| Wight & Company | Professional, Scientific, and Technical Services | $3,287,480 | $3,332,592 | 187 | $58.0M |  Research |
| Gp Transportation Co. | Transportation and Warehousing | $2,356,300 | $2,377,834 | 217 | $43.7M | Research |
| Marketing Card Technology LLC | Manufacturing | $1,236,743 | $1,244,610 | 144 | $142.8M | Research |
| Troost Cemeteries, INC | Other Services (except Public Administration) | $818,169 | $827,828 | 69 | $13.2M | Research |
| Life Quotes, Inc. | Finance and Insurance | $803,400 | $808,265 | 75 | $38.5M | Research |
| University Dermatology and Vein Clinic, LLC | Health Care and Social Assistance | $711,700 | $719,928 | 27 | $8.5M | Research |
| Rapid Exchange, Inc. | Transportation and Warehousing | $500,000 | $504,889 | 25 | $9.7M | Research |
| Ekcc, Inc. | Transportation and Warehousing | $487,862 | $246,014 | 22 | <$5M | Research |
| Ras Data Services, Inc. | Other Services (except Public Administration) | $444,965 | $450,073 | 25 | <$5M | Research |
| Eva Investments, Inc. DBA Brookhaven Market Place | Unknown | $412,775 | $416,517 | 500 | N/A | Research |
| Dupage Pediatrics, Ltd. | Health Care and Social Assistance | $386,413 | $391,049 | 35 | $11.0M | Research |
| Single Source, Inc. | Wholesale Trade | $355,500 | $358,062 | 24 | $6.2M | Research |
| Francenter INC | Educational Services | $350,000 | $352,576 | 48 | N/A | Research |
| Premier Property Improvements Inc. | Construction | $341,300 | $12,622 | 1 | <$5M | Research |
| Sterling Services INC - Sae3049 | Other Services (except Public Administration) | $338,190 | $340,089 | 40 | $7.6M | Research |
| Sterling Services, INC | Other Services (except Public Administration) | $338,100 | $339,962 | 40 | $7.6M | Research |
| Society of the Little Flower | Other Services (except Public Administration) | $335,950 | $307,788 | 24 | N/A | Research |
| Patio Restaurant of Darien, Inc. | Accommodation and Food Services | $323,174 | $326,134 | 62 | $11.0M | Research |
| Kindredonore LLC | Administrative and Support and Waste Management | $314,900 | $318,845 | 62 | $9.8M | Research |
| Hayden and Company | Wholesale Trade | $311,500 | $313,335 | 19 | $5.8M | Research |
| Our Lady of Peace Parish (roman Catholic Diocese of Joliet) | Other Services (except Public Administration) | $306,700 | $310,708 | 48 | N/A | Research |
| Common Sense Solutions | Professional, Scientific, and Technical Services | $295,423 | $297,031 | 27 | $5.6M | Research |
| Forfar and Associates Oral Surgery Ltd. | Health Care and Social Assistance | $285,000 | $237,076 | 10 | <$5M | Research |
| Francenter INC | Educational Services | $282,267 | $283,576 | 39 | N/A | Research |
| Cattaneo Electric Co. | Construction | $267,467 | $270,237 | 11 | <$5M | Research |