| Company | Booth | |
| A & B Environmental Services, Inc. | 227 | |
| ABASCO, LLC | 618 | |
| ACME Environmental | 442 | |
| AED123, LLC | 228 | |
| ALAMO1 | 212 | |
| AMBIPAR Response USA | 437 | |
| American Environmental & Industrial Services, LLC | 326 | |
| American Salvage Association | 206 | |
| AMPOL American Pollution Control, Corp. | 512 | |