Sri Lanka Deva's family has extensive business interests in Sri Lanka including tea, rubber and coconut plantations as well as a distillery and residential property. Deva is a director of Waulugalle Distilleries Limited, Serene Residencies (Private) Limited and the
family trust. Deva holds directorships of a number of Sri Lanka's largest companies. He is a director of conglomerate
Aitken Spence PLC. He was appointed a non-executive director of
Aitken Spence Hotel Holdings PLC, a subsidiary of Aitken Spence PLC, with effect from 1 July 2010. He was appointed to the board of directors of MTD Walkers PLC with effect from 29 February 2012. He is a director of
Distilleries Company of Sri Lanka PLC and its subsidiary Melstacorp Limited. He is also a director of The Kingsbury PLC (formerly Hotel Services (Ceylon) PLC), a subsidiary of
Hayleys PLC.
United Kingdom Deva is a shareholder, director and chairman of Symphony Environmental Technologies PLC, a company
listed on the
Alternative Investment Market. He received a salary of £42,000 in 2013 for being chairman. He is also a director of two of the company's subsidiaries, Symphony Recycling Technologies Limited and Symphony Plastics (2010) Limited. He is also currently director of Deva Imperial Limited, Monte Zita Limited and Stassen Teas Limited. He had previously been director of Airlines of the World Limited, Budget Hotels Limited, CMB Technologies Limited, Corporate and Public Affairs Strategy Limited, First European Communications Corporation Limited, Global Business Link Limited, International Management Consulting Group Limited, P.P.A.I. Limited, Policy Research Centre for Business Limited, Project Management (Balaton) Limited, Serendib Business Investments Limited, Speed Promotions Limited, Winfotech Europe Limited and World Corporate Travel Buyers Club Limited. ==Other roles and activities==