ABB, Bombardier, Reliance, Birla Group, L&T, Shapoorji Pallonji, NHAI (National Highway
Authority of India), SEZ Projects, IPCL, ONGC, World Bank Funded Projects, Asian
Development Bank Funded Projects, Louis Berger, Alstom, Yokohama, PSP Projects,
Sadbhav Engineering (SEL), Fernas Construction, Military Engineer Services (MES),
Engineers India Limited (EIL)