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Form 990-PFTax year 2025EIN 04-3542811

The Tiedemann Foundation

A private foundation in Concord, MA. Its return for tax year 2025 lists 19 grants and $108,000 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
Edward G Tiedemann Jr
656 Barretts Mill Road
Concord, MA 01742
(978) 371-8444
[email protected]
Form and materials
Applications should include background of the organization a detailed description of the reason for the request contact information and indication of non-profit status. Grant decisions for the year are made at the annual board meeting which is held sometime after May 15 and normally before September 1.
Deadlines
May 15
Restrictions
The Tiedemann Foundation primarily makes grants to educational historic preservation and environmental causes.

Assets and giving by year

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

  • Tax year 2025

    $108,000

    Grants listed
    19
    Assets, end of year
    $631,119

  • Tax year 2024

    $98,000

    Grants listed
    20
    Assets, end of year
    $708,812

  • Tax year 2023

    $85,500

    Grants listed
    17
    Assets, end of year
    $748,223

  • Tax year 2022

    $66,000

    Grants listed
    16
    Assets, end of year
    $735,075

  • Tax year 2021

    $75,500

    Grants listed
    15
    Assets, end of year
    $767,994

  • Tax year 2020

    $60,000

    Grants listed
    14
    Assets, end of year
    $725,289

Grants paid in 2025

19 grants, largest first

As listed on the return.

  1. Concord MuseumConcord, MA

    8,000.00 for collection enhancement; the remaining 12,000.00 is unrestricted.

    $20,000
  2. Virginia TechBlacksburg, VA

    Needs of the College of Engineering

    $12,000
  3. Purdue FoundationWest Lafayette, IN

    For the Edward G. Tiedemann Jr. Electrical and Computer Engineering Endowment

    $12,000
  4. Historic New EnglandHaverhill, MA

    Unrestricted and Historic New England Summit.

    $12,000
  5. Peabody Essex MuseumSalem, MA

    Unrestricted

    $10,000
  6. Massachusetts Institute of TechnologyBoston, MA

    Department of Electrical and Computer Engineering and MIT Energy Initiative

    $10,000
  7. Trustees of the ReservationsBoston, MA

    Unrestricted

    $5,000
  8. Maritime Museum of San DiegoSan Diego, CA

    Unrestricted

    $5,000
  9. Concord Land Conservation TrustConcord, MA

    Land conservation

    $4,000
  10. Folk Arts Center of New EnglandStoneham, MA

    Unrestricted

    $3,000
  11. University of California San DiegoLa Jolla, CA

    For the Dr. Edward G. Tiedemann Jr. Scholars of Excellence Endowment

    $3,000
  12. Country Dance and Song SocietyEasthampton, MA

    Unrestricted

    $2,000
  13. The Nature ConservancyMerrifield, VA

    Support for programs in New England

    $2,000
  14. Concord Housing FoundationConcord, MA

    Support of low income housing.

    $2,000
  15. Peak House Heritage CenterMedfield, MA

    For preservation supplies.

    $2,000
  16. Custom House Maritime MuseumNewburyport, MA

    Unrestricted

    $1,000
  17. Cambria County LibraryJohnstown, PA

    Unrestricted

    $1,000
  18. The Concord BridgeConcord, MA

    Unrestricted

    $1,000
  19. Friends of Guest HouseAlexandria, VA

    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. Arts and culture5 grants $28,00070% of the total
  2. Environment2 grants $9,00022% of the total
  3. Housing and shelter1 grant $2,0005% of the total
  4. Health1 grant $1,0002% of the total

By State

Grants to organizations with a US address, latest year.

  1. Massachusetts12 grants $72,000
  2. Virginia3 grants $15,000
  3. Indiana1 grant $12,000
  4. California2 grants $8,000
  5. Pennsylvania1 grant $1,000

Officers, directors and trustees

2 people as filed

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

  • Edward G Tiedemann JrPresident Hours 1Pay $0
  • Lori JerominDirector Hours 0Pay $0

The return

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