> Oil & Natural Gas Corporation Ltd.
> Engineers India Limited
> Mazagon Dock Limited
> BG Exploration & Production India Ltd.
> Larsen & Toubro Limited
> Hyundai Heavy Industries Co. Ltd.
> Iranian Offshore Engineering & Construction Company
> Bharat Petroleum Corporation Ltd.
> Hindustan Petroleum Corporation Ltd.
> Bharat Heavy Electricals Ltd.
> Great Eastern Shipping Co. Ltd.

> M/S. SAPURACREST Petrolum SDN BHD, Malaysia

> M/S. Sarku Engineering Services SDN BHD, Malaysia

> M/S. Shapadu Energy & Engg SDN BHD, Malaysia

> M/S. Clough Projects International Pty Ltd, Australia

> M/S Boustead Controls & Electronics Pte.Ltd, Singapore