| IMIesi Mo Champs Landfill | Maryland Heights, MO | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| JAJw Aluminum St. Louis | Saint Louis, MO | Paper Manufacturing322225 | — | ◐ LIKELY ACTIVE |
| KAKillark a Div of Hubbell | Fenton, MO | Electrical Equipment, Appliance & Component Manufacturing335931 | — | ◐ LIKELY ACTIVE |
| LFLighthouse for the Blind | Berkeley, MO | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| MCMarchem Corporation | Maryland Heights, MO | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| MRMidland Resources INC | Saint Louis, MO | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| PCPolynt Composites USA INC | Valley Park, MO | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| PAProcter and Gamble St. Louis | Saint Louis, MO | Chemical Manufacturing325611 | — | ◐ LIKELY ACTIVE |
| RCRiver Cement CO -buzzi Unicem USA - Selma Plant | Festus, MO | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| SCSaint-gobain Containers INC | Pevely, MO | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| SCSensient Colors LLC Jefferson Plant | Saint Louis, MO | Food Manufacturing311930 | — | ◐ LIKELY ACTIVE |
| SWShelter Works | Saint Louis, MO | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| TBThe Boeing CO | Hazelwood, MO | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| TMTrue Mfg Company INC | O Fallon, MO | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| VTVideojet Technologies INC | Belleville, IL | Chemical Manufacturing325910 | — | ◐ LIKELY ACTIVE |
| AMAdm Milling CO St Louis Mill | Saint Louis, MO | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| AIAmerican Italian Pasta Company | Saint Louis, MO | Food Manufacturing311823 | — | ◇ UNVERIFIED |
| ADAshland Distribution Company-st Louis Plant | Saint Louis, MO | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| BCBeltservice CORP | Earth City, MO | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| BMBrenntag Mid-south, INC. | Saint Louis, MO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CFCerro Flow Products LLC | Sauget, IL | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| CIChemline Inc-st. Louis | Saint Louis, MO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CPCommercial Plating CO | Saint Louis, MO | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CBCooper B-line INC | Highland, IL | Fabricated Metal Product Manufacturing332114 | — | ◇ UNVERIFIED |
| CPCupples Prods INC | Union, MO | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| DPDap Products, INC. - Pacific Facility | Pacific, MO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| EPEagle Packaging INC | Earth City, MO | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| ESEast Side Jersey Dairy - O'fallon, Il | O'fallon, IL | Food Manufacturing311511 | — | ◇ UNVERIFIED |
 Foam Supplies, INC. | Earth City, MO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| HIHammerts Iron Works-hammerts Iron Works | Saint Louis, MO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| HMHitchiner Manufacturing Company | O Fallon, MO | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| HJH J Enterprise INC | High Ridge, MO | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| HWHubbell - Wiegmann | Freeburg, IL | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| ICIntercon Chemical Co-intercon Chemical CO | Saint Louis, MO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| ISIpc St Louis-ipc St Louis | Saint Louis, MO | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| JSJd Streett & CO | Saint Louis, MO | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| KPKempen Paint CO | East Carondelet, IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MEMemc Electronic Materials INC | O Fallon, MO | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| MMMissouri Metals - Division of Samuel Son & CO USA INC | Saint Louis, MO | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| MIMozel INC | Columbia, IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MRM & R Plating INC | Washington, MO | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| NENewco Enterprises INC | Saint Charles, MO | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| NANorth American Galvanizing Company | Saint Louis, MO | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| OCO'brien Corp/cardinal Uhp | Saint Louis, MO | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| PHParker Hannifin Sporlan Div - Plant 1 | Washington, MO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PHParker Hannifin Sporlan Div - Plant 3 | Washington, MO | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| PIPetra Industries INC | Fairmont City, IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| POPoly One Corporation-st. Louis | Saint Louis, MO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| PMPro-tect Manufacturing CO | Saint Louis, MO | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| RBReliable Biopharmaceutical-walton Road | Overland, MO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
