| PLPoly-Wood LLC - North Carolina | Roxboro | NC | Chemical Manufacturing325211 | 500+ | ◐ LIKELY ACTIVE |
| PIPtm&w Industries Holdco, LLC | Santa Fe Springs | CA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| PPPurAqua Products Inc. | Rock Hill | SC | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PEPurolite - Ecolab G Street | Philadelphia | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PIPyramid Inc. | Newton | IA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PTPyromeral Technology, INC | Sunnyvale | CA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| QCQuaker Color Inc | Quakertown | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RAR and D Molders a Lomont Molding Facility | Georgetown | TX | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| RHRbc Holding, INC. | Golden Oak | FL | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| RCRe:build Cr, LLC | Rock Hill | SC | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| RMReflex Medical Corporation | North St. Paul | MN | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RCResinall, Corp. - Severn | Severn | NC | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RSResin Solutions LLC | Hermosa Beach | CA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| RARevlis - Akron | Akron | OH | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RLRheTech, LLC - Fowlerville | Fowlerville | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RSRobert Stratton | Marietta | GA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| RIRoechling Industrial Mt. Pleasant | Mt. Pleasant | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RIRoechling Industrial Mt. Pleasant | Mount Pleasant | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RJRotterdam Junction Manufacturing Site | Rotterdam Junction | NY | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| RCRotuba Costum Compounds | Linden | NJ | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SBSABIC Bay St. Louis Facility | Bay Saint Louis | MS | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SBSABIC Bay St. Louis Facility | Bay St. Louis | MS | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SPSaint-Gobain Performance Plastics Corp. | Williamsburg | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSamuel Son & Co USA INC | Cartersville | GA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SASealed Air Medical | Duncan | SC | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSekisui Specialty Chemicals America, LLC. | Dallas | TX | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSekisui Specialty Chemicals America,LLC. | Pasadena | TX | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSekisui Specialty Chemicals, LLC | Calvert City | KY | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| STSHD - Tulsa | Tulsa | OK | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SAShintech Addis Plant | Addis | LA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SPSilgan Plastics | Monroe | GA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSoutheastern | Birmingham | AL | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SRSouthern Region Alexandria | Alexandria | LA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SRSouthern Region Diboll | Diboll | TX | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SRSouthern Region Fayetteville | Fayetteville | NC | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SMSpecialty Materials | River Falls | WI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Bay Minette | Bay Minette | AL | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Cumberland | Cumberland | RI | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Hastings | Hastings | PA | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Houston | Houston | TX | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Johns Creek | Johns Creek | GA | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Milledgeville | Milledgeville | GA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SESpillTech Environmental of Mobile | Mobile | AL | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SASt. Argos Workshop LLC | Sarasota | FL | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SIStarPet, Inc. | Ashesboro | NC | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| SRStaunton River Plastics LLC | Hurt | VA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SCStepan Company Northbrook | Northbrook | IL | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| SPSumika Polymers North America | Griffin | GA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSyensqo Specialty Polymers USA, L.L.C. | Marietta | OH | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| SSSyensqo Specialty Polymers, USA, LLC | Borger | TX | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |