| Name | Deductibility Code |
| Mount Vernon Chapter Military Officers Association of America | 6 |
| Mount Vernon Chapter of the Military Officers Association of | -- |
| Mount Vernon Crew Boosters Inc. | -- |
| Mount Vernon High School Band Boosters Inc. | -- |
| Mount Vernon Ladies Association of the Union | -- |
| The Mount Vernon Rotary Club Foundation | -- |
| United Engineering Foundation Inc. | -- |
| Washington Metropolitan Philharmonic Association | -- |