The Mark and Anne Hansen Foundation
Historical FunderWashington, District of Columbia · EIN 20-5794944 · Private foundation
Half of its grants to organizations were between $1,000 and $50,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | TRUSTEE CO THE MARK AND ANNE HANSEN |
|---|---|
| Address | 1615 M STREET NW SUITE 400, WASHINGTON DC 20036 |
| Phone | 8778295500 |
| Form and materials | N/A |
| Deadlines | NONE |
| Restrictions | NONE |
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
68% of grants went outside District of Columbia.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| University School of Milwaukee | Milwaukee, WI | Donation | $125,000 |
| Lacrosse Central Alumni Foundation | LA Crosse, WI | Donation | $100,000 |
| Middlebury College | Middlebury, VT | Donation | $100,000 |
| Bishop John T Walker School Fund | Washington, DC | Donation | $50,000 |
| John F Kennedy Center for the Performing Arts | Washington, DC | Donation | $50,000 |
| Bates College | Lewiston, ME | Donation | $43,200 |
| Door County Land Trust | Sturgeon Bay, WI | Donation | $20,000 |
| Association of Women Surgeons | Chicago, IL | Donation | $10,000 |
| Humane Pennsylvania | Reading, PA | Donation | $10,000 |
| Sundance Institute | Park City, UT | Donation | $10,000 |
| Wellesley College | Wellesley, MA | Donation | $5,000 |
| Friends of the Smithsonian | Washington, DC | Donation | $2,794 |
| Gifts for the Homeless | Washington, DC | Donation | $1,000 |
| YMCA | Sturgeon Bay, WI | Donation | $1,000 |
| Penfaulkner | Washington, DC | Donation | $500 |
| Swan Ball Initiative | Nashville, TN | Donation | $250 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $528,744 | 16 |
| 2023 | $518,024 | 14 |
| 2022 | $443,100 | 10 |
Sources
- IRS Form 990-PF, tax year 2024, filed Feb 16, 2026 - IRS e-file batch, object ID 202600479349100900
- IRS Tax Exempt Organization Search for EIN 20-5794944
- 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.