| Twin Cleaning Professionals, Inc. | Weschester | $915,785 | $924,567 | 220 | $34.6M |  AI Deep Dive |
| Complete Cleaning Company | Wood Dale | $908,900 | $916,525 | 99 | $21.4M | AI Deep Dive |
| Kramer Tree Specialists INC | West Chicago | $900,730 | $911,664 | 68 | $14.7M | AI Deep Dive |
| Rozalado & Co. | Chicago | $900,000 | $910,925 | 115 | $24.9M | AI Deep Dive |
| Staffing Technical Services INC | Wheaton | $900,000 | $909,750 | 30 | <$5M | AI Deep Dive |
| Nasaw/douglas and Associates Ltd. | Burr Ridge | $898,300 | $905,240 | 75 | $16.2M | AI Deep Dive |
| D & P Construction Co., Inc. | Chicago | $897,562 | $907,472 | 59 | $11.2M | AI Deep Dive |
| Just Payroll & Staffing Inc. | Barrington | $896,517 | $854,767 | 285 | $44.9M | AI Deep Dive |
| County Packaging INC | Crestwood | $894,675 | $901,857 | 64 | $12.1M | AI Deep Dive |
| Industrial Business Services | Bensenville | $893,058 | $904,121 | 118 | $18.6M | AI Deep Dive |
| Industrial Business Services LLC | Bensenville | $893,057 | $901,938 | 68 | $10.7M | AI Deep Dive |
| Barrington Pools, Inc. | South Barrington | $890,500 | $0 | 48 | $10.4M | AI Deep Dive |
| Steiner Security Services Inc. | Crestwood | $884,675 | $891,507 | 188 | $27.5M | AI Deep Dive |
| Thoreau Facility Services LLC | Romeoville | $883,600 | $895,529 | 110 | $23.8M | AI Deep Dive |
| Unifin, Inc. | Niles | $881,567 | $888,742 | 50 | $9.5M | AI Deep Dive |
| Synergy Global Systems INC | Libertyville | $879,020 | $886,606 | 160 | $25.2M | AI Deep Dive |
| Secureone, Inc. | Crestwood | $875,000 | $890,556 | 220 | $32.2M | AI Deep Dive |
| Protech Security Group Inc. | Lemont | $873,707 | $881,789 | 235 | $34.4M | AI Deep Dive |
| Applied Communications Group | Schaumburg | $868,215 | $876,439 | 46 | $6.7M | AI Deep Dive |
| Team Company | Edwardsville | $868,000 | $872,970 | 81 | $12.7M | AI Deep Dive |
| Schmechtig Landscape Company | Mundelein | $866,300 | $873,230 | 78 | $16.9M | AI Deep Dive |
| Cybersearch Ltd | Schaumburg | $859,828 | $866,612 | 32 | $5.0M | AI Deep Dive |
| System Research Incorporated | Schaumburg | $856,774 | $859,749 | 49 | $7.7M | AI Deep Dive |
| Systems Research Incorporated | Schaumburg | $856,700 | $863,696 | 49 | $7.7M | AI Deep Dive |
| Options Travel Services, Inc. | Mt Prospect | $851,270 | $857,347 | 60 | $19.0M | AI Deep Dive |