1. IHI Corporation

2. Babcock & Wilcox Enterprises Inc.

3. Pressure Vessels (India)

4. Mitsubishi Heavy Industries
Ltd.

5. Samuel
Son & Co.

6. Alloy Products Corp.

7. Abbott & Co (Newark) Ltd

8. Doosan Corporation

9. Bharat Heavy Electricals Limited (BHEL)

10. Larsen & Toubro Limited