• Apex Clean Energy Holdings, LLC
• Associated General Contractors of SD, Inc.
• Basin Electric  Power Cooperative
• Bon Homme Yankton Electric Assn., Inc.
• Brenda G. Moore
• Central Electric Cooperative, Inc.
• Charles Mix Electric Assn., Inc.
• Clay-Union Electric
• Codington-Clark Electric Cooperative, Inc.
• Dean & Dixie Bibles Farm
• East River Electric Power Cooperative, Inc.
• Energiekontor US, Inc.
• FEM Electric Association
• Geronimo Wind Energy, LLC
• H-D Electric
• Jensen Crane Services
• L&H Industrial Inc
• Marmen Energy
• MFG-South Dakota
• Mitchell Technical College
• On Hand Development Corporation
• Parkview Energy
• RENEW Energy Maintenance LLC
• Rushmore Electric Power Cooperative, Inc.
• Savion Energy
• SD Assn. of Conservation Districts
• SD Electric Utility Companies
• SD Farmers Union
• Sioux Valley Energy
• South Dakota Rural Electric Association
• Southeastern Electric Cooperative, Inc.
• Spower
• Thorstad Companies
• Woods, Fuller, Shultz & Smith