1 Aker Engineering Malaysia Sdn Bhd
2 Cekap Technical Services Sdn Bhd
3 Environmental Resources Management (M) Sdn Bhd
4 Enserv Sdn Bhd
5 Emerson Process Management (M) Sdn Bhd
6 IFP Engineering Solutions Sdn. Bhd.
7 MECIP Global Engineers Sdn Bhd
8 MMC Oil & Gas Engineering Sdn Bhd
9 Ranhill Worley Parsons Sdn Bhd
10 RNZ Integrated (M) Sdn Bhd
11 Synergy Oil & Gas Engineering Sdn Bhd
12 T.EN CONSULTANT (M) SDN BHD.
13 Toyo Engineering & Constructions Sdn Bhd
14 Fluor Daniel International (M) Sdn Bhd
15 ICE Wood Sdn Bhd (Formerly known as Wood Group Engineering Sdn Bhd )(Wood Group Mustang (M) Sdn Bhd & Foster Wheeler E&C (M) Sdn Bhd merged together)
16 IGL Services Sdn Bhd
17 Kemuncak Lanai Sdn Bhd
18 Ertha Energy Sdn Bhd
19 NRC Engineering Sdn Bhd
20 MES (FAR EAST) SDN BHD