Andrew Buay

CEO & Founder

Human Meridian Advisory

Andrew Buay is CEO and Founder of the Human Meridian Advisory. He is a coach and mentor to boards, leaders and organisations on strategy, governance, sustainability, and career and workforce transformation shaped by AI – with more than three decades of senior executive experience previously across the Singtel Group.

From 2013 to 2026, he served as Vice President of Group Corporate Sustainability, during which Singtel became an early pioneer in social innovation, climate scenario analysis (2014), Science-Based Targets initiative (2017) and TCFD‑aligned disclosures (2022). Under his leadership, the Group received the Singapore President’s Award for the Environment (2019), was named the President’s Challenge Social Enterprise Champion of the Year (2021), and was recognised in Steward Leadership 25 (2023). Andrew was named the No. 1 Sustainability Leader in Telecommunications in 2025 by Impact Leadership Magazine.

Since 1990, he has held diverse leadership and regional roles with the Singtel Group including CIO of Optus, COO of Globe Telecom, CEO of SingNet/Multimedia Group, and founding Head of Singtel Ventures, a pioneering S$150 million corporate venture capital technology investment fund.

Andrew has coached over 180 company leaders and mentored founders of tech and AI‑enabled social enterprises through the Singtel Group Future Makers programme. He serves on the Singapore Institute of Technology’s Industry Advisory Committee for sustainability education, and previously contributed to national strategies for the Singapore social services and disability sectors.

He is an accredited director with the Singapore Institute of Directors and an accredited coach with the Institute of Executive Coaching and Leadership. Andrew holds a First Class Honours (BA) from the National University of Singapore and an MSc in Management from Stanford University (Sloan Program).