| CCt-431 | Laramie County | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCt-621 | Fremont | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCt-621 | Fremont County | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCt-7216 | Campbell | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CACt-817 - Air Curtain Destruct | Hot Springs County | WY | Machinery Manufacturing333411 | — | ◇ UNVERIFIED |
| CCt-862a | Sweetwater | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCt-862a (hwy #1) | Albany | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CDCyclone Drilling INC | Wright | WY | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| D8Depatco 8035 Dry Batch Plant | Lincoln County | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DTDiamond Truss Fllc | Ralston | WY | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| DDDouble Diamond HCI LLC | Cheyenne | WY | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| DPDryden Property Management | Casper | WY | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DDura-line | Evansville | WY | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| ECEaton Corporation/lrc | Riverton | WY | Machinery Manufacturing333313 | — | ◇ UNVERIFIED |
| EBElk Basin Gas Plant | Park | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| EHEnergyCS Holdings, LLC | Gillette | WY | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| EIErshigs, INC. C/o Pacific CORP. Energy - Naughton Station | Kemmerer | WY | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| EEvanston | Evanston | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| EMEvanston Mill | Uinta | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| EPEvanston Plant | Evanston | WY | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| EFEvansville Facility | Natrona | WY | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| EMExero Mills Cement Plant | Mills | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ESExposure Signs INC | Jackson | WY | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| FSFairmont Supply CO | Gillette | WY | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| FTFalcon Technologies Systems LTD | Laramie | WY | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| FMField Maintenance Shop #2 (fms #2) | Albany | WY | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| FBForterra Bar Nunn Precast Yard | Casper | WY | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FUFort Union Activated Carbon F | Campbell County | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| FUFort Union Activated Carbon Facility | Campbell | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| FRFrank's Refrigeration: Indust | Gillette | WY | Beverage and Tobacco Product Manufacturing312113 | — | ◇ UNVERIFIED |
| FLFrannie Lime Plant | Park | WY | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| FTFrosted Tops, LLC | Casper | WY | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| GGencor #1 (ct-16056) | Teton | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GGencor #2 (ct-14276) | Laramie | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GEGeneral Electric Company | Gillette | WY | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| GNGeorge Nicholson Construction, Inc | Burlington | WY | Electrical Equipment, Appliance & Component Manufacturing335921 | — | ◇ UNVERIFIED |
| GCGillette Concrete Batch Plant | Campbell | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GHGillette Hot Plant Site | Campbell County | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GPGillette Plant | Weston County | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GPGlenrock Portable Concrete Ba | Converse County | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GGGranger Gas Plant | Sweetwater | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| GCGranite Canyon Quarry | Laramie | WY | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| HWHahn Welding: Industrial Drain | Gillette | WY | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| HAH and H Orin: Injection Wells | Cheyenne | WY | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| HCHarnischfeger Corporation: in | Casper | WY | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| HAHarold Allbright: Septic Syst | Wheatland | WY | Food Manufacturing311613 | — | ◇ UNVERIFIED |
| HPHelium Purification and Liquefaction Facility | Sublette | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| HMHenderson Meat Processing, Inc. | Lyman | WY | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| HFHenry Fork Plant Production Facility | Uinta | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| HSHf Sinclair Parco Refining LLC | Carbon | WY | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
