| Kaluzny Bros. Inc. | Manufacturing | $1,340,272 | $1,221,309 | 48 | $47.6M |  AI Deep Dive |
| Ibuilders Corp. | Construction | $1,300,885 | $1,317,254 | 128 | $38.9M | AI Deep Dive |
| 1985788010 | Health Care and Social Assistance | $1,272,929 | $1,294,412 | 144 | $24.5M | AI Deep Dive |
| Priority Staffing Ltd | Administrative and Support and Waste Management | $1,176,935 | $1,183,408 | 73 | $11.5M | AI Deep Dive |
| Josco Construction Services, Inc. | Construction | $1,169,613 | $1,186,820 | 79 | $90.0M | AI Deep Dive |
| Josco Construction Services INC | Construction | $1,169,613 | $1,185,186 | 79 | $24.5M | AI Deep Dive |
| Kidney Care Center Management LLC | Health Care and Social Assistance | $1,147,400 | $1,160,340 | 97 | $30.4M | AI Deep Dive |
| Priority Staffing, Ltd | Administrative and Support and Waste Management | $1,122,888 | $1,135,894 | 41 | $6.5M | AI Deep Dive |
| P.f.a. Systems, Inc. | Transportation and Warehousing | $1,115,123 | $1,124,881 | 61 | $9.2M | AI Deep Dive |
| Prima Express INC | Transportation and Warehousing | $1,093,700 | $1,101,174 | 80 | $18.2M | AI Deep Dive |
| West Surburban Auto Plaza , Inc. | Retail Trade | $1,063,957 | $1,078,641 | 96 | $24.2M | AI Deep Dive |
| West Suburban Auto Plaza Inc. | Retail Trade | $1,042,965 | $1,054,322 | 96 | $24.2M | AI Deep Dive |
| Joliet Catholic Academy | Educational Services | $1,031,828 | $1,038,678 | 90 | N/A | AI Deep Dive |
| Cb Industries, Inc. | Construction | $1,013,831 | $1,026,645 | 48 | $14.6M | AI Deep Dive |
| Cb Industries Inc. | Construction | $1,013,831 | $1,021,209 | 46 | $14.0M | AI Deep Dive |
| Demark, Inc. | Professional, Scientific, and Technical Services | $1,005,800 | $1,006,611 | 47 | $5.8M | AI Deep Dive |
| Natural Creations Landscaping Inc. | Administrative and Support and Waste Management | $954,025 | $966,624 | 78 | $16.9M | AI Deep Dive |
| Construction by Camco Inc. | Construction | $935,200 | $940,551 | 35 | $10.8M | AI Deep Dive |
| Advanced Urology Associates | Health Care and Social Assistance | $924,495 | $929,734 | 73 | $14.5M | AI Deep Dive |
| Young Mens Christian Association Joliet | Health Care and Social Assistance | $905,994 | $914,656 | 292 | N/A | AI Deep Dive |
| Elens and Maichin Roofing and Sheet Metal, Inc. | Manufacturing | $899,900 | $905,299 | 40 | $9.8M | AI Deep Dive |
| Our Lady of Angels Retirement Home | Health Care and Social Assistance | $874,798 | $879,439 | 157 | N/A | AI Deep Dive |
| Cryer & Olsen Mechanical Inc. | Construction | $868,968 | $875,847 | 50 | $15.8M | AI Deep Dive |
| Blue Ribbon Products Co. | Wholesale Trade | $863,800 | $815,990 | 50 | $12.9M | AI Deep Dive |
| Associated Orthodontists, Ltd | Health Care and Social Assistance | $860,260 | $870,511 | 70 | $16.2M | AI Deep Dive |