✓ GAIL (India) Limited, New Delhi

✓ Dorf Ketal Chemicals India Pvt. Ltd., Mumbai

✓ Gloazure Co. Ltd

✓ Hindustan Petroleum Corporation Ltd

✓ Indian Oil Corporation Limited, New Delhi

✓ Oil & Natural Gas Corporation Limited, New Delhi

✓ Osnar Paints & Contracts Pvt. Ltd., Mumbai

✓ Vasu Chemicals, Mumbai

✓ V A Tech Wabag Ltd, Chennai

✓ Wex technologies Pvt. Ltd., Pune

✓ Winn & Coales (Denso) Ltd., UK

✓ 3X Engineering pvt Ltd, Delhi

✓ Allied Engineers, New Delhi

✓ BSS Tech CP (I) Pvt. Ltd., Mumbai

✓ Clock Spring Company, USA

✓ Corrosion Control Services (B) Pvt Ltd., Mumbai

✓ Denso GmbH, Germany

✓ Grand Polycoats Co. Pvt Ltd, Vadodara

✓ Indraprastha Gas Limited, New Delhi

✓ Kansai Nerolac Paints Limited, Mumbai

✓ Corzan HO Industrial Systems (Lubrizol Advanced Material India Pvt Ltd)

✓ Mahanagar Gas, Mumbai

✓ Maharashtra Natural Gas Ltd.,Pune

✓ Metal Samples Company, USA

✓ Polyguard

✓ Rosen India Pvt Ltd

✓ Tinker & Rasor, USA

✓ Vee Kay Vikram & Co. LLP, Ahmedabad