| PRPm Resources-purina Mills INC | Bridgeton | — | ◇ UNVERIFIED |
| PSPolyad Services LLC | Earth City | — | ◇ UNVERIFIED |
| PCPolyone-specialty Compounds | Cape Girardeau | — | ◇ UNVERIFIED |
| PMPrecision Marble-grandview | Grandview | — | ◇ UNVERIFIED |
| QCQuestvapco CORP | Valley Park | — | ◇ UNVERIFIED |
| RPRam Power Environmental Services INC | Cape Girardeau | — | ◇ UNVERIFIED |
| RCRay Carroll County Grain Growers | Carrollton | — | ◇ UNVERIFIED |
| RORedneck Outdoor Products | Lamar | — | ◇ UNVERIFIED |
| RERenewable Environmental Solutions Site Cleanup | Carthage | — | ◇ UNVERIFIED |
| RPRenewable Power of Cape Girardeau | Cape Girardeau | — | ◇ UNVERIFIED |
| RPRenewable Power of Missouri, LLC | Marshall | — | ◇ UNVERIFIED |
| RIRhodia Inc-rhodia INC | St. Louis | — | ◇ UNVERIFIED |
| RER.n. Eaton and Company | Riverside | — | ◇ UNVERIFIED |
| RFRogene French Alcohol Plant Site | Osceola | — | ◇ UNVERIFIED |
| RLRoi Labs of Atherton | Independence | — | ◇ UNVERIFIED |
| RORoyal Oak Enterprises | Meta | — | ◇ UNVERIFIED |
| RORoyal Oak Enterprises | Raymondville | — | ◇ UNVERIFIED |
| RORoyal Oak Enterprises - Ellsinore Briquette | Ellsinore | — | ◇ UNVERIFIED |
| RORoyal Oak Enterprises ,llc | Branson | — | ◇ UNVERIFIED |
| SBS & B Pharma Dba Alkem Laboratories | Fenton | — | ◇ UNVERIFIED |
| SMScotts Miracle-gro | Wright City | — | ◇ UNVERIFIED |
| SMService Midwest | St Charles | — | ◇ UNVERIFIED |
| SSService & Supply Cooperative | Bowling Green | — | ◇ UNVERIFIED |
| SWSherwin Williams #703202 | Springfield | — | ◇ UNVERIFIED |
| SWSherwin Williams #708470 | St Louis | — | ◇ UNVERIFIED |
| SASigma Aldrich Chemical Company | St Louis | — | ◇ UNVERIFIED |
| SASigma Aldrich CO | St Louis | — | ◇ UNVERIFIED |
| SCSigma Chemical (tissue Culture) | Saint Louis | — | ◇ UNVERIFIED |
| SCSoutheast Coop Service CO | Morehouse | — | ◇ UNVERIFIED |
| SMSpringfield Ms4 | Springfield | — | ◇ UNVERIFIED |
| SMSteelcote Manufacturing | Saint Louis | — | ◇ UNVERIFIED |
| SMStellar Manufacturing, INC. | Hazelwood | — | ◇ UNVERIFIED |
| SLSt. Louis Composting - Hall Street | St. Louis | — | ◇ UNVERIFIED |
| SLSt Louis Composting Pacific | Pacific | — | ◇ UNVERIFIED |
| SLSt Louis Paint-st Louis Paint | St. Louis | — | ◇ UNVERIFIED |
| TPTeva Pharmaceuticals USA INC | Mexico | — | ◇ UNVERIFIED |
| THTiffany Home Prods | Fenton | — | ◇ UNVERIFIED |
| VJVi Jon LLC | St Louis | — | ◇ UNVERIFIED |
| WMWal Mart Stores INC | Joplin | — | ◇ UNVERIFIED |
| WCWaterlac Coating Inc-waterlac - Cuba | Cuba | — | ◇ UNVERIFIED |
| WMWelco Manufacturing Company | Kansas City | — | ◇ UNVERIFIED |
| WIWilcorp Inds INC -bil | Billings | — | ◇ UNVERIFIED |
| WCWohl Coatings Co-maple Ave | St. Louis | — | ◇ UNVERIFIED |
| 3M3609 Mojave Ct PlasmaDent | Columbia | 1–19 | ◐ LIKELY ACTIVE |
| 5A5th Avenue | St Joseph | 20–99 | ◐ LIKELY ACTIVE |
| 5A5th Avenue | Saint Joseph | 20–99 | ◐ LIKELY ACTIVE |
| AAgraForm | Saint Louis | 20–99 | ◐ LIKELY ACTIVE |
 Austin Powder Central States LLC - Fredericktown | Fredericktown | 20–99 | ◐ LIKELY ACTIVE |
| AAvient | St. Louis | 1–19 | ◐ LIKELY ACTIVE |
| AAvient | Saint Louis | 1–19 | ◐ LIKELY ACTIVE |
