1. AMETEK.Inc.
2. Ansa Data Analytics
3. Baker Hughes Company
4. CGG S.A.
5. Core Laboratories
6. DNV GL
7. Emerson Electric Co.
8. Expro Group
9. Geolog International
10. Halliburton Energy Services Inc.
11. Infosys Limited
12. Intertek Group PLC
13. Kappa Engineering
14. National Oilwell Varco Inc.
15. NuTech Energy Alliance
16. Oceaneering International Inc.
17. OilRock Technologies
18. PBQ Oilfield Services
19. Petrofac Limited
20. Ryder Scott Company LP
21. Schlumberger Limited
22. SDP Services Ltd.
23. Stratum Reservoir
LLC
24. Tracerco
25. Weatherford International PLC