PES made a beginning in the year 1998, when Dr. Sunder took the responsibility of designing the seating systems for the "National Institute of Oceanography" in its new premises near Velachery..
In September 2003, PES was commissioned to evaluate workstations and chairs by "I-flex Solutions Limited", one of the leading software companies in India for its new facility at Bangalore. The products of over a dozen vendors were assessed and a comprehensive report prepared.
Ever since, Dr. Sunder and his team has evaluated workstations in the facilities of Scope eknowledge Ltd, Verizon Ltd, and Gujarat Paguthan Ltd. The crowning achievement came in 2014 when Dr. Sunder and his team did a complete ergonomic evaluation of the entire power plant at Jhajjar - Haryana, a process that took 12 days.
In February 2004, PES conducted a 4-day workshop for Visteon, the software subsidiary of Ford, in which a team of three professionals headed by Dr. Sunder, trained 30 Programmers, Team Leaders and Delivery Managers in exercise programs and 'break exercises'.
In April 2004, Dr. Sunder and his team evaluated workstations in the facilities of Verizon Ltd, located at Tidel Park and Guindy.