The Tiedemann Foundation
Historical FunderConcord, Massachusetts · EIN 04-3542811 · Private foundation
Half of its grants to organizations were between $2,000 and $10,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | Edward G Tiedemann Jr |
|---|---|
| Address | 656 Barretts Mill Road, Concord MA 01742 |
| Phone | 9783718444 |
| etiedemann@alum.mit.edu | |
| 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. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
36% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Concord Museum | Concord, MA | 8,000.00 for collection enhancement; the remaining 12,000.00 is unrestricted. | $20,000 |
| Virginia Tech | Blacksburg, VA | Needs of the College of Engineering | $12,000 |
| Purdue Foundation | West Lafayette, IN | For the Edward G. Tiedemann Jr. Electrical and Computer Engineering Endowment | $12,000 |
| Historic New England | Haverhill, MA | Unrestricted and Historic New England Summit. | $12,000 |
| Peabody Essex Museum | Salem, MA | Unrestricted | $10,000 |
| Massachusetts Institute of Technology | Boston, MA | Department of Electrical and Computer Engineering and MIT Energy Initiative | $10,000 |
| Trustees of the Reservations | Boston, MA | Unrestricted | $5,000 |
| Maritime Museum of San Diego | San Diego, CA | Unrestricted | $5,000 |
| Concord Land Conservation Trust | Concord, MA | Land conservation | $4,000 |
| Folk Arts Center of New England | Stoneham, MA | Unrestricted | $3,000 |
| University of California San Diego | La Jolla, CA | For the Dr. Edward G. Tiedemann Jr. Scholars of Excellence Endowment | $3,000 |
| Country Dance and Song Society | Easthampton, MA | Unrestricted | $2,000 |
| The Nature Conservancy | Merrifield, VA | Support for programs in New England | $2,000 |
| Concord Housing Foundation | Concord, MA | Support of low income housing. | $2,000 |
| Peak House Heritage Center | Medfield, MA | For preservation supplies. | $2,000 |
| Custom House Maritime Museum | Newburyport, MA | Unrestricted | $1,000 |
| Cambria County Library | Johnstown, PA | Unrestricted | $1,000 |
| The Concord Bridge | Concord, MA | Unrestricted | $1,000 |
| Friends of Guest House | Alexandria, VA | Unrestricted | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $108,000 | 19 |
| 2024 | $98,000 | 20 |
| 2023 | $85,500 | 17 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 10, 2026 - IRS e-file batch, object ID 202641319349100619
- IRS Tax Exempt Organization Search for EIN 04-3542811
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.