- Compression & Power Services (1988) Limited.
- SAS Marketing & General Contracting.
- EOG Resources Trinidad Limited.
- Weatherford Trinidad Ltd
- Coteel.
- Electrical Apparatus.
- Airport Authority of Trinidad & Tobago.
- Power for Rent Limited.
- Trinidad and Tobago electricity commission (TTEC)
- Telecommunications services of Trinidad and Tobago (TSTT)
- Barbados National Oil Company