| Brightstar Group Holdings INC | Health Care and Social Assistance | $2,815,235 | $2,847,610 | 239 | $40.9M |  Research |
| Tempsnow Employment & Placement Services, LLC | Administrative and Support and Waste Management | $2,346,483 | $2,373,272 | 316 | $49.7M | Research |
| Tablecraft Products Company Inc. | Manufacturing | $1,975,625 | $1,995,217 | 92 | $22.5M | Research |
| Tablecraft Products Company INC | Manufacturing | $1,975,600 | $1,997,222 | 91 | $22.2M | Research |
| William a Randolph Inc. | Construction | $1,892,440 | $1,914,203 | 70 | $79.8M | Research |
| William a Randolph INC | Construction | $1,892,440 | $1,903,584 | 69 | $78.6M | Research |
| Joseph J Henderson and Son INC | Construction | $1,595,600 | $1,606,415 | 77 | $87.7M | Research |
| Top-Ten Express, Corporation | Transportation and Warehousing | $1,517,670 | $70,805 | 108 | $21.8M | Research |
| Eirich Machines, Inc. | Manufacturing | $1,396,000 | $1,404,185 | 80 | $19.6M | Research |
| Averus Inc. | Other Services (except Public Administration) | $1,388,197 | $1,398,840 | 132 | $28.4M | Research |
| Averus, Inc. | Other Services (except Public Administration) | $1,344,200 | $1,354,954 | 174 | $37.4M | Research |
| Legat Architects, Inc. | Professional, Scientific, and Technical Services | $1,342,500 | $1,359,691 | 75 | $23.3M | Research |
| Legat Architects INC | Professional, Scientific, and Technical Services | $1,342,500 | $1,358,535 | 77 | $23.9M | Research |
| Gallagher Corporation | Manufacturing | $1,277,500 | $1,293,288 | 101 | $100.2M | Research |
| Rohr-Gurnee Motors, Inc. | Retail Trade | $975,000 | $986,307 | 55 | $13.9M | Research |
| Gurnee Motors Inc. | Retail Trade | $974,582 | $980,472 | 86 | $21.7M | Research |
| Gurnee Motors INC | Retail Trade | $968,162 | $979,943 | 86 | $21.7M | Research |
| Kloss Distributing Co., Inc. | Wholesale Trade | $940,377 | $953,386 | 85 | $21.9M | Research |
| Anthony Buick Gmc Inc. | Retail Trade | $852,300 | $857,671 | 75 | $18.9M | Research |
| Anthony Buick Gmc, Inc. | Retail Trade | $852,200 | $859,741 | 75 | $18.9M | Research |
| Olson Transportation Inc. | Transportation and Warehousing | $823,799 | $955,647 | 95 | $36.5M | Research |
| Olson Transportation, Inc. | Transportation and Warehousing | $814,930 | $194,901 | 10 | <$5M | Research |
| Quality Catering for Kids Inc. | Accommodation and Food Services | $749,200 | $750,644 | 71 | $13.3M | Research |
| Abb Dental Group LLC | Health Care and Social Assistance | $728,534 | $734,542 | 64 | $14.8M | Research |
| Abb Dental Group, LLC | Health Care and Social Assistance | $716,447 | $720,491 | 49 | $11.4M | Research |