| Catholic Charities of the Diocese of Joliet, Inc. | Health Care and Social Assistance | $2,368,720 | $1,481,156 | 258 | N/A |  Research |
| Low Voltage Solutions Inc. | Construction | $2,194,700 | $2,219,894 | 107 | $35.2M | Research |
| Roman Catholic Diocese of Joliet | Other Services (except Public Administration) | $1,695,638 | $1,712,924 | 126 | N/A | Research |
| Conveyor Specialties Inc. | Construction | $1,691,221 | $1,698,503 | 119 | $40.5M | Research |
| Conveyor Specialties, INC | Construction | $1,691,200 | $1,708,958 | 25 | $8.0M | Research |
| Work Zone Safety, Inc. | Construction | $900,000 | $909,814 | 36 | $11.2M | Research |
| Cci Flooring INC | Construction | $815,421 | $822,239 | 32 | $8.1M | Research |
| Cci Flooring INC | Construction | $811,000 | $819,190 | 27 | $6.8M | Research |
| Filotto Construction INC - Faa6471 | Construction | $585,927 | $591,465 | 24 | $7.9M | Research |
| Len Cox & Sons Excavating | Construction | $507,560 | $510,972 | 25 | $9.4M | Research |
| Kru's Delivery Services Inc. | Accommodation and Food Services | $500,000 | $394,734 | 95 | $17.7M | Research |
| Len Cox & Sons Excavating | Construction | $494,223 | $498,876 | 29 | $10.9M | Research |
| Merichka's - Mac3959 | Accommodation and Food Services | $485,730 | $488,378 | 68 | $12.1M | Research |
| Filotto Construction, Inc. | Construction | $478,300 | $481,956 | 36 | $11.9M | Research |
| Tlc Ingredients INC | Wholesale Trade | $476,035 | $481,983 | 23 | $5.9M | Research |
| El Guero De Crest Hill INC | Unknown | $462,921 | $470,011 | 92 | N/A | Research |
| Advanced Physicians, Sc | Health Care and Social Assistance | $424,432 | $427,804 | 38 | $6.9M | Research |
| Advanced Physicians S.c. | Health Care and Social Assistance | $424,432 | $426,696 | 41 | $7.5M | Research |
| Belisle Construction INC | Construction | $394,700 | $399,004 | 18 | $20.5M | Research |
| Belisle Construction INC | Construction | $379,101 | $381,303 | 17 | $19.4M | Research |
| Merichka's, INC | Accommodation and Food Services | $345,600 | $347,711 | 76 | $13.5M | Research |
| Fab Werks INC | Manufacturing | $322,700 | $324,592 | 30 | $7.9M | Research |
| Dynamic Engineering and Management Inc. | Professional, Scientific, and Technical Services | $300,347 | $301,795 | 14 | <$5M | Research |
| Dynamic Engineering and Management | Professional, Scientific, and Technical Services | $292,257 | $295,340 | 20 | <$5M | Research |
| Joliet Pattern Works, INC | Manufacturing | $242,027 | $242,988 | 25 | $24.8M | Research |