| ACAdvanced Composites | Sidney | OH | — | ◇ UNVERIFIED |
| ADAdvanced Drainage System | Ludlow | MA | — | ◇ UNVERIFIED |
| AEAdvanced Environmental Options INC | Spartanburg | SC | — | ◇ UNVERIFIED |
| ACAdvancion Corporation - Sterlington Plant | Sterlington | LA | — | ◇ UNVERIFIED |
| AGAdvario Galveston County, LLC | Texas City | TX | — | ◇ UNVERIFIED |
| ALAdvenchen Laboratories LLC | Moorpark | CA | — | ◇ UNVERIFIED |
| AIAequor INC | San Diego | CA | — | ◇ UNVERIFIED |
| AGAerojet General Corporation | Bakersfield | CA | — | ◇ UNVERIFIED |
| ADAes Drilling Fluids Clinton | Clinton | OK | — | ◇ UNVERIFIED |
| ADAes Drilling Fluids Pleasanton Warehouse | Pleasanton | TX | — | ◇ UNVERIFIED |
| AEAffinity Energy Solutions INC. | Rosharon | TX | — | ◇ UNVERIFIED |
| ACAfton Chemical Corporation Dba Costco | Simi Valley | CA | — | ◇ UNVERIFIED |
| ASAfx Studio | Panorama City | CA | — | ◇ UNVERIFIED |
| ACAgc Chemicals Americas INC | Bayonne | NJ | — | ◇ UNVERIFIED |
| AIAgri-cel INC | Delano | CA | — | ◇ UNVERIFIED |
| ATAig Technical Services | Redding | CA | — | ◇ UNVERIFIED |
| ATAirfast Technologies INC | Camarillo | CA | — | ◇ UNVERIFIED |
| APAir Plastics INC. | Mason | OH | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. | Cumberland | RI | — | ◇ UNVERIFIED |
| APAir Products and Chemicals Inc-j.p. Stevens Piedmont Site-remediation Project | Piedmont | SC | — | ◇ UNVERIFIED |
| APAir Products Manufacturing LLC | Paramount | CA | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Dayton | NJ | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Dayton | NJ | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Rowland Heights | CA | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Industry | CA | — | ◇ UNVERIFIED |
| AHAjinomoto Health & Nutrition North America, INC. | Eddyville | IA | — | ◇ UNVERIFIED |
| ACAkcros Chemicals INC | New Brunswick | NJ | — | ◇ UNVERIFIED |
| AIAkrotex, INC. | Orange | TX | — | ◇ UNVERIFIED |
| AAktivax | Broomfield | CO | — | ◇ UNVERIFIED |
| ANAkzo Nobel Coatings INC | Penns Grove | NJ | — | ◇ UNVERIFIED |
| ANAkzo Nobel Paints, LLC | Downingtown | PA | — | ◇ UNVERIFIED |
| ANAkzo Nobel Surface Chemistry LLC | Mccook | IL | — | ◇ UNVERIFIED |
| ANAkzo Nobel Surface Chemistry LLC | Salisbury | NC | — | ◇ UNVERIFIED |
 Alchem Laboratories Corporation | Alachua | FL | — | ◇ UNVERIFIED |
| ACAldrich Chemical CO INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| ACAldrich Chemical CO INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| AIAlexium INC | Duncan | SC | — | ◇ UNVERIFIED |
| AIAlfiniti INC. | Winton | NC | — | ◇ UNVERIFIED |
| APAli Pharmaceutical Mfg LLC | Omaha | NE | — | ◇ UNVERIFIED |
| AGAllied Group, INC. | Water Valley | MS | — | ◇ UNVERIFIED |
| AUAllied Universal Corporation | Fort Pierce | FL | — | ◇ UNVERIFIED |
| AIAllnex INC | North Augusta | SC | — | ◇ UNVERIFIED |
| AIAllnex INC | Beech Island | SC | — | ◇ UNVERIFIED |
| AUAllnex USA INC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| AUAllnex Usa, INC Formerly Cytec Industries INC | Wallingford | CT | — | ◇ UNVERIFIED |
| APAll Plastics, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| APAlpek Polyester Usa, LLC | Moncks Corner | SC | — | ◇ UNVERIFIED |
| AMAlpont Methanol | Oregon | OH | — | ◇ UNVERIFIED |
| ALAltuglas LLC | King of Prussia | PA | — | ◇ UNVERIFIED |
| ALAlyeschem, LLC / Alyeschem Methanol Plant | North Slope Borough | AK | — | ◇ UNVERIFIED |
