1. ALBA LLC
2. Alicat Scientific Inc.
3. Baker Hughes Company
4. Botta Group Ltd.
5. Brace Tool Inc.
6. Cactus Inc.
7. Control Flow Inc.
8. FHE-USA
9. Frank Henry Canada
10. GCE Group AB
11. GKD Industries Ltd.
12. Honeywell International Inc.
13. Hunting PLC
14. Integrated Equipment Inc.
15. Miller Mechanical Specialties
16. Nexus Energy Technologies Inc.
17. NOV Inc.
18. Omega Pressure Control Equipment
19. Parveen Industries Pvt. Ltd.
20. Pressure Tech Ltd.
21. Schlumberger Limited
22. Sharpe Engineering Group
23. SMC Corporation
24. Stanley M. Proctor Company
25. Tasman Oil Tools
26. TechnipFMC PLC
27. The Weir Group PLC
28. TIS Manufacturing Ltd.
29. Weatherford International PLC