Mr. Warnasuriya is a non executive director of ‘ Ewryn Warnasuriya and R A Fernando Holdings ( Pvt ). Ltd, which is a family enterprise, in which his father is the incumbent chairperson. This company engages in commercial activities through its many arms and operations.

He was a Finance Ministry appointed Independent Director to People’s Bank PLC. He is consulted and/or is an advised to several local and international commercial and corporate enterprises including the mobile telecom giant , Lyca Mobile Group.