| American Nickeloid Company | Manufacturing | $2,216,785 | $2,241,564 | 156 | $38.1M |  Research |
| Horizon House of Illinois Valley, Inc. | Health Care and Social Assistance | $1,084,872 | $1,096,642 | 257 | N/A | Research |
| Papco Management Co INC | Accommodation and Food Services | $923,500 | $933,197 | 235 | $41.7M | Research |
| Chamlin & Associates Inc. Employee Stock Ownership Plan and | Professional, Scientific, and Technical Services | $895,448 | $900,746 | 46 | $5.7M | Research |
| River Docks, Inc. | Transportation and Warehousing | $824,370 | $831,643 | 28 | <$5M | Research |
| River Docks Inc. | Transportation and Warehousing | $824,370 | $829,858 | 23 | <$5M | Research |
| Saren Restaurants INC | Accommodation and Food Services | $789,308 | $794,504 | 320 | $56.8M | Research |
| The Benedictine Society of St. Bede | Educational Services | $593,500 | $597,176 | 59 | N/A | Research |
| Schimmer Ford Lincoln, Inc. | Retail Trade | $569,500 | $574,040 | 37 | $9.3M | Research |
| The Benedictine Society of St. Bede | Educational Services | $565,200 | $573,097 | 54 | N/A | Research |
| Jeff Perry Buick Gmc, Inc. | Retail Trade | $556,592 | $560,084 | 46 | $11.6M | Research |
| Jp Motors INC | Retail Trade | $448,600 | $451,199 | 45 | $11.3M | Research |
| Mertel Gravel Company, Inc. | Manufacturing | $437,356 | $441,454 | 18 | $17.9M | Research |
| Mertel Gravel Company Inc. | Manufacturing | $437,356 | $440,280 | 23 | $22.8M | Research |
| Creative Services Marketing & Mailing | Professional, Scientific, and Technical Services | $388,289 | $390,523 | 27 | <$5M | Research |
| Total Environmental Service Technologies | Utilities | $373,305 | $375,866 | 50 | N/A | Research |
| Illinois Valley Excavating Inc. | Construction | $361,548 | $363,657 | 17 | $6.4M | Research |
| Circle Transport, Inc. | Manufacturing | $343,426 | $345,872 | 15 | $14.9M | Research |
| Letterkraft Printers, Inc. | Manufacturing | $322,202 | $324,056 | 32 | $31.7M | Research |
| Bp Transportation, LLC | Transportation and Warehousing | $312,500 | $315,908 | 37 | $7.5M | Research |
| Illinois Valley Excavating, Inc. | Construction | $309,933 | $313,393 | 11 | <$5M | Research |
| A & B Auto Body Supply Inc. | Wholesale Trade | $302,722 | $304,454 | 38 | $9.8M | Research |
| Illinois Valley Container, INC | Manufacturing | $268,700 | $270,611 | 24 | $23.8M | Research |
| Elco Pro Ltd | Other Services (except Public Administration) | $257,363 | $258,921 | 29 | $5.5M | Research |
| Chapman's Mechanical Systems Inc. | Construction | $256,500 | $253,056 | 16 | $5.1M | Research |