| American Medical Response of Tennessee TN | — | 0 | — | — |
| American Medical Response West CA | — | 0 | — | — |
| American Medical Response West (Amr) CA | — | 0 | — | — |
| American Medical Response West-Non-Emergency Ift CA | — | 0 | — | — |
| American Medical Response, Inc. KY | — | 0 | — | — |
| American Medical Response, Mid-Atlantic Inc. MD | — | 0 | — | — |
| American Medical Response, Pierce County WA | — | 0 | — | — |
| American Medical Supplies, Inc. FL | — | 0 | — | — |
| American Medical Systems MN | — | 0 | — | — |
| American Merchandising Specialists NC | Administrative & Waste Services | 0 | — | F |
| American Merchant Inc VA | Manufacturing | 0 | — | A |
| American Metal Coatings OH | Manufacturing | 0 | — | F |
| American Metal Fab, Inc. MI | Manufacturing | 0 | — | C |
| American Metal Finishing, Inc. WI | Manufacturing | 0 | — | F |
| American Metal Supply OH | Wholesale Trade | 0 | — | A |
| American Metal Supply Co KY | Wholesale Trade | 0 | — | A |
| American Metal Tech. WI | Construction | 0 | — | F |
| American Metal Unlimited LLC CT | Other Services | 0 | — | F |
| American Metals Inc. SC | Wholesale Trade | 0 | — | A |
| American Micro Products, Inc OH | Manufacturing | 0 | — | F |
| American Millwork LLC IN | Manufacturing | 0 | — | D |
| AMERICAN MINE MANAGEMENT LLC TX | Mining & Extraction | 1 | $195,000 | — |
| American Mine Research VA | Manufacturing | 0 | — | A |
| American Mine Services, Inc. OH | — | 0 | — | — |
| American Mitsuba IN | Manufacturing | 0 | — | F |
| American Mitsuba Corporation KY | Manufacturing | 0 | — | A |
| American Mitsuba Corporation MI | Manufacturing | 0 | — | F |
| American Mitsuba Corporation Bardstown KY | Manufacturing | 0 | — | C |
| American Modern Insurance Group OH | — | 0 | — | — |
| American Motive Power, Inc. NY | Manufacturing | 0 | — | A |
| American Mountain Technologies VA | Manufacturing | 0 | — | F |
| AMERICAN MOVING & STORAGE, LLC GA | Transportation & Warehousing | 0 | — | F |
| American Moving and Installation, Inc MA | Transportation & Warehousing | 0 | — | A |
| American Multi­Cinema, Inc. DBA AMC Palm Promenade 24 CA | — | 0 | — | — |
| American Multi-Cinema, Inc. KS | Information & Media | 5 | $125,153 | — |
| American Multi-Cinema, Inc. DBA AMC Metreon 16 CA | — | 0 | — | — |
| American Municipal Power, Inc OH | Utilities | 0 | — | A |
| American Muscle Docks & Fabrication, LLC WV | Manufacturing | 0 | — | A |
| American Museum of Natural History NY | Arts & Entertainment | 0 | — | B |
| American Museum of the Moving Image NY | Arts & Entertainment | 0 | — | C |
| American Music Theatre PA | Arts & Entertainment | 0 | — | C |
| American Muslim Social Services Inc FL | Healthcare & Social Assistance | 1 | $72,000 | — |
| American Mussel Harvesters, Inc. RI | Manufacturing | 0 | — | D |
| American National Group Services LLC TX | Finance & Insurance | 7 | $144,757 | — |
| American National Logistics TX | Transportation & Warehousing | 0 | — | D |
| American National Skyline, Inc. of Indiana IN | Administrative & Waste Services | 0 | — | C |
| American National Standards Institute DC | Professional & Technical Services | 1 | $145,000 | — |
| American Natural Gas, Inc. OH | — | 0 | — | — |
| American Natural Processors IA | Manufacturing | 0 | — | D |
| American Newlong Inc IN | Wholesale Trade | 0 | — | F |