He has assisted a number of multinationals with their Indian entry; these include Dun & Bradstreet, H.J.Heinz, Goldman Sachs, and Automobile Peugeot. He has also carried out a number of due diligence and business advisory assignments for foreign companies seeking to invest in India. He has considerable experience of internal audit.
Thomas is involved in various social services and was a Trustee of Pratham Education Trust, Mumbai for a number of years. He is currently on the Boards of Karunya Trust as well as of CA for Society. He is a Fellow of the Institute of Chartered accountants of India ( ICAI) and was a member of the Research Committee of ICAI.