| Business | Phone |
| Tribal Council Rep Office Mandaree 58757 | (701) 759-3377 |
| Three Tribes Aging Svc Po Box 624, Mandaree 58757 | (701) 759-3415 |
| Three Tribes Buffalo Project Mandaree 58757 | (701) 759-3264 |
| Three Tribes Figure 4 Ranch Mandaree 58757 | (701) 759-3176 |
| Three Tribes Fire Management Mandaree 58757 | (701) 759-3124 |
| Three Tribes Solid Surface Co Mandaree 58757 | (701) 759-3576 |
| Mandaree Field Clinic Mandaree Clinic, Mandaree 58757 | (701) 759-3422 |