ISO 9001
- Servus Limited
- Hydrocarb Trinidad Limited
- IWES Limited
- Trinsulate 2 Caribbean Limited
- New Island Corporation Limited
- Clamens and Associates (2000) Limited
- GMB Group Limited
Safety & STOW (up to April 2018):
- New Island Corporation Limited (NICL)
- Trinsulate 2 Caribbean Limited.
- Project and Maintenance Limited (PML)
- Poonam Engineering Services Limited (PESL)
- Instruplant Limited
- BUXO Trinidad Limited
- F.Khan Machine and Fabrication Shop Ltd
- Fluor Daniel
- Clamens & Associates Limited
- Francis Lau Construction
- RHI-O-TEC Limited
- Marine Consultants Limited (MCL)
- iSIMS
- Smart Vibrations Limited (SVL)
