The Louis Foundation
Historical FunderCambridge, Massachusetts · EIN 42-6660492 · Private foundation
Half of its grants to organizations were between $1,000 and $20,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | LANGDON B WHEELER |
|---|---|
| Address | 48 LAKE VIEW AVENUE, CAMBRIDGE MA 02138 |
| Phone | 6173544047 |
| Form and materials | WRITE TO ADDRESS ABOVE |
| Deadlines | WRITE TO ADDRESS ABOVE |
| Restrictions | 501(C)(3) PUBLIC CHARITIES REGISTERED IN MASSACHUSETTS |
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
61% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Seattle Children's Hospital | Seattle, WA | Charitable | $333,333 |
| Johns Hopkins | Baltimore, MD | Charitable | $29,000 |
| Boston Childrens Hospital | Boston, MA | Charitable | $25,000 |
| Epiphany School | Boston, MA | Charitable | $20,000 |
| Vt Public | Colchester, VT | Charitable | $10,000 |
| Wgbh Educational Foundation | Boston, MA | Charitable | $10,000 |
| Mfa Patron | Boston, MA | Charitable | $4,000 |
| Sponsor Inc | Framingham, MA | Charitable | $3,000 |
| Skidmore College | Saratoga Springs, NY | Charitable | $2,500 |
| Pine Cay Project | Lima, OH | Charitable | $1,000 |
| Planned Parenthood | New York, NY | Charitable | $1,000 |
| Yale Class of 69 Dues | New Haven, CT | Charitable | $500 |
| Shaftsbury Historical Society | Shaftsbury, VT | Charitable | $160 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $439,493 | 13 |
| 2024 | $163,555 | 31 |
| 2023 | $812,445 | 54 |
Sources
- IRS Form 990-PF, tax year 2025, filed Mar 31, 2026 - IRS e-file batch, object ID 202600909349100800
- IRS Tax Exempt Organization Search for EIN 42-6660492
- 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.