Our leadership

Bruno Lopez is President and Group Chief Executive Officer of ST Telemedia Global Data Centres (STT GDC). He has been responsible for the overall leadership, direction, growth, and development of the STT GDC group since its inception in 2014. He is also concurrently Deputy Chief Executive Officer at ST Telemedia (STT).

Under his leadership, STT GDC has become one of the fastest-growing data centre providers in Asia and Europe. The company has built a substantial portfolio of integrated data centres across a global platform serving all the major cloud service providers and enterprises in Singapore, India, Thailand, South Korea, Indonesia, Japan, Malaysia, and the Philippines; through VIRTUS Data Centres in the UK and Germany, and GDS in China. In addition to his role as President and Group CEO, Bruno also sits on the Board and chairs the Executive Committees in all these companies.

Bruno has been instrumental in steering the company to achieve market leadership in significant economies, solidifying the STT GDC group's reputation as a prominent player in the global data centre industry. An industry veteran with over 30 years of experience in the telecommunications and data centres industry, Bruno was most recently named to Capacity Media’s 2023 Power 100 list, recognising his contributions to the wholesale carrier and ICT industry.

Bruno’s track record includes founding roles as the CEO and Executive Director of Keppel Data Centres where he played a key role in building up the company's growth and expansion in Asia and Europe. He also established the Securus Data Property Fund, an investment fund focused on data centre assets in the Asia-Pacific region, Europe, and the Middle East, which later merged with Keppel Data Centres' assets during the company's SGX REIT listing.

Bruno holds a Bachelor of Arts degree with Honours from the National University of Singapore and a Master’s from Rutgers University, USA.

Nelson Lim is Group Chief Financial Officer of ST Telemedia Global Data Centres (STT GDC). He is responsible for the overall financial planning and management of the STT GDC group.

Prior to STT GDC, Nelson held various leadership roles in Dell at the country level (Singapore and USA), regional and global levels, where his last appointment was Finance Executive Director, Dell Global. During his 17 years with the company, Nelson oversaw financial controllership and investment strategy, as well as organisation restructuring and transformation. Prior to Dell, Nelson held financial and business leadership positions at Hewlett Packard and KPMG.

Nelson is an Accountancy graduate from Nanyang Technological University in Singapore and a certified Chartered Accountant.

In the role of Chief Executive Officer - Southeast Asia at ST Telemedia Global Data Centres (STT GDC), Lionel Yeo is responsible for leading and growing our data centre business across Singapore, Thailand, Indonesia, and other new markets, as well as driving commercial strategy and product development in Southeast Asia.  Lionel also served as VP for Corporate Development and Investments where he was responsible for new market investments, operational setup and strategy for the Group.  Prior to that, he was General Manager for STT Tai Seng in Singapore, following a joint venture deal where he led the operational transition of the data centre business.

Lionel has held various leadership roles across investment, operations, asset management, product and strategy in the data centre industry. Prior to joining STT GDC, he was Vice President, Investments in Keppel where he led and managed the development of data centre assets across Singapore and Australia.

Lionel holds an Executive MBA from UCLA-NUS and Bachelor of Accountancy with Nanyang Technological University in Singapore. 
 

As Group Chief Operating Officer, Thomas is responsible for helping drive the company’s strategic growth, optimising our operating capabilities and managing data centre assets across the Group.  Additionally, he provides leadership oversight for the Northeast Asia markets. 

Thomas brings a wealth of experience, having previously worked in businesses managed by the Macquarie Asset Management group across various roles, including board directorships and senior management positions at telecommunications and data centre businesses operating in the Asia Pacific region. In Taiwan, Thomas served as the CEO of Taiwan Broadband Communications (which was listed in Singapore in 2013) and later assumed the role of Executive Chairman. During his tenure, he successfully transformed various lines of businesses and operations across different regions into an integrated enterprise. Thomas also spent a decade with Starhub starting in 1997, where he last held the position of Senior Vice President, Cable, Fixed & IP Services.

Thomas holds a Bachelor’s degree in Electrical and Electronic Engineering and a Master’s degree in Mechanical Engineering from Nanyang Technological University.

Dato' Praba Thiagarajah, Founder and Executive Chairman of Basis Bay, is an esteemed technologist with deep roots in the IT sector, spanning 27 years. He boasts an academic foundation with degrees from the University of Malaya and the University of Oxford, alongside business qualifications from Heriot-Watt University. At IBM and NEC, he gained substantial experience before founding Basis Bay in 1996, which now serves over 300 clients, primarily in the financial sector.

Under his leadership, Basis Bay set up Asia’s first Green Data Centre in 2009, championing sustainable cloud and IT infrastructure services that have spanned 50 locations in 25 countries. A celebrated speaker and professor, Dato' Praba's numerous accolades underscore his commitment to Clean IT and anti-corruption, reflecting his belief in ethical governance and technological responsibility.