About Diaan-Yi

Diaan-Yi is a senior partner of our Singapore office and a leader in our Public Sector, Private Equity & Principal Investors, and Capital Projects & Infrastructure practices in Asia. She also helps direct our work with sovereign-wealth funds in the region.

Diaan-Yi has worked extensively with government entities and government-linked companies in Singapore and across Asia.

Examples of her recent client work include the following:

  • designing and helping implement large-scale programs to drive performance transformation, accelerated digitization, and improved productivity across the public sector
  • working with sovereign-wealth funds and government entities to maximize value and transform performance across their portfolio companies
  • diagnosing critical gaps in infrastructure and setting up efficient, effective public–private partnerships to close those gaps and support economic development
  • advising an Asian government on detailed implementation plans to transform its pre-primary school system
  • supporting a public-sector institution on a major portfolio-management effort
  • helping develop a public–private partnership to increase employability among students and graduates

In addition to her public-sector work, Diaan-Yi has served clients in many industries—including financial services, telecommunications, logistics, energy, and retail—on a range of issues, such as strategy, corporate governance, and corporate finance.

Before joining McKinsey, Diaan-Yi worked as an investment banker at Credit Suisse First Boston in New York and London. She was a core member of the equity private-placements group and responsible for securing mandates, marketing transactions to potential investors, and structuring and pricing equity transactions for companies that required growth capital.

Published work

Making government for the people,” McKinsey & Company, June 2016

Implementing a citizen-centric approach to delivering government services,” McKinsey & Company, July 2015

Infrastructure productivity: How to save $1 trillion a year,” McKinsey Global Institute, January 2013

Improving performance at state-owned enterprises,” McKinsey & Company, May 2009


Harvard Business School

University of Cambridge
BA, MA, law