The Southern regional division is composed of two entities:

• SLH South–East based on the merger of Ferrer–SLH, Ephta–Sebagec and OTBI;
• SLH South–West with Projetud.

For further information about each company:

• Ferrer–SLH
• Ephta–Sebagec
• OTBI
• Projetud (SLH South–West)