| ACAfton Chemical Additives Port Arthur Facility | Port Arthur | TX | — | ◇ UNVERIFIED |
| ACAgc Chemicals Americas INC | Bayonne | NJ | — | ◇ UNVERIFIED |
| AIAglade Industries LLC | North Tonawanda | NY | — | ◇ UNVERIFIED |
| APAir Plastics INC. | Mason | OH | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. | Cumberland | RI | — | ◇ UNVERIFIED |
| APAir Products & Chemicals INC | Manalapan | NJ | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Dayton | NJ | — | ◇ UNVERIFIED |
| APAir Products Polymers LP | Rowland Heights | CA | — | ◇ UNVERIFIED |
| ACAkcros Chemicals INC | New Brunswick | NJ | — | ◇ UNVERIFIED |
| ANAkzo Nobel Coatings INC | Penns Grove | NJ | — | ◇ UNVERIFIED |
| ANAkzo Nobel Surface Chemistry LLC | Mccook | IL | — | ◇ UNVERIFIED |
| ABAlabama Bioenergy LLC. | Bridgeport | AL | — | ◇ UNVERIFIED |
 Alchem Laboratories Corporation | Alachua | FL | — | ◇ UNVERIFIED |
| ACAldrich Chemical CO INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| ACAldrich Chemical CO INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| APAlpek Polyester Usa, LLC | Moncks Corner | SC | — | ◇ UNVERIFIED |
| ALAltuglas LLC | King of Prussia | PA | — | ◇ UNVERIFIED |
| ACAmerchol CORP | Edison | NJ | — | ◇ UNVERIFIED |
| ACAmerican Chemical LLC | Portage | UT | — | ◇ UNVERIFIED |
| ACAmerican Compounding Specialties | Brighton | MI | — | ◇ UNVERIFIED |
| ACAmerican Custom Marble INC | San Jose | CA | — | ◇ UNVERIFIED |
| AFAmerican Foam Technologies | Ronceverte | WV | — | ◇ UNVERIFIED |
| AFAmerican Foam Technologies | Maxwelton | WV | — | ◇ UNVERIFIED |
| AFAmerican Future Fuels Facility | Lima | OH | — | ◇ UNVERIFIED |
 American Polymers | Oxford | MA | — | ◇ UNVERIFIED |
| APAmerican Polystyrene CORP | Torrance | CA | — | ◇ UNVERIFIED |
| ATAmerican Technology & Resear Ch Industries INC. | Greeneville | TN | — | ◇ UNVERIFIED |
| AWAmerican Warehouses, LTD. | Houston | TX | — | ◇ UNVERIFIED |
| APAmeron Protective Lining Products | Brea | CA | — | ◇ UNVERIFIED |
| ASAm Stabilizers | Franklin | PA | — | ◇ UNVERIFIED |
| ACAmtech Corporation Site | Yelm | WA | — | ◇ UNVERIFIED |
| ADAnderson Development CO | Gary | IN | — | ◇ UNVERIFIED |
| AIAnm, INC | Medford | OR | — | ◇ UNVERIFIED |
| ABApache Building Products CO | Linden | NJ | — | ◇ UNVERIFIED |
| APApache Products CO | Miami | FL | — | ◇ UNVERIFIED |
| AMApex Metal Finishing-apex Metal Finishing | Saint Louis | MO | — | ◇ UNVERIFIED |
| ARApex Resources Technologies | Pittsfield | MA | — | ◇ UNVERIFIED |
 Applied Biosystems, LLC | Foster City | CA | — | ◇ UNVERIFIED |
| AMApplied Material Solutions, INC. | Burlington | WI | — | ◇ UNVERIFIED |
| ASApplied Silicone Corportation | Santa Paula | CA | — | ◇ UNVERIFIED |
| ACArcal Chemicals INC | Seat Pleasant | MD | — | ◇ UNVERIFIED |
| ABArcanum Baytown Site | Baytown | TX | — | ◇ UNVERIFIED |
| ATArchroma Textile Effects | Charlotte | NC | — | ◇ UNVERIFIED |
| ACArkema Coating Resins | Kansas City | MO | — | ◇ UNVERIFIED |
| AIArkema INC | Lemont | IL | — | ◇ UNVERIFIED |
| AIArkema Inc-n Kansas City | North Kansas City | MO | — | ◇ UNVERIFIED |
| AArnco | South Gate | CA | — | ◇ UNVERIFIED |
| ACArris Composites INC | Berkeley | CA | — | ◇ UNVERIFIED |
| AEArrow Engineering | Dalton | GA | — | ◇ UNVERIFIED |
| ALArrowstar, LLC | Dalton | GA | — | ◇ UNVERIFIED |
