Menon's first job was as a statistician for the Thackersey Mooljee Group, a Mumbai-based company which oversaw textile mills.
As an employee of Chandaria Group, he set up Multi Tech Systems, which merged with Venture Manufacturing Singapore Ltd in 1989.
After becoming a successful entrepreneur, he returned to Kerala with a proposal to set up a Rs 6,000-crore petrochemical complex at Kasaragod, which was unsuccessful.
[1] Other Indian companies he was involved in were Dexcel Electronic Designs, Bangalore and Customer Line, Kochi.
The company was a manufacturer of the suspension assembly, a component used in the read/write heads of computer hard disk drives.