| American Crane and Tractor Parts CA | Manufacturing | 0 | — | A |
| American Crane and Tractor Parts FL | Manufacturing | 0 | — | F |
| American Crane and Tractor Parts KS | Manufacturing | 0 | — | F |
| American Crane and Tractor Parts TN | Manufacturing | 0 | — | A |
| American Crane and Tractor Parts TX | Manufacturing | 0 | — | A |
| American Credit Acceptance, LLC SC | Finance & Insurance | 3 | $119,750 | — |
| AMERICAN CRESCENT ELEVATOR MFG CORP MS | Manufacturing | 0 | — | A |
| American Cricket Academy and Club MO | Arts & Entertainment | 1 | $36,000 | — |
| American Crystal Sugar MT | Manufacturing | 0 | — | F |
| American Crystal Sugar Company ND | Manufacturing | 0 | — | C |
| American Crystal Sugar Corporate MN | Manufacturing | 0 | — | A |
| AMERICAN CRYSTAL SUGAR CROOKSTON MN | Manufacturing | 0 | — | F |
| AMERICAN CRYSTAL SUGAR EAST GRAND FORKS MN | Manufacturing | 0 | — | B |
| American Crystal Sugar Hillsboro ND | Manufacturing | 0 | — | D |
| American Crystal Sugar Moorhead MN | Manufacturing | 0 | — | D |
| American Crystal Sugar Techical Services MN | Manufacturing | 0 | — | A |
| American Crystal Sugar- East Grand Forks Factory MN | Manufacturing | 0 | — | D |
| American Custom Drying NJ | Manufacturing | 0 | — | D |
| American Custom Exteriors NY | Construction | 0 | — | F |
| American Custom Metal Fabricating, Inc WI | Manufacturing | 0 | — | D |
| American Customer Care NY | — | 0 | — | — |
| American Cylinder Co Inc IL | Manufacturing | 0 | — | A |
| American Dairy Company MS | — | 0 | — | — |
| American Decorating, Inc. IL | Construction | 0 | — | F |
| American Deep FOundation, Inc. GA | Construction | 0 | — | F |
| American Demolition & Nuclear Decommissioning, Incorporated NY | Construction | 0 | — | A |
| American Demolition Corporation IL | Construction | 0 | — | F |
| American Demolition Inc CO | Construction | 0 | — | F |
| American Dental Education Association DC | Other Services | 1 | $70,866 | — |
| American Design & Landscape CO | Administrative & Waste Services | 0 | — | A |
| American Designers Corp NJ | Professional & Technical Services | 1 | $71,552 | — |
| American Diagnostic Corporation NY | Manufacturing | 0 | — | D |
| American Diesel Tube IL | Manufacturing | 0 | — | F |
| American Direct Procurement LLC KS | Wholesale Trade | 0 | — | A |
| American Direct sales IN | Manufacturing | 0 | — | A |
| American Directions Research Group, inc. CA | — | 0 | — | — |
| American Discount Tire & Service Inc. NJ | Other Services | 0 | — | F |
| American Dismantling, Inc. CA | Construction | 0 | — | F |
| American Display & Fixture LLC TN | Real Estate | 0 | — | F |
| American Display & Fixtures LLC TN | Real Estate | 0 | — | D |
| American Disposal Services of Georgia, Inc. GA | Administrative & Waste Services | 0 | — | C |
| American Distillation Inc NC | Manufacturing | 0 | — | A |
| American Distribution Centers UT | — | 0 | — | — |
| American Door & Drawer Inc GA | Manufacturing | 0 | — | A |
| American Door & Glass SW VA, Inc VA | Construction | 0 | — | A |
| AMERICAN DOOR & GLASS, INC VA | Construction | 0 | — | A |
| American Door and Dock, Inc. IL | Construction | 0 | — | F |
| American Door Installation, LP NV | Construction | 0 | — | A |
| American Door Products TX | Manufacturing | 0 | — | F |
| American Door Works MN | Retail Trade | 0 | — | F |