

    $2,000
  9. Granite Backcountry AllianceNorth Conway, NH

    General & Unrestricted

    $1,833
  10. Londonderry Volunteer Rescue SquadLondonderry, VT

    General & Unrestricted

    $1,333

Where the money goes

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

  1. Environment4 grants $12,99948% of the total
  2. Sports and recreation3 grants $8,83333% of the total
  3. Food and agriculture1 grant $3,00011% of the total
  4. Animals1 grant $2,0007% of the total

By State

Grants to organizations with a US address, latest year.

  1. Maine4 grants $11,999
  2. Vermont3 grants $9,666
  3. New Hampshire2 grants $3,833
  4. Massachusetts1 grant $2,667

Officers, directors and trustees

3 people as filed

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

  • Katharine Quimby BronsonVP Hours 1Pay $0
  • William Jewett BronsonSec Hours 1Pay $0
  • Nathaniel R Bronson IIIPres, Dir, Treas 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 Morning Sun FoundationWilmington, DE 6 grants Accepts applications $27,500 giving
  2. Braatz Fund for Culture Community and ConservationWilmington, DE 11 grants Preselected only $32,000 giving
  3. Perl Nelson Family Foundation IncWilmington, DE 19 grants Preselected only $33,600 giving
  4. Golden Pig Family FoundationWilmington, DE 11 grants Preselected only $23,500 giving
  5. Foundation for Improving HorizonsWilmington, DE 5 grants Preselected only $22,900 giving