| Qualus Services, LLC MA | Other Services | 0 | — | A |
| Qualus Services, LLC MI | Other Services | 0 | — | A |
| Qualus Services, LLC MN | Other Services | 0 | — | F |
| Qualus Services, LLC OH | Other Services | 0 | — | A |
| Qualus Services, LLC PA | Other Services | 0 | — | A |
| Qualus Services, LLC TN | Other Services | 0 | — | F |
| Qualus Services, LLC TX | Other Services | 0 | — | A |
| Qualus, LLC FL | Professional & Technical Services | 3 | $133,445 | C |
| QUALYS, INC. CA | Information & Media | 20 | $135,905 | — |
| Quam Construction MN | — | 0 | — | — |
| Quam Nichols Company IL | Manufacturing | 0 | — | F |
| Quan Services, Inc. NC | Construction | 0 | — | F |
| Quanata, LLC CA | Finance & Insurance | 5 | $211,882 | — |
| Quandel Construction Group PA | Construction | 0 | — | A |
| Quandel Enterprises PA | Construction | 0 | — | A |
| Quandt's Foodservice Distributors, Inc. NY | — | 0 | — | — |
| Quanergy CA | — | 0 | — | — |
| Quanex MN | Manufacturing | 0 | — | A |
| Quanex ND | Manufacturing | 0 | — | A |
| Quanex PA | Manufacturing | 0 | — | F |
| Quanex (Woodcraft Industries Inc) Middlefield OH | Manufacturing | 0 | — | A |
| Quanex Building Procucts IN | Manufacturing | 0 | — | C |
| Quanex Building Products AZ | Manufacturing | 0 | — | D |
| Quanex Building Products IA | Manufacturing | 0 | — | F |
| Quanex Building Products IL | Manufacturing | 0 | — | F |
| Quanex Building Products IN | Manufacturing | 0 | — | A |
| Quanex Building Products KY | Manufacturing | 0 | — | D |
| Quanex Building Products MN | Construction | 0 | — | A |
| Quanex Building Products ND | Construction | 0 | — | A |
| Quanex Building Products TX | Management of Companies | 0 | — | A |
| Quanex Building Products WV | Manufacturing | 0 | — | A |
| Quanex Building Products Corporation OH | Manufacturing | 0 | — | B |
| Quanex Building Products Corporation OR | Manufacturing | 0 | — | A |
| Quanex Buildng Products CA | Manufacturing | 0 | — | A |
| Quanex Buildng Products TX | Manufacturing | 0 | — | F |
| Quanex Custom Componenets NC | Manufacturing | 0 | — | A |
| Quanex Custom Components OH | Manufacturing | 0 | — | F |
| Quanex Custom Components PA | Construction | 0 | — | F |
| Quanex Homeshield LLC CA | — | 0 | — | — |
| Quanex Homeshield LLC IL | Manufacturing | 0 | — | F |
| Quanex Homeshield LLC PA | Manufacturing | 0 | — | F |
| Quanex Homeshield LLC WA | Manufacturing | 0 | — | F |
| Quanex Homeshield, LLC WI | Manufacturing | 0 | — | D |
| QuanMol Tech, Inc. CA | Information & Media | 2 | $142,093 | — |
| Quant Strats Inc DE | Professional & Technical Services | 1 | $144,000 | — |
| Quanta BioDesign, Ltd. OH | Wholesale Trade | 0 | — | A |
| Quanta Cloud Technology USA LLC CA | Professional & Technical Services | 2 | $151,670 | — |
| Quanta Dialysis Technologies Inc. MA | Wholesale Trade | 0 | — | D |
| Quanta Health, LLC NE | Information & Media | 3 | $105,782 | — |
| Quanta Infrastructure Solutions Group, LLC TX | Construction | 0 | — | A |
