As per the study for 2016, these three Indian companies have over a billion dollars in revenue from that stream.
In 2015, HfS had estimated TCS and Wipro's revenues from engineering services at slightly less than a billion dollars.
Meanwhile, French firms Altran and Alten took the top two spots. HCL, TCS and Wipro are at the fifth, seventh and eighth spots. Eight firms are in the over $1 billion club compared to six last year.
European players have dominated these charts, demonstrating high-end engineering and consulting capabilities in aerospace and automotive sectors and supporting its customers in key areas like advanced systems, aero structures, propulsion and modernising railway signalling systems.