| AGAir Gas--riverton | Riverton | WY | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| ALAmerican Lafrance LLC | Casper | WY | Transportation Equipment Manufacturing336112 | — | ◇ UNVERIFIED |
| ARAntelope Refining | Douglas | WY | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| BEBenchmark Energy Products LLC | Rock Springs | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BRBighorn Ready Mix | Greybull | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BOBobcat of Casper | Casper | WY | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| BCBp Casper Former Refinery | Casper | WY | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| BLBuckingham Lumber | Buffalo | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| CCCampbell County Concrete (re-181) | Gillette | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCasper Barrel & Drum | Casper | WY | Paper Manufacturing322214 | — | ◇ UNVERIFIED |
| CCaterpillar (cat) | Gillette | WY | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| CCetco | Lovell | WY | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CWCheyenne Wyoming Operations Center (cwoc), Northrop Grumman Systems Corporation | Cheyenne | WY | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| CDChurch & Dwight CO INC | Green River | WY | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CLCody Laboratories INC. | Cody | WY | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CTCowboy Timber Treating INC | Manderson | WY | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| CECrescent Electric | Casper | WY | Electrical Equipment, Appliance & Component Manufacturing335132 | — | ◇ UNVERIFIED |
| C3Croell 303 | Cheyenne | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CFCustom Fiberglass Shop | Casper | WY | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| ESEcho Springs Gas Plant | Carbon | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| ETEmit Technologies INC. | Sheridan | WY | Computer and Electronic Product Manufacturing334512 | — | ◇ UNVERIFIED |
| EMEvanston Mill (south & Jones Timber) | Evanston | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| EGEverett Graphics, INC. | Evanston | WY | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| FGFormer Gordon Oil Refinery | Greybull | WY | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| FTFormer Texaco Casper Refinery | Evansville | WY | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| GMGreiner Motor Company of Douglas | Douglas | WY | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| HCHalliburton Casper Field Camp | Evansville | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HCHalliburton Casper Field Camp | Evansville | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HAHillcrest Auto Body | Gillette | WY | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| HTHi Tech Auto | Saratoga | WY | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| ILIndustrial Lubricants CO | Casper | WY | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| IPInter-mountain Pipe and Threading | Mills | WY | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| JMJb Machine and Mfg. | Capser | WY | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| JGJoy Global Gillette Wy | Gillette | WY | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| JWJ. W. Williams, INC. | Casper | WY | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| KRKnife River Cheyenne | Cheyenne | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KRKnife River Materials Yard | Casper | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LDLagoon Drive Ready Mix | Rock Springs | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LLLewis & Lewis Inc., Asphalt Paving | Rock Springs | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MCMobile Concrete | Mills | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ 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 |
| NONational Oilwell Varco Distribution Services | Casper | WY | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NCNewcastle Concrete Batch Plant | Newcastle | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PLPete Lien & Sons, INC. - Jonathon Lime Plant | Laramie | WY | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| PPPioneer Press | Cheyenne | WY | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| STSchlumberger Technology Corporation | Cheyenne | WY | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SCSchroll Cabinets | Cheyenne | WY | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| SESelect Energy Services, LLC | Douglas | WY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
