- Philip Project Center (PPC) Nigeria Limited,
- Dorman Long Nigeria Limited,
- AMH Enterprises Limited, Portharcourt
- Zeberced Nigeria Limited, Abuja
- Brisk Services Limited, Portharcourt
- Arco Pipeline Limited, Portharcourt
- SGS, Portharcourt
- MINL Industries, Lagos
- Saffer Union (W.A) Limited, Lagos
- Obajana Cement Limited, Kogi State
- Arteferro Botnic Limited, Lagos
- Marbell Energy Limited, Lagos
- Fedoz Limited, Portharcourt
- Bestline Nigeria Limited, Portharcourt
- Powerex Limited, Lagos
- Africa Oil Services Limited, Portharcourt
- NAOC, AGIP