| CRChemtrade Refinery Services INC - Riverton Plant | Riverton | WY | Chemical Manufacturing325180 | 20-99 | ● ACTIVE |
Atlas Carbon, LLC | Gillette | WY | Chemical Manufacturing325998 | — | ● ACTIVE |
Wyocomposites, LLC | Cheyenne | WY | Chemical Manufacturing325991 | — | ● ACTIVE |
Blue Maverik LLC | Afton | WY | Chemical Manufacturing325520 | — | ● ACTIVE |
Chemical Consultants LLC | Gillette | WY | Chemical Manufacturing325998 | — | ● ACTIVE |
Elixian Essence LLC | Lander | WY | Chemical Manufacturing325620 | — | ● ACTIVE |
Emz Group INC | Sheridan | WY | Chemical Manufacturing325612 | — | ● ACTIVE |
Garrison Minerals LLC | Cheyenne | WY | Chemical Manufacturing325180 | — | ● ACTIVE |
Van Diest Supply Company | Cheyenne | WY | Chemical Manufacturing325320 | — | ● ACTIVE |
| BLBpi Labs | Evanston | WY | Chemical Manufacturing325620 | — | ◐ LIKELY ACTIVE |
| YCY-tex Corporation | Cody | WY | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |
| DNDyno Nobel Inc-cheyenne Plant | Cheyenne | WY | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| DFDystar Foam Control | Cheyenne | WY | Food Manufacturing311999 | 1-19 | ◐ LIKELY ACTIVE |
| GRGreen River Sodium Products Plant (church & Dwight Inc) | Sweetwater County | WY | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| NCNalco CO - Evansville Plant 108 | Evansville | WY | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| SPSimplot Phosphates - Phosphate Fertilizer Plant | Rock Springs | WY | Chemical Manufacturing325311 | — | ◐ LIKELY ACTIVE |
| HGHilight Gas Plant | Gillette | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| NBNelson Brothers Mining Services LLC | Gillette | WY | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
Omega Industrial Supply, INC. | Cheyenne | WY | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| ASAurum Standards Group | Laramie | WY | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| FGFmc Granger | Granger | WY | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| FWFmc Wyoming Corporation - Green River Wyoming Facility | Green River | WY | Chemical Manufacturing325181 | — | ◐ LIKELY ACTIVE |
General Chemical | Green River | WY | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| OBOregon Basin Gas Plant | Cody | WY | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| EPEast Painter Facility | Uinta | WY | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| BEBenchmark Energy Products LLC | Rock Springs | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CDChurch & Dwight CO INC | Green River | WY | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CLCody Laboratories INC. | Cody | WY | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| ESEcho Springs Gas Plant | Carbon | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| HCHalliburton Casper Field Camp | Evansville | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HCHalliburton Casper Field Camp | Evansville | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MGMulti-chem Group, LLC Rock Springs Facility | Rock Springs | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
Nalco Company, Energy Services Division | Evansville | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NENalco Energy Services LP | Gillette | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SESelect Energy Services, LLC | Douglas | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SRSigma-aldrich Rtc | Laramie | WY | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| TMTetra Micronutrients-zinc Melting Furn. | Cheyenne | WY | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| VEViking Explosives LLC | Gillette | WY | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| WGWorland Gas Plant | Worland | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| WEWyoming Ethanol | Torrington | WY | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| APABW Plant - Rock Springs | Rock Springs | WY | Chemical Manufacturing325312 | 100-499 | ◐ LIKELY ACTIVE |
| CAChurch and Dwight - Green River Plant | Green River | WY | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |
| GFGillette Fill Plant | Gillette | WY | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| LILinde Inc 604 Green River | Green River | WY | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| LILinde Inc 618 Green River | Green River | WY | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| MSMining Services | Gillette | WY | Chemical Manufacturing325920 | 20-99 | ◐ LIKELY ACTIVE |
| 5B50 Buttes Plant | Campbell | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BCBairoil - Co2 Recovery Plant | Bairoil | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BCBeta Cdp | Carbon | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BMBlack Mountain Warehouse | Hot Springs | WY | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |