| Patrick Engineering Inc. | Professional, Scientific, and Technical Services | $5,601,200 | $5,683,195 | 312 | $38.5M |  Research |
| Optimum Staffing, Inc. | Administrative and Support and Waste Management | $4,174,910 | $4,235,910 | 455 | $71.6M | Research |
| Footprint Acquisition LLC | Transportation and Warehousing | $4,138,292 | $4,167,720 | 500 | $193.7M | Research |
| The Morton Arboretum | Arts, Entertainment, and Recreation | $3,505,600 | $3,545,914 | 331 | N/A | Research |
| Ray Graham Association for People With Disabilities | Other Services (except Public Administration) | $3,199,300 | $3,245,812 | 250 | N/A | Research |
| Volvo Sales & Service Center, INC | Retail Trade | $3,194,587 | $3,236,330 | 292 | $73.6M | Research |
| Benet Academy | Educational Services | $2,317,800 | $2,347,738 | 199 | $23.9M | Research |
| Endotronix, Inc. | Manufacturing | $2,309,498 | $2,336,186 | 86 | $24.0M | Research |
| Volvo Sales & Service Center Inc. | Retail Trade | $2,000,000 | $2,022,377 | 292 | $73.6M | Research |
| Compusystems Inc. | Administrative and Support and Waste Management | $2,000,000 | $2,033,589 | 86 | $16.3M | Research |
| Omega and Associates, Inc. | Professional, Scientific, and Technical Services | $1,889,600 | $1,910,910 | 80 | $9.9M | Research |
| Itg Transportation Services INC | Transportation and Warehousing | $1,701,800 | $1,585,930 | 106 | $16.0M | Research |
| Aptude, Inc. | Professional, Scientific, and Technical Services | $1,533,700 | $1,554,668 | 101 | $20.9M | Research |
| Dealer E Process, LLC | Professional, Scientific, and Technical Services | $1,492,200 | $1,506,873 | 129 | $26.7M | Research |
| First Class Valet | Transportation and Warehousing | $1,301,960 | $1,306,553 | 291 | $282.3M | Research |
| Precision Control Systems of Chicago, Inc. | Construction | $1,287,200 | $1,298,132 | 54 | $17.8M | Research |
| Precision Control Systems of Chicago INC | Construction | $1,287,200 | $1,297,110 | 54 | $17.8M | Research |
| US Fiduciary Services, Inc. | Finance and Insurance | $1,261,432 | $1,275,062 | 85 | $43.7M | Research |
| Cellcontrol | Professional, Scientific, and Technical Services | $1,222,000 | $1,230,384 | 81 | $16.8M | Research |
| Cy, LLC | Professional, Scientific, and Technical Services | $1,183,135 | $1,196,610 | 47 | <$5M | Research |
| Cy LLC | Professional, Scientific, and Technical Services | $1,102,850 | $1,110,019 | 36 | <$5M | Research |
| Water Quality Association | Other Services (except Public Administration) | $1,074,010 | $1,079,261 | 65 | N/A | Research |
| Integrated Inventory Technology, INC | Information | $961,500 | $970,852 | 59 | $9.9M | Research |
| Westerkamp Group, L.l.c. | Professional, Scientific, and Technical Services | $905,226 | $910,549 | 93 | $9.6M | Research |
| Vector Business Group Corp | Accommodation and Food Services | $900,000 | $910,756 | 280 | $49.7M | Research |