| Installation Specialists, Inc. | Wholesale Trade | $9,498,017 | $9,609,092 | 239 | $73.2M |  Research |
| American Academy of Pediatrics | Health Care and Social Assistance | $8,141,900 | $10,113,699 | 250 | N/A | Research |
| Abcom Technology Group, Inc. | Administrative and Support and Waste Management | $5,857,100 | $3,637,587 | 448 | $84.7M | Research |
| Gift of Hope Organ %26 Tissue Donor Network | Health Care and Social Assistance | $5,436,627 | $0 | 311 | N/A | Research |
| National Safety Council | Other Services (except Public Administration) | $5,191,700 | $5,252,151 | 485 | N/A | Research |
| Paramedic Services of Illinois INC | Health Care and Social Assistance | $4,714,592 | $4,768,842 | 451 | $104.5M | Research |
| Diverzify+ LLC | Construction | $4,618,307 | $4,675,751 | 234 | $59.1M | Research |
| Henricksen & Company, Inc. | Wholesale Trade | $4,527,793 | $4,579,359 | 250 | $76.6M | Research |
| Family Entertainment Group Holding | Arts, Entertainment, and Recreation | $4,010,000 | $4,055,264 | 268 | $44.0M | Research |
| Computer Resource Solutions INC | Professional, Scientific, and Technical Services | $3,633,500 | $3,676,597 | 298 | $30.8M | Research |
| Mid-America Overseas INC | Transportation and Warehousing | $3,250,000 | $3,287,512 | 197 | $76.3M | Research |
| Walter E Smithe Furniture INC | Retail Trade | $3,157,707 | $3,194,635 | 295 | $53.5M | Research |
| Hamilton Partners INC | Real Estate and Rental and Leasing | $3,078,737 | $3,117,290 | 151 | $22.6M | Research |
| Fcl Builders LLC | Construction | $3,038,800 | $0 | 173 | $197.1M | Research |
| Kingsway America Inc. | Management of Companies and Enterprises | $2,868,000 | $311,966 | 163 | $26.8M | Research |
| Systems Unlimited, Inc. | Manufacturing | $2,639,200 | $2,669,135 | 103 | $27.0M | Research |
| Christ Panos Foods Corporation | Manufacturing | $2,514,200 | $2,264,485 | 146 | $51.5M | Research |
| Allmetal INC | Manufacturing | $2,440,837 | $2,469,010 | 213 | $52.1M | Research |
| The Rdi Group General Partnership | Manufacturing | $2,289,200 | $2,315,667 | 92 | $24.1M | Research |
| Continental Web Press INC | Manufacturing | $2,112,500 | $2,136,970 | 165 | $163.7M | Research |
| Continental Web Press INC | Manufacturing | $2,000,000 | $2,019,333 | 114 | $113.1M | Research |
| Installation Specialists Inc. | Wholesale Trade | $2,000,000 | $2,017,444 | 234 | $71.7M | Research |
| Henricksen & Company Inc. | Wholesale Trade | $2,000,000 | $2,009,944 | 257 | $78.7M | Research |
| National Safety Council | Other Services (except Public Administration) | $2,000,000 | $2,012,548 | 235 | N/A | Research |
| Abs Graphics, Inc. | Manufacturing | $1,972,700 | $1,991,292 | 134 | $132.9M | Research |