About Diaan-Yi

Diaan-Yi is managing partner of our Singapore office and a leader in our Public Sector, Private Equity, and Capital Projects & Infrastructure Practices in Asia. She also helps direct our work with sovereign wealth funds in the region and has worked extensively with government entities and government-linked companies in Asia, particularly on the design and implementation of large-scale programs to drive performance transformation and economic development. She also specializes in setting up efficient and effective public-private partnerships.

Diaan-Yi is an expert in building alignment among multiple government entities. Examples of her recent projects include 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, and helping develop a public-private partnership to increase employability among students and graduates. In addition to her public-sector work, she 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 in 2002, 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, responsible for securing mandates, marketing transactions to potential investors, and structuring and pricing equity transactions for companies that required growth capital.

Published work

China’s role in the next phase of globalization,” McKinsey Global Institute, April 2017

How robots, the gig economy, and social tools are reshaping jobs in Singapore,” LinkedIn, October 2016

Why Singapore’s global outlook is the key to its future,” LinkedIn, September 2016

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 Quarterly, May 2009

Past experience

Credit Suisse First Boston
Investment banker

Barclays de Zoete Wedd


Harvard Business School

University of Cambridge (Trinity Hall)
BA, MA in Law