| AWAnderson Western, INC. | Hoven | SD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AEApex Electric & Sign LLC | Rapid City | SD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| AGAVPRO Global Holdings LLC | Sioux Falls | SD | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| BIBabl Industries, LLC | Black Hawk | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| BBBackspace Brewing Co., LLC | Yankton | SD | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BUBaking Up a Storm LLC | Sioux Falls | SD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BEBasin Electric Power Cooperative - Spirit Mound | Vermillion | SD | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| BMB &B Molding Inc | Brandon | SD | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BMB&B Molding Inc | Sioux Falls | SD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BLBear Lodge Custom Millwork, LLC | Whitewood | SD | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
 B&g Industries, INC. | Watertown | SD | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| BPBituminous Paving, INC. | Redfield | SD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BHBlack Hills Railings LLC | Rapid City | SD | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| BTBlack Tie Components LLC | Hartford | SD | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| BFBranson Family Holdings LLC | Rapid City | SD | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BFBrightmark Full Circle Rng, LLC | Hurley | SD | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BMBrightmark Mill Valley Rng, LLC | Milbank | SD | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| BSBruce Sign Company | Sioux Falls | SD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| BRBuffalo Ridge Brewing Project, LLC | Hartford | SD | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CPCemcast Pipe and Precast, LLC | Hartford | SD | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CMCenterville Manufacturing LLC | Centerville | SD | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CSCentral States Manufacturing, INC. | Hartford | SD | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CNChs Nutrition - Ethan | Ethan | SD | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CBCohort Black Hills, LLC | Hill City | SD | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CSColor Splash Studio, LLC | Tea | SD | Textile Mills313310 | — | ◇ UNVERIFIED |
| CMComponent Manufacturing Company | Sioux Falls | SD | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| CMConcrete Materials - Chancellor Ready-mix Plant | Chancellor | SD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CMCreative Metal Solutions, Inc. | Sioux Falls | SD | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CPCreative Printing, Inc. | Huron | SD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CSCrystal Springs Feeds, LLC. | Clear Lake | SD | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CPCtrl P, LLC | Sioux Falls | SD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CNCupcakes N' Schmitt LLC | Rapid City | SD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| CECutting Edge Components, LLC | Black Hawk | SD | Transportation Equipment Manufacturing336991 | — | ◇ UNVERIFIED |
| DFDairy Farmers of America, INC. - Pollock, Sd | Pollock | SD | Food Manufacturing311513 | — | ◇ UNVERIFIED |
| DBDakota Biochar LLC | Rapid City | SD | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| DBDakota Butcher - Rapid City, Inc. | Rapid City | SD | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| DCDakota Cable Solutions Inc. | Piedmont | SD | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DFDakotaland Feeds, LLC | Cavour | SD | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| DPDakota Provisions West | Huron | SD | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| DTDakota Turkey Growers, L.l.c. | Huron | SD | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| DWDakota Western Corporation | Sisseton | SD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DWDakota Woodworking, INC. | Eureka | SD | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| DPDeHaai's Processing | Chamberlain | SD | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| DCDynamic Cylinder Head LLC | Worthing | SD | Transportation Equipment Manufacturing336310 | — | ◇ UNVERIFIED |
| ELEasi-pour, LLC | Huron | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| EBEdwin Besestre | Sioux Falls | SD | Food Manufacturing311813 | — | ◇ UNVERIFIED |
| EPEmberline Press | Aberdeen | SD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| EMEnclose Manufacturing, Inc. | Mitchell | SD | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ETEngineered Truss Systems | Brandon | SD | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| EMEureka Manufacturing | Eureka | SD | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
