| Amentum Services Inc NV | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc NY | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc OH | Professional & Technical Services | 0 | — | A |
| Amentum Services Inc OK | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc OR | Other Services | 0 | — | A |
| Amentum Services Inc PA | Manufacturing | 0 | — | C |
| Amentum Services Inc SC | Other Services | 0 | — | A |
| Amentum Services Inc TN | Administrative & Waste Services | 0 | — | C |
| Amentum Services Inc TX | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc UT | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc VA | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc WA | Transportation & Warehousing | 0 | — | A |
| Amentum Services Inc WI | Other Services | 0 | — | A |
| Amentum Services Inc WV | Professional & Technical Services | 0 | — | A |
| Amentum Services Inc IA | Other Services | 0 | — | A |
| Amentum Services Inc ID | Professional & Technical Services | 0 | — | A |
| Amentum Stennis Space Center MS | — | 0 | — | — |
| Amentum Technology Inc. TN | Professional & Technical Services | 1 | $106,698 | — |
| Amentum, Operations and Maintenance Services VA | — | 0 | — | — |
| Amentum/Hollomon AFB NM | — | 0 | — | — |
| Amentum/NAS JRB LA | — | 0 | — | — |
| AmePower FL | Manufacturing | 0 | — | A |
| Amer Alame, M.D., P.C. MI | Healthcare & Social Assistance | 1 | $239,200 | — |
| Amer Sports Winter & Outdoor Company UT | Manufacturing | 1 | $82,264 | — |
| Amerant Mortgage, LLC FL | — | 0 | — | — |
| AMERASIA BANK NY | Finance & Insurance | 1 | $36,088 | — |
| Amerasia International Technology, Inc. NJ | Manufacturing | 0 | — | A |
| Amercan Heat Treating, Inc. CT | Manufacturing | 0 | — | F |
| AmerCareRoyal PA | Transportation & Warehousing | 0 | — | A |
| AmerCareRoyal SC | Wholesale Trade | 0 | — | A |
| AmerCareRoyal TX | Wholesale Trade | 0 | — | F |
| Amercareroyal LLc MA | Manufacturing | 0 | — | F |
| Amerect, Inc. MN | Construction | 0 | — | A |
| Ameren Illinois IL | Utilities | 0 | — | D |
| Ameren Missouri IA | Utilities | 0 | — | F |
| Ameren Missouri MO | Utilities | 0 | — | F |
| Ameren Services Company MO | Administrative & Waste Services | 5 | $145,520 | D |
| Ameren Transmission MO | Utilities | 0 | — | A |
| Amerequip WI | Manufacturing | 0 | — | F |
| AMERERICAN INTERNATIONAL MANUFACTURING CO, INC CA | Manufacturing | 0 | — | F |
| Ameresco, Inc. MA | Professional & Technical Services | 3 | $109,360 | — |
| Amerex Corporation AL | Manufacturing | 0 | — | F |
| AmerGas IL | Retail Trade | 0 | — | A |
| Amergis Healthcare Staffing, Inc. MD | Administrative & Waste Services | 1 | $120,165 | — |
| Amerhart Ltd IL | Wholesale Trade | 0 | — | D |
| Amerhart Ltd KS | Wholesale Trade | 0 | — | A |
| Amerhart Ltd MI | Wholesale Trade | 0 | — | B |
| Amerhart Ltd MN | Wholesale Trade | 0 | — | B |
| Amerhart Ltd MO | Wholesale Trade | 0 | — | A |
| Amerhart Ltd WI | Wholesale Trade | 0 | — | F |