- NKT Germany & Sweden accredited: 33kV - 145kV
- Sumitomo (Japan) accredited: 115kV
- Lovink (Netherlands) accredited: 11kV - 33kV
- Euromold/Nexans (South Africa) accredited: 22kV - 33kV
- CIP (South Africa) accredited: 11kV - 33kV
- Tank, Raychem (South Africa) accredited: 11kV - 33kV
- DSG Canusa (South Africa) accredited: 11kV