George & Miriam Martin Foundation
Historical FunderChester Springs, Pennsylvania · EIN 23-2828201 · Private foundation · Website
Half of its grants to organizations were between $2,000 and $7,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | GEORGE MARTIN |
|---|---|
| Address | 1047 JAINE LANE, CHESTER SPRINGS PA 19425 |
| Phone | 2158347656 |
| Form and materials | NO PARTICULAR FORM |
| Deadlines | NONE |
| Restrictions | CHARITABLE RIVER OR WATERSHED PROTECTION ACTIVITIES |
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
62% of grants went outside Pennsylvania.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Earthjustice | San Francisco, CA | Support their work | $500,000 |
| Delaware River Keeper | Bristol, PA | Support their work | $35,000 |
| Mother Jones | Big Sandy, TX | Support their work | $20,000 |
| International Rivers Network | Oakland, CA | Support their work | $15,000 |
| American Whitewater | Springfield, OR | Support their work | $10,000 |
| Natural Lands Trust | Media, PA | Support their work | $10,000 |
| Penn Environment | Philadelphia, PA | Support their work | $9,000 |
| Rivers Without Borders | Port Townsend, WA | Support their work | $7,000 |
| Ding Darling Wildlife Society | Sanibel, FL | Support their work | $5,000 |
| Mahoosuc Land Trust | Bethel, ME | Support their work | $5,000 |
| Penn Future | Harrisburg, PA | Support their work | $5,000 |
| Royal River Conservation Trust | Yarmouth, ME | Support their work | $5,000 |
| Woodstock Land Conservancy | Woodstock, NY | Support their work | $5,000 |
| Green Amendments for the Generations | Bristol, PA | Support their work | $5,000 |
| Community Environmental Legal Defense Fund (Celdf) | Mercersburg, PA | Support their work | $4,000 |
| Maine Rivers | Yarmouth, ME | Support their work | $4,000 |
| Green Valleys Assoc | Pottstown, PA | Support their work | $3,000 |
| Rails to Trails Conservancy | Washington, DC | Support their work | $3,000 |
| Earth Law Center | Durango, CO | Support their work | $2,000 |
| French & Pickering Creek Conservation | Devault, PA | Support their work | $2,000 |
| Inside Climate News | Brooklyn, NY | Support their work | $2,000 |
| Natural Resources Council of Maine | Augusta, ME | Support their work | $2,000 |
| Pennsylvania Environmental Defense Foundation | Boalsburg, PA | Support their wor | $2,000 |
| Wild Earth Guardians | Sante Fe, NM | Support their work | $2,000 |
| Clean Air Council | Philadelphia, PA | Support their work | $1,000 |
| Downeast Salmon Federation | Columbia Falls, ME | Support their work | $1,000 |
| Horseshoe Trail Conservancy Inc | Southeastern, PA | Support their work | $1,000 |
| Interamerican Assoc for Environmental Defense (Aida) | San Francisco, CA | Support their work | $1,000 |
| Public Employees for Environmental Responsibility (Peer) | Silver Springs, MD | Support their work | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $667,000 | 29 |
| 2024 | $2,256,371 | 29 |
| 2023 | $2,193,100 | 34 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 6, 2026 - IRS e-file batch, object ID 202641269349100349
- IRS Tax Exempt Organization Search for EIN 23-2828201
- 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.