| SDScientific Design CO INC | Little Ferry | NJ | — | ◇ UNVERIFIED |
| SCScoular Company | Venango | NE | — | ◇ UNVERIFIED |
| SCSelect Chemicals, LTD. | Yorktown | TX | — | ◇ UNVERIFIED |
| SFSequoyah Fuels CORP. | Gore | OK | — | ◇ UNVERIFIED |
| SRSgr Railyard | San Patricio | TX | — | ◇ UNVERIFIED |
| SNSgs North America | Deer Park | TX | — | ◇ UNVERIFIED |
| SASherwin Alumina Plant | Ingleside | TX | — | ◇ UNVERIFIED |
| SCSierra Chemical CO | Sparks | NV | — | ◇ UNVERIFIED |
| SASigma Aldrich Chemical Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SCSigna Chemistry INC | Rochester | NY | — | ◇ UNVERIFIED |
| SLSilar Laboratories | Scotia | NY | — | ◇ UNVERIFIED |
| SSSimplot Soilbuilders Prosser | Prosser | WA | — | ◇ UNVERIFIED |
| SISkasol INC | Oakland | CA | — | ◇ UNVERIFIED |
| SQSkw Quab Chemicals | Theodore | AL | — | ◇ UNVERIFIED |
| SLSkynano, LLC | Knoxville | TN | — | ◇ UNVERIFIED |
| SOSnap on Diagnostics | Elkhorn | WI | — | ◇ UNVERIFIED |
| SISolutia INC | Trenton | MI | — | ◇ UNVERIFIED |
| SISolutia INC Krummrich Il (part) | Sauget | IL | — | ◇ UNVERIFIED |
| SPSolutia Plant | Trenton | MI | — | ◇ UNVERIFIED |
| SCSolvay Chemicals, INC. Parachute Plant | Parachute | CO | — | ◇ UNVERIFIED |
| SUSolvay USA INC | New Brunswick | NJ | — | ◇ UNVERIFIED |
| SUSolvay USA Inc.-silver Bow Plant | Silver Bow | MT | — | ◇ UNVERIFIED |
| SISongwon International Americas INC. - La Porte | La Porte | TX | — | ◇ UNVERIFIED |
| SBSoutheastern Biodiesel, LLC | Athens | AL | — | ◇ UNVERIFIED |
 Southern Ionics INC. - Lake Charles Facility | Carlyss | LA | — | ◇ UNVERIFIED |
 Southern States Chemical | Wilmington | NC | — | ◇ UNVERIFIED |
| Southern States Cooperative INC - Chesapeake | Chesapeake | VA | — | ◇ UNVERIFIED |
| SSSouthern States Cooperative- Owensboro, Ky (78112) | Owensboro | KY | — | ◇ UNVERIFIED |
| Southern States Coop INC | Statesville | NC | — | ◇ UNVERIFIED |
| STSouth Texas Chlorine, INC. | Harlingen | TX | — | ◇ UNVERIFIED |
| SCSpecialty Chemical Systems, INC | Pottstown | PA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Zachary | LA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Selma | AL | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Jay | ME | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Plymouth | NC | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
| SMSpecialty Minerals Incorporated | Franklin | VA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals Inc, Owner, and Specialty Minerals Mississippi Inc, Operator | Brookhaven | MS | — | ◇ UNVERIFIED |
| SPSpecialty Products Us, LLC | Institute | WV | — | ◇ UNVERIFIED |
| SPSpecialty Products Us, LLC - Glutaraldehyde Plant | Institute | WV | — | ◇ UNVERIFIED |
| SBSpectrum Brands | Sylacauga | AL | — | ◇ UNVERIFIED |
| SISpex Industries INC Chemical & Sample Prep | Metuchen | NJ | — | ◇ UNVERIFIED |
| SPSpi Polyols INC. | New Castle | DE | — | ◇ UNVERIFIED |
| SPSplash Products INC | Ayer | MA | — | ◇ UNVERIFIED |
| SISpontex INC | Columbia | TN | — | ◇ UNVERIFIED |
| STStar Thermoplastic Alloys & Rubbers INC | Broadview | IL | — | ◇ UNVERIFIED |
| SCStoney Creek Technologies LLC | Marcus Hook | PA | — | ◇ UNVERIFIED |
| SPStreamline Polymers | Houston | TX | — | ◇ UNVERIFIED |
| SASulphuric Acid Trading | Tampa | FL | — | ◇ UNVERIFIED |
 Sun Chemical CORP | Williamsport | MD | — | ◇ UNVERIFIED |
