| BCBasf Corporation - St. Louis | Saint Louis | MO | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| DSDevan Sealants, INC | Saint Louis | MO | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| GPGreen Park-nomax LLC | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| HSHenkel Surface Techs | Saint Louis | MO | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| HPHuntsman Pigments Americas | Saint Louis | MO | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
Jost Chemical CO INC | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| JRJ R Simplot CO | Saint Louis | MO | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| MIMaclan Inds INC | Saint Louis | MO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MMMeridian Medical Technologies INC | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| MPMid-states Paint & Chem CO | Saint Louis | MO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MEMissouri Electrochem Incorporated | Saint Louis | MO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MPMissouri Paint & Varnish | Saint Louis | MO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MTMulti Technologies INC | Saint Louis | MO | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| PBPatheon Biologics | Saint Louis | MO | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| PQPharmacia Queeny Pilot Plant | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SCSigma Chemical (tissue Culture) | Saint Louis | MO | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| SMSteelcote Manufacturing | Saint Louis | MO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CICentraz Industries Inc | Saint Louis | MO | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CSChemstation St. Louis | Saint Louis | MO | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CCovidien | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| GTGeno Technology INC. | Saint Louis | MO | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
Gunther Salt Company | Saint Louis | MO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HPHuntsman Petrochemical CORP | Saint Louis | MO | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| KHK Hall Studios, INC | Saint Louis | MO | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| MPMallinckrodt Pharmaceuticals, INC. | Saint Louis | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PVPure Vibes, LLC | Saint Louis | MO | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
Sanofi-aventis U.s. LLC. | Saint Louis | MO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| SLSpartech LLC | Saint Louis | MO | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| ZZonolite | Saint Louis | MO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |