South Carolina
- Boilermakers National Apprenticeship Program (BNAP) South-eastern Area – Boilermakers Field Construction/Repair Apprenticeship
- Carolinas AGC: Construction Organization
- Horry-Georgetown Technical College
- South Carolina State Unions
- Southeastern Carpenters Training Trust (Georgia, North Carolina, South Carolina)
- Southeastern Line Constructors Apprenticeship & Training – SELCAT
- Southern States Apprenticeship Labor-Management Council (SSAC)
- The United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry – Local Carolinas 421
