?- Kuwait Petroleum Corporation
- Fugro Nv
- Kca Deutag Alpha Limited
- Saipem Spa
- SGS S.A.
- Senergy Holding Company Kpsc.
- National Energy Services Reunited Corp.
- National Petroleum Services Company Kscc
- Burgan Company For Well Drilling
- Gas And Oilfield Services Company (gofsco)