1. Aker Solutions ASA
2. B.O.P Products LLC
3. Baker Hughes Company
4. General Electric Company
5. Halliburton Company
6. Helix Energy Solutions
7. NOV Inc.
8. Oceaneering International Inc.
9. Satyam Oilfield Equipments and Services
10. Schlumberger Limited
11. TechnipFMC PLC
12. Tianjin Soright Technology Development Co. Ltd.
13. Weatherford International PLC
14. Wild Well Control
15. Worldwide Oilfield Machine Inc.