| Plote Construction INC | Construction | $8,619,420 | $8,719,075 | 271 | $84.0M |  Research |
| Leonardo Construction INC | Professional, Scientific, and Technical Services | $7,493,003 | $7,580,421 | 282 | $29.2M | Research |
| Vistex, Inc. | Professional, Scientific, and Technical Services | $6,186,990 | $6,269,181 | 399 | $55.9M | Research |
| Focus Core Inc. | Professional, Scientific, and Technical Services | $3,125,000 | $2,229,672 | 98 | $10.1M | Research |
| Planmeca Usa, INC | Wholesale Trade | $2,944,900 | $2,983,627 | 170 | $52.1M | Research |
| Clinical Computer Systems, Inc. | Professional, Scientific, and Technical Services | $2,575,200 | $2,604,550 | 146 | $30.2M | Research |
| Zeigler Hoffman Estates I, LLC | Retail Trade | $2,417,500 | $1,564,283 | 60 | $15.1M | Research |
| W-T Engineering INC | Professional, Scientific, and Technical Services | $2,303,765 | $2,330,258 | 157 | $19.4M | Research |
| Visionary Sleep LLC | Manufacturing | $2,289,200 | $2,315,165 | 173 | $45.3M | Research |
| W-T Engineering INC | Professional, Scientific, and Technical Services | $2,000,000 | $2,019,056 | 143 | $17.6M | Research |
| Visionary Sleep LLC | Manufacturing | $2,000,000 | $2,015,616 | 257 | $90.7M | Research |
| Bridge Personnel Services Corp. | Administrative and Support and Waste Management | $1,709,500 | $1,724,886 | 150 | $23.6M | Research |
| Tekserve Pos LLC | Professional, Scientific, and Technical Services | $1,474,400 | $1,482,945 | 120 | $24.8M | Research |
| High Voltage Software, Inc. | Information | $1,307,900 | $1,315,138 | 100 | $16.8M | Research |
| Synergy Behavioral Healthcare, LLC | Health Care and Social Assistance | $1,208,300 | $1,222,598 | 68 | $21.3M | Research |
| Woodfield Nissan Inc. | Retail Trade | $1,204,330 | $1,212,125 | 54 | $13.6M | Research |
| Woodfield Nissan Inc. | Retail Trade | $1,204,330 | $1,216,440 | 54 | $13.6M | Research |
| Thomas Engineering LLC | Manufacturing | $1,138,330 | $1,142,441 | 84 | $22.0M | Research |
| Thomas Engineering Llc. | Manufacturing | $1,138,300 | $1,145,812 | 67 | $17.5M | Research |
| Only It Consulting LLC | Professional, Scientific, and Technical Services | $1,086,265 | $1,102,455 | 85 | $17.6M | Research |
| Only It Consulting LLC | Professional, Scientific, and Technical Services | $1,086,264 | $1,094,628 | 85 | $8.8M | Research |
| Gold Rush Amusements, Inc. | Arts, Entertainment, and Recreation | $1,007,392 | $997,601 | 120 | $16.8M | Research |
| Valli Produce of Hoffman Estates INC | Retail Trade | $1,000,084 | $1,010,057 | 119 | $29.7M | Research |
| Gold Rush Amusements INC | Arts, Entertainment, and Recreation | $987,343 | $996,037 | 122 | $17.1M | Research |
| Divihn Integration, Inc. | Professional, Scientific, and Technical Services | $924,539 | $931,216 | 51 | $10.5M | Research |