| Sun Mountain Lumber, INC | Agriculture, Forestry, Fishing and Hunting | $1,613,600 | $1,571,393 | 167 | $17.1M |  Research |
| Powell County Memorial Hospital Association, Inc. | Health Care and Social Assistance | $1,383,947 | $1,364,245 | 120 | N/A | Research |
| Rock Creek Cattle Company, Ltd | Accommodation and Food Services | $660,800 | $667,933 | 185 | $57.8M | Research |
| Sun Mountain Logging, LLC | Agriculture, Forestry, Fishing and Hunting | $449,300 | $435,231 | 33 | <$5M | Research |
| Fickler Oil Company, Inc. | Retail Trade | $410,300 | $412,897 | 66 | $22.1M | Research |
| Ivy at Deer Lodge LLC | Health Care and Social Assistance | $300,615 | $302,661 | 32 | $5.4M | Research |
| Iron Pine Company LLC | Agriculture, Forestry, Fishing and Hunting | $142,134 | $142,477 | 8 | <$5M | Research |
| Iron Pine Company LLC | Agriculture, Forestry, Fishing and Hunting | $107,590 | $108,654 | 8 | <$5M | Research |
| Valley Foods, INC | Retail Trade | $103,664 | $104,387 | 24 | $6.0M | Research |
| Nielsen Veterinary Services Pllc | Professional, Scientific, and Technical Services | $99,287 | $99,985 | 16 | <$5M | Research |
| Mount Powell Tire Center Inc. | Retail Trade | $87,764 | $88,476 | 12 | <$5M | Research |
| Dustin Rubink, D.d.s. Corporation | Health Care and Social Assistance | $75,555 | $76,171 | 7 | <$5M | Research |
| Cypress Healthcare, LLC | Professional, Scientific, and Technical Services | $69,582 | $70,272 | 3 | <$5M | Research |
| Joyce Scharf | Accommodation and Food Services | $68,115 | $68,398 | 16 | <$5M | Research |
| Mcqueary & Porter Excavating, Inc. | Construction | $64,635 | $65,179 | 4 | <$5M | Research |
| Heli-Works Flight Services, LLC | Educational Services | $64,199 | $64,790 | 5 | <$5M | Research |
| Ranchers Agra Service, Inc. | Transportation and Warehousing | $61,023 | $61,492 | 12 | <$5M | Research |
| Powell County Museum and Arts Foundation | Arts, Entertainment, and Recreation | $59,192 | $59,698 | 10 | N/A | Research |
| Powell County Museum and Arts Foundation Inc. | Arts, Entertainment, and Recreation | $59,192 | $59,545 | 10 | N/A | Research |
| Broken Arrow Casino & Steak House | Accommodation and Food Services | $56,125 | $56,546 | 8 | <$5M | Research |
| Nhs Montana | Accommodation and Food Services | $55,769 | $56,235 | 11 | <$5M | Research |
| R&c Home Improvement, INC | Retail Trade | $54,628 | $55,012 | 10 | <$5M | Research |
| Fickler Distributing, Inc. | Accommodation and Food Services | $50,079 | $50,473 | 4 | <$5M | Research |
| Nhs Montana | Accommodation and Food Services | $39,900 | $40,115 | 19 | $5.9M | Research |
| Cottonwood Clinic LLC | Health Care and Social Assistance | $37,584 | $37,735 | 5 | <$5M | Research |