| PIPlating International INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| PIPlaze INC | Saint Clair | MO | — | ◇ UNVERIFIED |
| PCPlz CORP | Bridgeview | IL | — | ◇ UNVERIFIED |
| PIPolychemie INC | Pearlington | MS | — | ◇ UNVERIFIED |
| PIPolychemie INC. - Wayne, Mi | Wayne | MI | — | ◇ UNVERIFIED |
| PIPolymerics INC | Kent | OH | — | ◇ UNVERIFIED |
| PDPolyventive ? Dalton South | Dalton | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Calhoun | GA | — | ◇ UNVERIFIED |
| PFPort Fourchon North | Golden Meadow | LA | — | ◇ UNVERIFIED |
| PEPpg Euclid Pretreatment & Specialty Prods | Euclid | OH | — | ◇ UNVERIFIED |
| PWProchem Water LLC | Elliston | VA | — | ◇ UNVERIFIED |
| PAPsc Allworth - Birmingham Facility | Birmingham | AL | — | ◇ UNVERIFIED |
| PTPurcell Tire and Service Center | Anchorage | AK | — | ◇ UNVERIFIED |
| PLPure Lead Products | Lake Placid | FL | — | ◇ UNVERIFIED |
 Qualichem, INC. | Salem | VA | — | ◇ UNVERIFIED |
 Ques Industries INC | Cleveland | OH | — | ◇ UNVERIFIED |
| RSRefinery Specialties Hempstead Facility | Hempstead | TX | — | ◇ UNVERIFIED |
| RPRemet Pic INC | Utica | NY | — | ◇ UNVERIFIED |
| RCRevlis CORP | Akron | OH | — | ◇ UNVERIFIED |
| RCRevlis Corporation | Akron | OH | — | ◇ UNVERIFIED |
| RCRhein Chemie CORP | Chardon | OH | — | ◇ UNVERIFIED |
| RWRollie Williams Paint Spot INC | Elkhart | IN | — | ◇ UNVERIFIED |
| RSRossborough Supply Src Div | Cleveland | OH | — | ◇ UNVERIFIED |
| RMRti Martinsville Incorporated | Martinsville | VA | — | ◇ UNVERIFIED |
| SCSafety-kleen CORP INC - Davenport Facility | Davenport | IA | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems | Cranston | RI | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems -510301 | Minneapolis | MN | — | ◇ UNVERIFIED |
| SKSafety Kleen Systems INC | Des Moines | IA | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC | Dolton | IL | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems, INC. - Dolomite, Al Service Center | Dolomite | AL | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC - Linden | Linden | NJ | — | ◇ UNVERIFIED |
| SCSelect Chemistry-tyler | Tyler | TX | — | ◇ UNVERIFIED |
| SESemco Enterprises INC | City of Industry | CA | — | ◇ UNVERIFIED |
| STShamrock Technologies INC | Newark | NJ | — | ◇ UNVERIFIED |
| SCShell Chemical LP - Martinez Catayst Plant | Martinez | CA | — | ◇ UNVERIFIED |
| SLShell Lubricants Fowlerville | Fowlerville | MI | — | ◇ UNVERIFIED |
| SCShrieve Chemical Services | Marlin | TX | — | ◇ UNVERIFIED |
| SESiemens Energy & Automation Incorporated | Roebuck | SC | — | ◇ UNVERIFIED |
| SOSigma-genosys of Texas | The Woodlands | TX | — | ◇ UNVERIFIED |
| SCSika CORP | Aurora | IL | — | ◇ UNVERIFIED |
| SCSmark CO | South Gate | CA | — | ◇ UNVERIFIED |
| SSSolid Start INC | Lakeland | FL | — | ◇ UNVERIFIED |
| SISolutia INC Krummrich Il (part) | Sauget | IL | — | ◇ UNVERIFIED |
| SUSolvay USA Midland | Midland | TX | — | ◇ UNVERIFIED |
 South Coast Terminals Strang Road Facility | La Porte | TX | — | ◇ UNVERIFIED |
| SLSouthwin LTD Nevada | Sparks | NV | — | ◇ UNVERIFIED |
| SLSpecchem, LLC | Kansas City | KS | — | ◇ UNVERIFIED |
| SCSternocandlelamp CO LLC | Memphis | TN | — | ◇ UNVERIFIED |
| SPStp Products Manufacturing CO | Painesville | OH | — | ◇ UNVERIFIED |
| SPStp Products Manufacturing Company | Vandalia | OH | — | ◇ UNVERIFIED |
| SCStruktol CO. of America | Villa Rica | GA | — | ◇ UNVERIFIED |
| SKStryten Kcmo LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| SWSuez Wts USA INC | Addison | IL | — | ◇ UNVERIFIED |
| SWSuez Wts USA INC Beaumont - Plant | Beaumont | TX | — | ◇ UNVERIFIED |
| SCSyntech Cedar Port | Baytown | TX | — | ◇ UNVERIFIED |
| TITaracorp Imaco | Winston Salem | NC | — | ◇ UNVERIFIED |
| TCTaylor Chemical, INC. | Taylor | PA | — | ◇ UNVERIFIED |
| TOTeam Oil Tools | Tulsa | OK | — | ◇ UNVERIFIED |
| TITechnic INC | Cranston | RI | — | ◇ UNVERIFIED |
| TATeledyne Allvac | Monroe | NC | — | ◇ UNVERIFIED |
| TUTernium USA INC - Shreveport Facility | Shreveport | LA | — | ◇ UNVERIFIED |
| TThunderline-z | Hampstead | NH | — | ◇ UNVERIFIED |
| TSTimpie Salt Processing Plant | Grantsville | UT | — | ◇ UNVERIFIED |
| TSTorrey S Crane Company | Southington (plantsville) | CT | — | ◇ UNVERIFIED |
| TMTroy Manufacturing INC | Burton | OH | — | ◇ UNVERIFIED |
| UPUltra Pure Solutions INC | Castroville | CA | — | ◇ UNVERIFIED |
| UEUmicore Electrical Materials USA INC | Attleboro | MA | — | ◇ UNVERIFIED |
| UIUnited Industries Dba Chemsico | Saint Louis | MO | — | ◇ UNVERIFIED |
| USUnivar Solutions Powder Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Ssc Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Usa, LLC. Fka Dpc Enterprises, LP | Chattanooga | TN | — | ◇ UNVERIFIED |
| UAUS Army Pine Bluff Arsenal | Pine Bluff | AR | — | ◇ UNVERIFIED |
| UWUS Water Services INC | Cambridge | MN | — | ◇ UNVERIFIED |
| UIUyemura International Corporation | Southington | CT | — | ◇ UNVERIFIED |
| VEVeolia Es Technical Solutions Llc/ Onyx Env Services CO | Henderson | CO | — | ◇ UNVERIFIED |
| VUVesuvius USA Corporation - Cd (1318126134) | Brookpark | OH | — | ◇ UNVERIFIED |
| VWVictory White Metal CO | Cleveland | OH | — | ◇ UNVERIFIED |
| VTVoltarc Technologies INC | Waterbury | CT | — | ◇ UNVERIFIED |
| VGVulcan Global Manufacturing Solutions INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| VGVulcan Global Manufacturing Solutions INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| WCW2fuel - Crawfordsville Facility | Crawfordsville | IA | — | ◇ UNVERIFIED |
| WCWah Chang Alabama | Huntsville | AL | — | ◇ UNVERIFIED |
| WCWako Chemicals USA INC | Richmond | VA | — | ◇ UNVERIFIED |
| WCWall Colmonoy CORP CORP Los Lumas Plant | Los Lunas | NM | — | ◇ UNVERIFIED |
| WCWalling Chemical Company | Sioux Falls | SD | — | ◇ UNVERIFIED |
| WTWater Treatment Specialist INC | Catano | PR | — | ◇ UNVERIFIED |
| WEWestinghouse Elec CO - Specialty Metals Plant | Blairsville | PA | — | ◇ UNVERIFIED |
| WBWoody Butts | Arlington | TX | — | ◇ UNVERIFIED |
| WRWorld Resources Company | Tolleson | AZ | — | ◇ UNVERIFIED |
| WRW R Grace & CO -conn Grace Const Prod | North Bergen | NJ | — | ◇ UNVERIFIED |
| WRW R Grace & Company Conn Grace Construction Products | Lithonia | GA | — | ◇ UNVERIFIED |
| WRW R Grace & Company Incorporated | Clearfield | UT | — | ◇ UNVERIFIED |
| 2E2950 Executive Blvd | Mesquite | TX | 20–99 | ◐ LIKELY ACTIVE |
| 55913_12970 | Tumwater | WA | 20–99 | ◐ LIKELY ACTIVE |
| 77100 | Sauget | IL | 100–499 | ◐ LIKELY ACTIVE |
| ABA. Barber Excavating, LLC | Coventry | RI | — | ◐ LIKELY ACTIVE |
| ASAbri Science, LLC | Baltimore | MD | — | ◐ LIKELY ACTIVE |
| ASAbsolute Standards INC | Middletown | CT | — | ◐ LIKELY ACTIVE |
| ASAccu-Care Supply Inc | Rumford | RI | 20–99 | ◐ LIKELY ACTIVE |
| AFACL - Flavor Center | Richmond | VA | 20–99 | ◐ LIKELY ACTIVE |
