William Townsend Porter Foundation Inc
Grantmaking foundation in Boston, Massachusetts · EIN 04-2104293
- Grants itemized on the 990
- $180KTax year 2026
- Grants made
- 4Tax year 2026
- Total assets
- $4.4MLatest reported
- Latest IRS filing
- 2026Form 990 / 990-PF
Giving by year
Totals by tax year, rounded to two significant figures. Years without a reported total show the sum of grants itemized on the filing.
Top recipients
| Recipient | Amount | Tax year |
|---|---|---|
| American Physiological Society | $140K | 2026 |
| Marine Biological Laboratory | $17K | 2026 |
| University of Louisville Research Foundation | $10K | 2026 |
| The Board of Trustees of the Leland Stanford Junior University | $9.1K | 2026 |
Amounts are rounded. The full grantee list (4 grants in 2026) is available with a free account.
Website: williaminc.com
See the full profile. All grants with amounts and years, board and officers, contact details, giving patterns and your organization's fit score are available with a free GrantAuthority account.
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Source: IRS Form 990 and 990-PF filings, tax year 2026. Also see this organization on ProPublica Nonprofit Explorer.