| Ameron Construction Co Inc. PA | Construction | 0 | — | C |
| Ameron International Phoenix Division AZ | — | 0 | — | — |
| Ameron International Wind Towers Division CA | — | 0 | — | — |
| Ameron International, Inc. AZ | — | 0 | — | — |
| Ameropa North America, Inc. FL | Wholesale Trade | 0 | — | A |
| Amertex Textile Services, Inc. NY | — | 0 | — | — |
| Amery Technical Products Inc. WI | Manufacturing | 0 | — | D |
| Ames - Suwanee GA | Real Estate | 0 | — | F |
| Ames Advanced Material Corp. NJ | Manufacturing | 0 | — | F |
| Ames Cleaners and Formal Inc. VA | — | 0 | — | — |
| Ames Companies, Inc. FL | Manufacturing | 1 | $153,717 | — |
| Ames Construction MN | Construction | 0 | — | A |
| Ames Copper Group NC | Manufacturing | 0 | — | A |
| Ames Goldsmith Corp. NJ | Manufacturing | 0 | — | F |
| Ames Goldsmith Corp. NY | Manufacturing | 0 | — | F |
| Ames Goldsmith Corp. WV | Manufacturing | 0 | — | A |
| AMES INDUSTRIES INC., PA | Manufacturing | 0 | — | F |
| Ames Industries, Inc. PA | Manufacturing | 0 | — | A |
| Ames IT and Numeric Solutions, LLC IA | Professional & Technical Services | 1 | $100,233 | — |
| Ames Janitorial Services PA | Administrative & Waste Services | 0 | — | D |
| Ames Linen Service NY | Other Services | 0 | — | A |
| Ames Performance Engineering NH | Retail Trade | 0 | — | A |
| Ames Rubber Corporation NJ | Manufacturing | 0 | — | D |
| AMES RUBBER MANUFACTURIN COMPANY, INC. CA | Manufacturing | 0 | — | F |
| AMES RUBBER MANUFACTURING COMPANY, INC. TN | Manufacturing | 0 | — | A |
| Ames Suwanee GA | Real Estate | 0 | — | F |
| Amesbury Industries MN | Manufacturing | 0 | — | D |
| Amesbury Lodging Ventures, LLC MA | Accommodation & Food Services | 0 | — | F |
| Amesbury Truth, Inc. NC | — | 0 | — | — |
| Amesbury Truth, Inc. NY | — | 0 | — | — |
| AmesburyTruth MN | Manufacturing | 0 | — | F |
| AmesburyTruth NC | Manufacturing | 0 | — | B |
| AmesburyTruth SD | Manufacturing | 0 | — | D |
| AMESITE INC. MI | Professional & Technical Services | 1 | $160,200 | — |
| AMET Inc ID | Manufacturing | 0 | — | F |
| Ametco Manufacturing Corporation OH | Manufacturing | 0 | — | F |
| Ametco MFG. CORP. OH | Manufacturing | 0 | — | A |
| Ametek CA | Manufacturing | 0 | — | F |
| Ametek CT | Manufacturing | 0 | — | F |
| Ametek DE | Manufacturing | 0 | — | A |
| Ametek FL | Manufacturing | 0 | — | D |
| Ametek GA | Manufacturing | 0 | — | B |
| Ametek IL | Manufacturing | 0 | — | C |
| AMETEK IN | Manufacturing | 0 | — | A |
| Ametek LA | Manufacturing | 0 | — | A |
| Ametek MA | Manufacturing | 0 | — | B |
| Ametek MI | Manufacturing | 0 | — | A |
| Ametek MN | Manufacturing | 0 | — | A |
| Ametek MO | Manufacturing | 0 | — | A |
| Ametek NC | Manufacturing | 0 | — | F |