| RTRockin' T-Shirts by Dizzy Graphix LLC | Cheyenne | WY | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| RSRock Springs Coal Calcining Plant | Sweetwater | WY | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| RSRock Springs Fertilizer Complex | Sweetwater | WY | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| RKRoyce Kelley Sawmill | Saratoga | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SISafeway INC | Sheridan | WY | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| SMSaratoga Mill | Carbon | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
 Schlosser Signs INC. | Cheyenne | WY | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| SHSchwan's Home Service, Inc.: | Powell | WY | Food Manufacturing311520 | — | ◇ UNVERIFIED |
| SWSheridan Wood Products | Sheridan County | WY | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SCShute Creek Treating Facility | Lincoln | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SASimon Aesco Madsen Portable B | Laramie County | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASimon Aesco Madsen Portable Bc Plant | Laramie | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SCSimon Contractors | Laramie | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SPSimon Portable Bc Plant #5 | Crook | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SISimple Injection LLC | Casper | WY | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| SPSimplot Phosphates LLC | Rock Springs | WY | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| SCSips Coffee Company, LLC | Glenrock | WY | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| SISkyview Industrial Partnershi | Casper | WY | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| STSmith Tool Company: Industria | Casper | WY | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| SESnowy Elk Coffee Co. | Cheyenne | WY | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| SPSodium Products | Green River | WY | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| STSpidle Turbeco | Casper | WY | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| SVStar Valley Cheese Plant | Thayne | WY | Food Manufacturing311513 | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Pla | Buffalo | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Plant | Albany | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SHStationary Hot Mix Asphalt Plant (ct-1200) | Park County | WY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SPSteamboat Processing Facility | Converse | WY | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SCSti Construction Company, INC | Cheyenne | WY | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| SPStucco Plant | Big Horn | WY | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SESublette Energy Building: Ind | Big Piney | WY | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| SBSugar Beet Seed Coating Facil | Sheridan County | WY | Food Manufacturing311313 | — | ◇ UNVERIFIED |
| SBSundance Batch Plant | Crook | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SLSunroc Lagoon Concrete Batch Plant | Sweetwater | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SPSunroc Portable Plant 236 | Sweetwater County | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SESuperior Equipment & Service LLC | Sheridan | WY | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| STSwing Trucking Portable Crushing & Screening Equipment | Washakie | WY | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TMTable Mountain Ready Mix | Laramie | WY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| TSTen Sleep Brewing Co. | Worland | WY | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TSTen Sleep Brewing Co. | Ten Sleep | WY | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TSTen Sleep Brewing Co. | Ten Sleep | WY | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TSTen Sleep Brewing Co. | Worland | WY | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TBTeton Buildings LLC | Casper | WY | Wood Product Manufacturing321991 | — | ◇ UNVERIFIED |
| TITeton International | Casper | WY | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| TAThe Antler Shack | Lovell | WY | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| TQTietjen Quarry | Sheridan | WY | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| TMTommerup Machine Shop: Indust | Worland | WY | Machinery Manufacturing333518 | — | ◇ UNVERIFIED |
| TCTop Cut Manufacturing | Greybull | WY | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| TPTorrington Plant | Goshen | WY | Food Manufacturing311313 | — | ◇ UNVERIFIED |
| TITurbo Injection Service: Indu | Casper | WY | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| UPUpton Plant | Upton | WY | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
