| Name | Deductibility Code |
| Beito Foundation | 4 |
| Community Church | -- |
| Cornerstone Christian School | -- |
| Discovery Place | -- |
| Dondelinger Foundation | 4 |
| Eagles View Church and Outreach Center | -- |
| Falls Day Activities Center | -- |
| Falls Delivered Meals | -- |
| Heritage Community Ctr Inc. | -- |
| Life Care Center of Thief River Falls | -- |
| Northland Community College Foundation | -- |
| Northwest Managerial Services Corporation | -- |
| Northwest Medical Center Auxiliary | -- |
| Occupational Development Center Inc. | -- |
| Pennington County Humane Society | -- |
| Pennington Health Services | -- |
| River of Life Church of Thief River Falls Inc. | -- |
| Thief River Falls Amateur Hockey Association | -- |
| Thief River Falls Athletic Association | -- |
| Thief River Falls Backcourt Club | -- |
| Thief River Falls Baseball Association | -- |
| Thief River Falls Community Arts Council | -- |
| Thief River Falls Education Foundation | -- |
| Thief River Falls Foundation | 4 |
| Thief River Falls Soccer Association | -- |
| Thief River Falls Swin Team | -- |
| Thief River Falls United Fund Inc. | -- |
| Valley Home Society | -- |
| Violence Intervention Project Inc. | -- |