Board of Directors | About VIRTUS
Board of Directors

Board of Directors

VIRTUS has consistently led the way in bringing innovation to the industry and continues with its innovation roadmap, enabling customers to stay ahead of the curve in their own ventures.


Sio Tat Hiang


Mr Sio Tat Hiang is Chairman of the Board of ST Telemedia Global Data Centres (STT GDC) in Singapore. He is also Chairman of the Board of STT GDC in India, Vice-Chairman of the Board of GDS Services, Board Director of U Mobile and Advisor to STT for certain of its portfolio companies.

Mr Sio was Executive Director of ST Telemedia (STT) where he successfully led the company's transition to a new digital future. Under his leadership, STT strengthened its ecosystem by expanding into emerging enterprise tech and re-entering the data centre sector with the formation of STT GDC. A key member of STT’s founding team, Mr Sio played a vital role in laying the company’s strong foundation for long-term growth.

Prior to STT, Mr Sio had served in various senior roles at Singapore Technologies, including corporate finance and investment management.

Mr Sio graduated with a Bachelor of Business Administration with Honours from the former University of Singapore, and completed the Senior Management Programme at London Business School in the UK.

Neil Cresswell


With over 25 years of experience in the data centre, technology and banking industries, building successful, high growth, profitable businesses with a reputation for quality, innovation and customer service, Neil joined VIRTUS Data Centres as CEO in April 2013. Since 2013, Neil has grown VIRTUS from one data centre of 3MW to now being the number one London data centre provider. VIRTUS now operates 10 of London’s leading facilities providing over 160MW of capacity. His leadership has transformed VIRTUS into one of the most innovative and fastest growing data centre providers in Europe with customers including leading global organisations in the financial services, technology, media and education sectors. He is responsible for overall leadership, growth and development of VIRTUS.

Previously, Neil worked across UK, Europe, Asia and the U.S for companies such as BNP Paribas, IBM and Fiserv and was previously with Savvis (a leading global supplier of cloud and data centre service and a division of CenturyLink Inc), for 6 years, where he was Managing Director of the EMEA Region and the global financial services sector. He holds an honours degree in Business Studies from the University of Westminster and is a graduate of the Henley Business School Advanced Management Programme.

Lim Ah Doo


Mr. Lim is currently the chairman and independent non-­executive director of Singapore Technologies Marine Ltd, as well as an independent non-­executive director of ARA­CWT Trust Management (Cache) Limited, GP Industries Limited, SM Investments Corporation, Sembcorp Marine Ltd, U Mobile Sdn Bhd, Bracell Limited (formerly known as Sateri Holdings Limited), Singapore Technologies Engineering Ltd and STT GDC.

He also chairs the audit committees of ARA­CWT Trust Management (Cache), GP Industries and U Mobile, and is also a member of the audit committee of Singapore Technologies Engineering, Sembcorp Marine and SM Investments Corporation. He is also a member of the Ethics Sub-­Committee, Public Accountants Oversight Committee, Singapore. During his 18-­year distinguished banking career in Morgan Grenfell, Mr. Lim held several key positions including chairing Morgan Grenfell (Asia). He also chaired the Singapore Investment Banking Association in 1994. From 2003 to 2008, he was president and then vice-chairman of the RGM group, a leading global resource-­based group. Mr. Lim holds a bachelor's degree in engineering with honors from the Queen Mary College, University of London, and a MBA from the Cranfield School of Management.

Zulkifli Baharudin


Mr Zulkifli Baharudin is currently the executive chairman of Indo-Trans Corporation, a logistics and supply chain company. He also serves as a managing director of Global Business Integrators Pte. Ltd. Mr. Zulkifli is currently the Non-Executive Independent Director and Nominating Committee Chairman at Singapore Post Limited and the Non-Executive Independent Director at Ascott Residence Trust Management Limited. Mr Zulkifli also serves as a director on the Board of Ang Mo Kio Thye Hua Kwan Hospital Ltd., Thye Hua Kwan Moral Charities Limited, Singapore Management University, GB Vietnam Investments Pte. Ltd., Indo-Trans (Vietnam) Logistics Co. Pte. Ltd., GBI Capital Pte. Ltd. and Global Business Integrators Pte. Ltd. Mr. Zulkifli also serves as a Trustee of the Singapore Management University and is Singapore's Non-Resident Ambassador to Kazakhstan and Uzbekistan.

He was also the independent director of Mentor Media Ltd., which has extensive operations in China, from 1993-2014. From 1998 to 2004, Mr. Zulkifli was vice president of Asia of Eagle Global Logistics/Circle International. From 1995 to 1998, he served as Deputy Managing Director of Concord Express Logistics Pte Ltd. From 1991 to 1998, he was general manager of Scandinavia Warehouse Pte Ltd. From 1984 to 1991, he held various positions in the Singapore Government Service. From 1997 to 2001, he also served as a Nominated Member of Parliament in Singapore. Mr. Zulkifli received his bachelor's degree in estate management from the National University of Singapore.

Stephen Miller


Mr Stephen Miller is President & Group Chief Executive Officer of ST Telemedia (STT) since 1 January 2017. He is a member of the company’s Board of Directors. In his role as President & Group Chief Executive Officer, he is responsible for the company’s strategic direction, leadership and continued growth. Mr Miller joined STT in 2005 and has held various senior positions including Chief Financial Officer, and President & Chief Operating Officer. Prior to his current position, he was Consultant to STT for its portfolio companies.

Mr Miller played a crucial role in enhancing STT’s business competitiveness and asset portfolio while simultaneously maintaining prudent financial management. Before joining the company, Mr Miller was Financial Advisor to STT on the combination of its data centre business with Equinix and Pihana Pacific, creating of the world’s largest carrier-neutral data centre network.

Mr Miller has over 25 years of global investment, financial management, strategic planning and CMT industry experience. He spent over 14 years of his career in investment banking with Credit Suisse, primarily heading its telecommunications and media group throughout Asia and the Pacific. Mr Miller holds a Bachelor’s Degree in Commerce, with First Class Honours in Economics and Finance, from the University of New South Wales, Australia.

Bruno Lopez


Mr. Bruno Lopez has been a director of our company since 2015. Mr. Lopez is the chief executive officer and executive director of ST Telemedia's data center business—STT Global Data Centres (STT GDC). Over the past two years, Mr. Lopez has led ST Telemedia in its strategy to build a portfolio of integrated data centers across a global platform in Singapore, UK and also in China through GDS Holdings. Prior to joining ST Telemedia, Mr. Lopez held several senior operational and management positions in the telecommunications arm of Singapore-­listed conglomerate, Keppel T&T from 1995 to April 2014. In his last position in Keppel T&T, as the executive director and chief executive officer of Keppel Data Centres, Mr. Lopez was responsible for developing Keppel's data center business in Asia and Europe across key first-tier cities servicing some of the largest blue-chip customers.

In 2010, Mr. Lopez set up Securus Data Property Fund, a data centre-­specific investment fund focused on the acquisition of high quality data center assets in Asia­-Pacific and Europe. Prior to his departure from Keppel T&T, Mr. Lopez also played a key role in preparing the business of Keppel Data Centres for a REIT listing on the Singapore Exchange after establishing a data center development platform for future growth. He holds a bachelor's degree with honors from the National University of Singapore and a master's degree in human resource from Rutgers University.