| Perfection Spring & Stamping Corp. | Manufacturing | $706,100 | $712,239 | 62 | $15.2M |  Research |
| Perfection Spring & Stamping Corp. | Manufacturing | $706,083 | $710,476 | 58 | $14.2M | Research |
| Integrated Specialty Contractors, LLC | Construction | $692,500 | $700,618 | 23 | $7.8M | Research |
| Fromm International Inc. | Wholesale Trade | $658,700 | $666,316 | 56 | $17.2M | Research |
| Marcres Manufacturing Inc. | Manufacturing | $652,000 | $657,395 | 38 | $9.3M | Research |
| C-Line Products Inc. | Manufacturing | $651,785 | $655,553 | 41 | $40.7M | Research |
| C-Line Products, Inc. | Manufacturing | $651,700 | $656,182 | 48 | $47.6M | Research |
| Lj Keefe Co | Construction | $581,200 | $585,188 | 20 | $6.2M | Research |
| Andrews Products, Inc. | Manufacturing | $571,000 | $575,348 | 46 | $12.0M | Research |
| Lumeri LLC | Professional, Scientific, and Technical Services | $569,292 | $574,511 | 29 | <$5M | Research |
| American Taxi Dispatch, Inc. | Transportation and Warehousing | $567,187 | $572,776 | 47 | $45.6M | Research |
| Sam's Beauty INC | Retail Trade | $566,000 | $571,753 | 69 | $12.0M | Research |
| Ami Bearings, Inc. | Manufacturing | $550,000 | $555,989 | 47 | $11.5M | Research |
| Cardone Record Services, Inc. | Health Care and Social Assistance | $548,900 | $553,983 | 103 | $23.9M | Research |
| Baldridge & Associates Structural Engineering Inc. | Professional, Scientific, and Technical Services | $523,097 | $526,856 | 27 | <$5M | Research |
| The Catholic Bishop of Chicago | Other Services (except Public Administration) | $521,262 | $526,026 | 110 | N/A | Research |
| The Catholic Bishop of Chicago | Other Services (except Public Administration) | $521,262 | $525,718 | 60 | N/A | Research |
| American Escrow & Closing Company | Real Estate and Rental and Leasing | $507,918 | $511,727 | 35 | $5.3M | Research |
| American Escrow and Closing Company | Real Estate and Rental and Leasing | $507,918 | $512,446 | 44 | $8.1M | Research |
| Katco Development INC | Construction | $504,525 | $507,495 | 27 | $8.4M | Research |
| The Catholic Bishop of Chicago | Other Services (except Public Administration) | $497,142 | $500,220 | 54 | N/A | Research |
| The Catholic Bishop of Chicago | Other Services (except Public Administration) | $497,142 | $503,011 | 60 | N/A | Research |
| F. & S. Engraving INC | Manufacturing | $471,952 | $476,567 | 25 | $6.1M | Research |
| Research Products International Corporation | Manufacturing | $466,700 | $471,756 | 31 | $8.1M | Research |
| Advanced Healthcare Services LLC | Health Care and Social Assistance | $464,200 | $467,176 | 47 | $8.1M | Research |