| Name | Address, Zip |
| Adult & Teen Challenge Black Hills | 18048 Us Highway 14, 82729-9221 |
| Crook County Museum & Art Galley Foundation | Po Box 63, 82729-0063 |
| Crook County Fire Fighters Auxilliary | Po Box 488, 82729-0488 |
| Crook County Cares | Po Box 1121, 82729-1121 |
| Sundance Kids Childrens Center Inc | Po Box 684, 82729-0684 |
| Sundance Senior Citizen Center Inc | Po Box 1164, 82729-1164 |
| Crook County Cowboy Church | Po Box 293, 82729-0293 |
| Farrall Rural Club | 312 Farrall Rd, 82729-9520 |
| Crook Co Council Of County Services | Po Box 1381, 82729-1381 |
| The Cone Family Foundation | 141 Broad Axe Rd, 82729-9593 |
| Powder River Energy Corporationfoundation Inc | Po Box 930, 82729-0930 |
| Crook County Museum District | 120 N 4th St, 82729-5033 |
| Crook County Medical Services District Foundation Inc | Po Box 532, 82729-0532 |
| Crook County Library Foundation Inc | Po Box 910, 82729-0910 |
| Crook County Senior Services Incorporated | Po Box 648, 82729-0648 |
| George E White Foundation | 18 Hwy 116, 82729 |
| Focus | Po Box 128, 82729-0128 |
| Wsta Foundation | Po Box 436, 82729-0436 |
| Kid Prints Inc | Po Box 1453, 82729-1453 |
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