| Imi Management, INC | Construction | $8,251,700 | $8,358,972 | 279 | $88.3M |  Research |
| Mhf Holdings INC | Wholesale Trade | $5,105,160 | $5,164,883 | 347 | $106.3M | Research |
| Estel Foods INC | Accommodation and Food Services | $2,678,100 | $2,709,865 | 250 | $44.4M | Research |
| Baily International, Inc. | Wholesale Trade | $2,484,600 | $2,642,855 | 365 | $94.0M | Research |
| Totall Metal Recycling Inc. | Wholesale Trade | $1,949,000 | $1,962,616 | 147 | $45.0M | Research |
| Totall Metal Recycling, Inc. | Wholesale Trade | $1,935,900 | $1,957,464 | 167 | $51.2M | Research |
| The Glik Company | Retail Trade | $1,783,600 | $1,794,253 | 487 | $147.3M | Research |
| Walters Metal Fabrication INC | Manufacturing | $1,266,390 | $1,275,827 | 265 | $64.8M | Research |
| Walters Metal Fabrication INC | Manufacturing | $1,259,230 | $1,273,754 | 56 | $13.7M | Research |
| Iew, Inc. | Other Services (except Public Administration) | $1,168,880 | $1,180,244 | 69 | $14.8M | Research |
| Weber Granite City Chevrolet Company | Retail Trade | $1,121,800 | $1,128,842 | 79 | $19.9M | Research |
| Arnette Pattern Company, INC | Manufacturing | $1,004,600 | $1,010,432 | 69 | $18.1M | Research |
| Kamadulski Excavating & Grading, Inc. | Construction | $945,300 | $956,696 | 40 | $15.0M | Research |
| Weber Granite City Ford Company | Retail Trade | $849,100 | $854,430 | 61 | $15.4M | Research |
| Metro Marble & Granite LLC | Manufacturing | $843,620 | $853,050 | 60 | $59.5M | Research |
| Juneau Associates Inc. PC | Professional, Scientific, and Technical Services | $715,100 | $721,377 | 49 | $6.0M | Research |
| Metro Marble and Granite LLC | Manufacturing | $665,373 | $670,331 | 265 | $262.8M | Research |
| Coyle Mechanical Supply, INC | Wholesale Trade | $519,000 | $521,126 | 36 | $11.0M | Research |
| Supplied Industrial Solutions, Inc. | Wholesale Trade | $507,900 | $511,796 | 30 | $7.7M | Research |
| Ravanellis Edwards & Bush Inc. | Accommodation and Food Services | $482,700 | $487,302 | 30 | $5.3M | Research |
| Active Holdings Group Inc. | Administrative and Support and Waste Management | $418,190 | $422,047 | 24 | <$5M | Research |
| Active Holdings Group, Inc. | Administrative and Support and Waste Management | $381,600 | $386,540 | 37 | $7.0M | Research |
| Operating Engineers Local 520 - O600046 | Other Services (except Public Administration) | $363,672 | $366,751 | 8 | N/A | Research |
| Scott Jennings | Wholesale Trade | $355,300 | $356,497 | 33 | $10.1M | Research |
| Ravanelli, Edwards & Bush, Inc. | Accommodation and Food Services | $344,800 | $349,306 | 90 | $16.0M | Research |