| Menzner Lumber and Supply Company | Manufacturing | $3,483,000 | $3,522,506 | 467 | $463.2M |  Research |
| B & K Trucking, LLC | Transportation and Warehousing | $555,000 | $559,548 | 48 | $10.9M | Research |
| Brickner Motors Inc. | Retail Trade | $421,100 | $403,274 | 37 | $9.3M | Research |
| Lemke Industrial Machine LLC | Manufacturing | $336,200 | $339,422 | 20 | <$5M | Research |
| Hurtis Heating and Air INC | Wholesale Trade | $298,800 | $301,406 | 21 | $5.4M | Research |
| Aluminum Fabricated Products, | Manufacturing | $293,000 | $296,451 | 25 | $6.5M | Research |
| Aluminum Fabricated Products LLC | Manufacturing | $293,000 | $294,473 | 25 | $6.5M | Research |
| Morgan Sand & Gravel LLC | Construction | $270,900 | $272,601 | 12 | $13.7M | Research |
| Double P Dairy LLC | Agriculture, Forestry, Fishing and Hunting | $266,930 | $269,518 | 24 | <$5M | Research |
| Lemke Industrial Machine LLC | Manufacturing | $263,000 | $264,994 | 20 | <$5M | Research |
| Northview Window & Door LLC | Manufacturing | $261,090 | $262,947 | 25 | $7.0M | Research |
| Hurtis Heating & Air Conditioning, INC | Wholesale Trade | $257,500 | $301,074 | 21 | $5.4M | Research |
| Northview Window & Door, LLC | Manufacturing | $255,600 | $257,602 | 22 | $6.1M | Research |
| Marathon Feed and Grain, LLC | Retail Trade | $242,800 | $294,427 | 30 | <$5M | Research |
| Central Wisconsin Lumber, Inc. | Manufacturing | $212,047 | $213,313 | 17 | $16.9M | Research |
| Legacy Process Installations, LLC | Construction | $188,733 | $189,865 | 8 | <$5M | Research |
| Twin Forest Products, LLC | Agriculture, Forestry, Fishing and Hunting | $183,500 | $185,167 | 18 | <$5M | Research |
| Rent-A-Flash of Wisconsin, Inc. | Construction | $178,000 | $179,697 | 18 | $5.6M | Research |
| Custom Meats of Marathon, Inc. | Retail Trade | $154,000 | $155,283 | 18 | <$5M | Research |
| Dodson Auto II Ll | Retail Trade | $116,700 | $117,815 | 9 | <$5M | Research |
| M V Services INC | Construction | $113,300 | $114,452 | 10 | <$5M | Research |
| Draeger's Dairy Farm Inc. | Agriculture, Forestry, Fishing and Hunting | $107,944 | $109,032 | 14 | <$5M | Research |
| Jenks Jerseys LLC | Agriculture, Forestry, Fishing and Hunting | $101,000 | $101,556 | 14 | <$5M | Research |
| Marathon Industrial Finishing LLC | Manufacturing | $88,100 | $88,621 | 12 | $11.9M | Research |
| Kps Tool & Die Inc. | Manufacturing | $88,000 | $88,291 | 6 | <$5M | Research |