| Rest Haven Illiana Christian Convalescent Home | Health Care and Social Assistance | $4,733,890 | $4,792,538 | 497 | $84.6M |  Research |
| Proven Business Systems, LLC | Real Estate and Rental and Leasing | $3,591,453 | $3,634,749 | 71 | $32.1M | Research |
| Bettenhausen Motor Sales, Inc. | Retail Trade | $3,160,348 | $3,196,955 | 244 | $61.5M | Research |
| Michuda Construction, Inc. | Construction | $2,986,302 | $3,026,963 | 91 | $103.7M | Research |
| C.d.e Body Shop II INC | Other Services (except Public Administration) | $2,288,135 | $2,327,645 | 168 | $32.9M | Research |
| International Imports, LLC | Retail Trade | $2,088,940 | $2,113,165 | 198 | $49.9M | Research |
| C.d.e Body Shop II INC | Other Services (except Public Administration) | $2,000,000 | $2,020,611 | 200 | $39.2M | Research |
| Proven Business Systems LLC | Real Estate and Rental and Leasing | $2,000,000 | $2,013,000 | 260 | $117.5M | Research |
| St. Coletta's of Illinois | Health Care and Social Assistance | $1,800,000 | $1,811,100 | 300 | N/A | Research |
| Galfab Holdings Inc. | Manufacturing | $1,730,000 | $1,739,242 | 111 | $29.1M | Research |
| Hematogenix Laboratory Services LLC | Health Care and Social Assistance | $1,682,625 | $1,705,060 | 113 | $26.2M | Research |
| Hematogenix Laboratory Services LLC | Health Care and Social Assistance | $1,682,625 | $1,700,666 | 115 | $26.6M | Research |
| Providence Operations, LLC | Health Care and Social Assistance | $1,440,375 | $1,449,017 | 184 | $31.3M | Research |
| Roberts Environmental Control Corp. | Construction | $1,433,800 | $1,449,811 | 49 | $55.8M | Research |
| Timothy Place, Nfp | Health Care and Social Assistance | $1,377,500 | $1,385,727 | 231 | N/A | Research |
| American Sales Corp | Manufacturing | $1,360,700 | $1,374,158 | 159 | $41.6M | Research |
| Midway Contracting Group, LLC | Construction | $1,304,918 | $1,322,043 | 130 | $44.3M | Research |
| Harp Management, LLC | Accommodation and Food Services | $1,278,006 | $1,291,106 | 154 | $48.2M | Research |
| Rizza Buick Gmc Cadillac, Inc. | Retail Trade | $1,248,055 | $1,257,450 | 91 | $22.9M | Research |
| Atlas Putty Products Company | Manufacturing | $1,225,808 | $1,240,721 | 118 | $117.0M | Research |
| Providence Management and Development Company Incorporated | Health Care and Social Assistance | $1,209,997 | $1,221,391 | 71 | $12.1M | Research |
| U.s. Minerals, Inc. | Manufacturing | $1,136,000 | $1,140,168 | 82 | $81.3M | Research |
| Midway Contracting Group LLC | Construction | $1,133,300 | $1,148,887 | 102 | $34.8M | Research |
| Watson Family Hyundai, INC | Retail Trade | $1,077,215 | $1,087,538 | 92 | $23.2M | Research |
| Alpha Med Pysicians Group LLC | Health Care and Social Assistance | $1,062,500 | $1,075,368 | 81 | $25.4M | Research |