| South Central Fs, INC | Wholesale Trade | $3,794,100 | $3,837,627 | 303 | $78.0M |  Research |
| Koerner Distributor, Inc. | Wholesale Trade | $2,889,700 | $2,921,647 | 231 | $59.5M | Research |
| Kingery Printing Company | Manufacturing | $2,054,027 | $2,080,701 | 207 | $205.3M | Research |
| Peerless of America Ii, INC | Manufacturing | $1,187,400 | $1,201,942 | 94 | $24.6M | Research |
| Versatech, LLC | Management of Companies and Enterprises | $1,164,860 | $1,169,519 | 77 | $12.7M | Research |
| Mid-Illinois Concrete, Inc. | Manufacturing | $1,163,560 | $1,169,968 | 99 | $98.2M | Research |
| Versatech, LLC | Manufacturing | $1,146,185 | $1,152,770 | 82 | $20.0M | Research |
| Joint Active Systems,inc. | Wholesale Trade | $1,140,577 | $1,149,233 | 105 | $32.2M | Research |
| Joint Active Systems Inc. | Wholesale Trade | $1,140,577 | $1,147,264 | 91 | $27.9M | Research |
| Niemerg's Inc. | Accommodation and Food Services | $935,398 | $940,165 | 136 | $24.1M | Research |
| Grunloh Construction Inc. | Construction | $916,100 | $921,698 | 40 | $45.6M | Research |
| Grunloh Construction, Inc. | Construction | $904,970 | $911,833 | 95 | $108.2M | Research |
| Mid-Illinois Medical Care Associates | Health Care and Social Assistance | $893,288 | $898,402 | 135 | $42.4M | Research |
| Djk Enterprises LLC | Accommodation and Food Services | $882,000 | $888,640 | 128 | $40.0M | Research |
| J&j Ventures Amusements LLC | Arts, Entertainment, and Recreation | $788,675 | $748,356 | 80 | $11.2M | Research |
| Vantage Technology, LLC | Wholesale Trade | $781,200 | $786,564 | 56 | $17.2M | Research |
| Vantage Technology LLC | Wholesale Trade | $781,200 | $784,903 | 46 | $14.1M | Research |
| Dan Hecht Chevrolet, Inc. | Retail Trade | $775,597 | $780,746 | 87 | $23.5M | Research |
| Dust & Sons Auto Supplies, Inc. | Wholesale Trade | $753,740 | $759,543 | 114 | $34.9M | Research |
| Contractor's Concrete Inc. | Construction | $687,305 | $691,410 | 56 | $13.0M | Research |
| Crossroads Truck Equipment, Inc. | Other Services (except Public Administration) | $682,200 | $686,994 | 71 | $15.3M | Research |
| Direct Lines, Inc. | Transportation and Warehousing | $674,000 | $677,913 | 45 | $9.1M | Research |
| Linders Limited, LLC | Accommodation and Food Services | $668,700 | $673,518 | 195 | $34.6M | Research |
| Putnam Trucking Operations Company, INC | Transportation and Warehousing | $666,100 | $670,337 | 50 | $10.1M | Research |
| Willowbrook Management, Inc. | Health Care and Social Assistance | $665,600 | $670,481 | 99 | $16.8M | Research |