- South Carolina Electric & Gas
- South Carolina Department of Transportation
- C.R. Jackson, Inc. / N.W. White & Company
- Carolinas Association of General Contractors
- Santee Cooper
- Sloan Construction Company
- Electric Cooperatives of South Carolina
- SET Solutions, LLC
- South Carolina Department of Labor, Licensing and Regulation
- South Carolina Association of Municipal Power Systems
- Duke Energy
- Progress Energy
