| American States Water Company SANTA MARIA-WC CA | Utilities | 0 | — | A |
| American States Water Company SPRING ST-WC CA | Utilities | 0 | — | A |
| American States Water Company VIA VERDE - WC CA | Utilities | 0 | — | A |
| American Stationery Co., Inc. IN | Manufacturing | 0 | — | A |
| American Steamship Company NY | — | 0 | — | — |
| American Steel & Aluminum MA | Manufacturing | 0 | — | F |
| American Steel & Aluminum ME | Wholesale Trade | 0 | — | F |
| American Steel & Aluminum NY | Manufacturing | 0 | — | A |
| American Steel & aluminum co., inc. TX | Manufacturing | 0 | — | F |
| American Steel and Aluminum NY | Wholesale Trade | 0 | — | A |
| American Steel And Aluminum LLC ME | Wholesale Trade | 0 | — | F |
| American Steel And Aluminum LLC NH | Manufacturing | 0 | — | F |
| American Steel Fabricators, LLC NH | Manufacturing | 0 | — | F |
| American Steel Products GA | Manufacturing | 0 | — | F |
| American Steel Treating OH | Manufacturing | 0 | — | F |
| American Step Company, Inc. GA | Manufacturing | 0 | — | F |
| American Stores Company LLC CA | — | 0 | — | — |
| AMERICAN STORM PROTECTION CORP. FL | Construction | 0 | — | A |
| American Stripping Company VA | Construction | 0 | — | A |
| American Structural Concrete GA | Construction | 0 | — | B |
| American Structural Metals, Inc. WI | Manufacturing | 0 | — | F |
| American Structural Works NY | Construction | 0 | — | A |
| American Structurepoint, Inc. FL | Professional & Technical Services | 0 | — | A |
| American Structurepoint, Inc. IL | Professional & Technical Services | 0 | — | A |
| American Structurepoint, Inc. IN | Professional & Technical Services | 1 | $101,920 | B |
| American Structurepoint, Inc. OH | Professional & Technical Services | 0 | — | F |
| American Structurepoint, Inc. TN | Professional & Technical Services | 0 | — | A |
| American Structurepoint, Inc. TX | Professional & Technical Services | 0 | — | A |
| American Structures & Design WA | Manufacturing | 0 | — | A |
| American Student Assistance MA | Educational Services | 0 | — | A |
| American Student Transportion MN | Transportation & Warehousing | 0 | — | D |
| American Sugar Refining Inc. MD | Manufacturing | 0 | — | C |
| American Sugar Refining Inc. NY | Manufacturing | 0 | — | C |
| American Sugar Refining, Inc. OH | Manufacturing | 0 | — | B |
| American Superconductor Corporation MA | Manufacturing | 0 | — | B |
| American Superconductor Corporation WA | Manufacturing | 0 | — | A |
| American Superconductor Corporation WI | Manufacturing | 0 | — | A |
| American Superconductor Corporation, Inc. NY | Manufacturing | 0 | — | F |
| American Surfacing Materials, LLC TX | Manufacturing | 0 | — | F |
| American Surplus & Mfg. Inc. MN | Construction | 0 | — | F |
| American Surplus & Mfg., Inc. (Ice Castle Fish Houses) MN | Manufacturing | 0 | — | F |
| American Suzuki Motor Corporation CA | — | 0 | — | — |
| American Suzuki Motor Corporation FL | — | 0 | — | — |
| American Suzuki Motor Corporation MD | — | 0 | — | — |
| American Suzuki Motor Corporation MI | — | 0 | — | — |
| American Suzuki Motor Corporation NJ | — | 0 | — | — |
| American Suzuki Motor Corporation OR | — | 0 | — | — |
| American Suzuki Motor Corporation RI | — | 0 | — | — |
| American Suzuki Motor Corporation WA | — | 0 | — | — |
| American Suzuki Motors TN | — | 0 | — | — |
