Mr. Quah Siew Heng is the CEO and Executive Director of Trusted Source, a wholly owned subsidiary of Temasek Management Services (TMS) specialising in IT Services. He is responsible for the strategy and day-to-day operations of the company.

Siew Heng was previously Managing Director, ASEAN at Atos Origin. Over the course of 10 years there, he transformed the company from an IT department of Philips Electronics to a full-fledged commercial business unit as part of Philip’s initiative to create a new global leader in the IT Services sector. In the process, he successfully managed the post-merger integration of two acquisitions.

Prior to joining Atos Origin, Siew Heng spent close to 10 years with IBM in various sales, product management and general management positions. His last role in IBM was Services Business Executive for Singapore looking after all the services business including product support services; consulting and integration; and outsourcing and managed operations.

Siew Heng is an active community leader who has served for 25 years in numerous grassroots organisations. He also serves on the Home Detention Advisory Committee with the Ministry of Home Affairs.

Siew Heng received his undergraduate degree in Civil Engineering, as well as his MBA from the National University of Singapore.