- Umgeni water
- Amatola Water
- Rand Water
- Engen Refinery
- WSSA
- Swaziland Water Services Corporation
- ASW Engineering
- Valve and Allied
- Behr SA.
- Coca Cola-Swaziland
- DD Williamson
- Nine Kings
- CSV Consulting Engineers
- Muteo Consulting Engineers
- Polyweld Plastics
- UKhahlamba local municipality
- OR Tambo DM
- UThungulu DM
- UMzinyathi DM
- AB Projects
- UMgungundlovu DM
- UGU DM
