| Alta Via Consulting, LLC | Professional, Scientific, and Technical Services | $3,957,300 | $3,148,565 | 125 | $25.9M |  Research |
| Trinity Christian College Association | Educational Services | $3,264,724 | $3,302,631 | 330 | N/A | Research |
| Mike Ditka's - Chicago LLC | Accommodation and Food Services | $2,428,430 | $2,459,595 | 290 | $51.5M | Research |
| Mike Ditka's - Chicago LLC | Accommodation and Food Services | $2,000,000 | $2,024,767 | 156 | $27.7M | Research |
| Parkview Orthopaedic Group, Sc | Health Care and Social Assistance | $1,564,157 | $1,574,541 | 68 | $21.3M | Research |
| Southwest Chicago Christian School Association | Educational Services | $1,309,597 | $1,318,567 | 175 | N/A | Research |
| Wentworth Tire Service | Other Services (except Public Administration) | $856,205 | $861,390 | 78 | $15.3M | Research |
| Park Villa Nursing and Rehabilitation Center, LLC | Health Care and Social Assistance | $855,900 | $871,095 | 101 | $17.2M | Research |
| Oak Forest Bp, Inc. | Accommodation and Food Services | $717,216 | $724,169 | 182 | $32.3M | Research |
| Leadership Resources International | Other Services (except Public Administration) | $545,215 | $548,183 | 41 | N/A | Research |
| Plows Council On Aging | Health Care and Social Assistance | $514,700 | $518,889 | 71 | N/A | Research |
| Abusamra Transport Inc. | Transportation and Warehousing | $509,970 | $517,641 | 44 | $6.7M | Research |
| Begcom, LLC | Accommodation and Food Services | $447,284 | $450,837 | 57 | $10.1M | Research |
| George Skarpathiotis, M.d., S.c. | Health Care and Social Assistance | $400,443 | $404,447 | 37 | $11.6M | Research |
| Associated Cardiovascular Physicians, S.c. | Health Care and Social Assistance | $398,122 | $401,948 | 18 | $5.6M | Research |
| Municipal Collection Services, Inc. | Administrative and Support and Waste Management | $373,407 | $375,867 | 32 | $6.1M | Research |
| St. Alexander Church & School Catholic Bishop of Chicago | Other Services (except Public Administration) | $373,100 | $375,504 | 60 | N/A | Research |
| Calumet Decorating Service Inc. | Construction | $363,798 | $367,734 | 9 | <$5M | Research |
| Calumet Decorating Service Inc. | Construction | $360,360 | $363,055 | 37 | $9.3M | Research |
| Garelo LLC | Accommodation and Food Services | $348,328 | $351,482 | 39 | $6.9M | Research |
| Dahleen Inc. | Health Care and Social Assistance | $327,600 | $330,221 | 76 | $12.9M | Research |
| Hanco Enterprises, Inc. | Other Services (except Public Administration) | $315,700 | $274,894 | 57 | $10.9M | Research |
| Higgins & Associates | Health Care and Social Assistance | $310,630 | $313,710 | 21 | $6.6M | Research |
| Higgins and Associates P.c. | Health Care and Social Assistance | $310,630 | $311,881 | 35 | $11.0M | Research |
| Bpnl LLC | Accommodation and Food Services | $308,879 | $310,355 | 64 | $11.4M | Research |