| Aitkin Community Hospital INC | Health Care and Social Assistance | $5,608,400 | $5,683,230 | 497 | N/A |  Research |
| Aicota Health Care Center INC | Health Care and Social Assistance | $949,465 | $954,951 | 126 | $21.4M | Research |
| Mille Lacs Energy Cooperative | Utilities | $936,700 | $941,904 | 47 | N/A | Research |
| American Peat Technology, LLC | Mining, Quarrying, and Oil and Gas Extraction | $633,000 | $636,815 | 46 | <$5M | Research |
| American Peat Technology LLC | Mining, Quarrying, and Oil and Gas Extraction | $596,330 | $600,790 | 40 | <$5M | Research |
| Aitkin Health Services | Health Care and Social Assistance | $594,565 | $597,774 | 63 | $10.7M | Research |
| Aitkin Auto Group, INC | Retail Trade | $466,900 | $470,494 | 36 | $9.1M | Research |
| Paulbecks INC | Retail Trade | $386,000 | $388,591 | 71 | $17.7M | Research |
| Garrison Disposal Company | Administrative and Support and Waste Management | $275,000 | $276,718 | 32 | $6.1M | Research |
| Central Minnesota Dental Partners Pllc | Health Care and Social Assistance | $199,633 | $200,764 | 24 | $5.6M | Research |
| Central Minnesota Dental Partners, Pllc | Health Care and Social Assistance | $199,600 | $200,969 | 24 | $5.6M | Research |
| The Office Shop INC | Retail Trade | $192,670 | $193,672 | 18 | <$5M | Research |
| Mille Lacs Wild Rice Corp | Agriculture, Forestry, Fishing and Hunting | $166,978 | $167,933 | 20 | <$5M | Research |
| Aitkin Motor Company | Retail Trade | $154,855 | $156,361 | 18 | <$5M | Research |
| Block North LLC | Accommodation and Food Services | $150,770 | $151,586 | 37 | $6.6M | Research |
| Kc Companies of Aitkin INC | Health Care and Social Assistance | $150,400 | $151,449 | 36 | $6.1M | Research |
| J & J Dagen, Inc. | Accommodation and Food Services | $149,167 | $150,472 | 17 | <$5M | Research |
| Gravelle Plumbing and Heating INC | Construction | $135,430 | $136,412 | 11 | <$5M | Research |
| Thompson | Construction | $132,000 | $132,879 | 15 | <$5M | Research |
| Rivers Edge Assisted Living Inc. | Health Care and Social Assistance | $131,100 | $132,076 | 28 | <$5M | Research |
| Thompson Excavating LLC | Construction | $127,772 | $128,524 | 12 | <$5M | Research |
| Lundberg Plumbing & Heating, Inc. | Construction | $126,000 | $126,865 | 11 | <$5M | Research |
| Aitkin Body Shop, INC | Other Services (except Public Administration) | $125,500 | $126,215 | 9 | <$5M | Research |
| Roadside Restaurants Incorporated | Accommodation and Food Services | $124,007 | $124,562 | 15 | <$5M | Research |
| Chuhanic INC | Accommodation and Food Services | $115,500 | $116,155 | 21 | <$5M | Research |