| Bergstrom Corporation | Retail Trade | $3,412,000 | $3,450,887 | 305 | $76.9M |  Research |
| Valley Management, Inc. | Accommodation and Food Services | $3,222,500 | $3,259,493 | 500 | $88.8M | Research |
| Galloway Company | Manufacturing | $2,633,000 | $2,663,865 | 114 | $40.2M | Research |
| Neuroscience Group of Northeast Wisconsin, S.c. | Professional, Scientific, and Technical Services | $2,509,000 | $2,364,565 | 152 | $31.6M | Research |
| Jack's Maintenance Service, INC | Administrative and Support and Waste Management | $2,485,200 | $2,514,194 | 430 | $93.1M | Research |
| Bergstrom Chevrolet-Buick-Cadillac, Inc. | Retail Trade | $2,371,000 | $2,398,023 | 256 | $64.5M | Research |
| Appleton Lathing Corporation | Construction | $2,333,400 | $2,314,250 | 114 | $28.8M | Research |
| Mcmahon Associates, Inc. | Professional, Scientific, and Technical Services | $2,033,000 | $2,056,775 | 132 | $16.3M | Research |
| Nercon Eng. & Mfg., Inc. | Manufacturing | $1,913,800 | $1,932,047 | 118 | $30.9M | Research |
| Sanderfoot Wind & Excavating INC | Construction | $1,497,978 | $1,505,611 | 90 | $20.8M | Research |
| Sanderfoot Wind & Excavating, Inc. | Construction | $1,497,900 | $1,507,667 | 141 | $32.6M | Research |
| Printron Engravers Inc. | Manufacturing | $1,234,845 | $1,250,980 | 86 | $85.3M | Research |
| First Source Worldwide, LLC | Manufacturing | $1,180,000 | $679,725 | 68 | $67.4M | Research |
| Kurz Electric Solutions, Inc. | Wholesale Trade | $1,163,500 | $1,174,466 | 81 | $24.8M | Research |
| Hot-Shot Express, Inc. | Transportation and Warehousing | $1,158,700 | $1,166,827 | 170 | $25.7M | Research |
| All-Lift Systems, Inc. | Retail Trade | $1,129,000 | $1,135,304 | 101 | $15.8M | Research |
| All-Lift Systems Inc. | Manufacturing | $1,076,947 | $1,081,315 | 83 | $21.7M | Research |
| Innovative Machining, LLC | Manufacturing | $1,036,200 | $1,044,206 | 82 | $20.0M | Research |
| Innovative Machining LLC | Manufacturing | $1,036,200 | $1,042,588 | 80 | $20.9M | Research |
| Wisconsin Institute of Urology S.c. | Health Care and Social Assistance | $1,034,200 | $1,041,879 | 93 | $18.5M | Research |
| Morton Drug Company, Inc. | Retail Trade | $1,032,000 | $1,041,861 | 112 | $19.5M | Research |
| St. Mary Catholic Schools | Educational Services | $970,000 | $977,356 | 113 | N/A | Research |
| Pack Air Inc. | Manufacturing | $952,080 | $957,634 | 66 | $17.3M | Research |
| Valley Vna Health Systems INC | Health Care and Social Assistance | $883,500 | $888,656 | 154 | N/A | Research |
| Pheifer Brothers Construction Co., Inc. | Construction | $845,000 | $852,582 | 55 | $17.0M | Research |