| Applied Ecological Services, INC | Professional, Scientific, and Technical Services | $1,980,240 | $1,995,752 | 170 | $17.6M |  Research |
| Decatur Dairy, Inc. | Manufacturing | $439,567 | $443,218 | 84 | $29.6M | Research |
| Maddrell Excavating, Llc. | Construction | $410,640 | $415,883 | 11 | <$5M | Research |
| Maddrell Excavating LLC | Construction | $401,305 | $403,256 | 27 | $10.1M | Research |
| Olin Oil Co INC | Retail Trade | $333,217 | $335,718 | 77 | $25.8M | Research |
| Olin Oil Co, Inc. | Retail Trade | $307,557 | $309,975 | 73 | $18.2M | Research |
| Woods Point Management Inc. | Health Care and Social Assistance | $276,007 | $277,852 | 50 | $8.5M | Research |
| Woods Point Management, Inc. | Health Care and Social Assistance | $275,524 | $278,211 | 59 | $10.0M | Research |
| Strunz Milk Transport, LLC | Transportation and Warehousing | $259,979 | $264,324 | 27 | <$5M | Research |
| Brodhead Veterinary Medical Center, LLC | Professional, Scientific, and Technical Services | $242,500 | $244,149 | 25 | <$5M | Research |
| The Bramble Company | Wholesale Trade | $240,342 | $242,211 | 20 | $6.1M | Research |
| The Bramble Company | Wholesale Trade | $233,739 | $234,914 | 11 | <$5M | Research |
| Computer Know How LLC | Retail Trade | $219,052 | $222,395 | 16 | <$5M | Research |
| Spring Grove Dairy | Agriculture, Forestry, Fishing and Hunting | $207,012 | $209,243 | 22 | <$5M | Research |
| Williams Bedrock Bovines, Inc. | Agriculture, Forestry, Fishing and Hunting | $204,000 | $206,392 | 25 | <$5M | Research |
| Brodhead Chevrolet Buick, LLC | Retail Trade | $203,286 | $205,737 | 27 | $6.8M | Research |
| Mcclaren Machine & Tool LLC | Manufacturing | $154,642 | $155,358 | 13 | <$5M | Research |
| Mcclaren Machine & Tool, LLC | Manufacturing | $152,850 | $153,989 | 13 | <$5M | Research |
| Pierce Furniture, Inc. | Retail Trade | $113,052 | $114,155 | 12 | <$5M | Research |
| Brodhead Auto Service LLC | Other Services (except Public Administration) | $75,467 | $76,127 | 11 | <$5M | Research |
| Kubly's Automotive LLC | Other Services (except Public Administration) | $73,300 | $73,660 | 8 | <$5M | Research |
| Two Lewis Concrete INC | Construction | $56,700 | $57,050 | 9 | <$5M | Research |
| Wenger Farms, LLC | Agriculture, Forestry, Fishing and Hunting | $54,794 | $55,319 | 21 | <$5M | Research |
| Body Crafters Auto Body Repair, Inc. | Other Services (except Public Administration) | $50,000 | $50,323 | 6 | <$5M | Research |
| Brodhead Hardware LLC | Retail Trade | $49,400 | $49,886 | 11 | <$5M | Research |