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Alastair Hamilton


Leads McKinsey’s net-zero work in the United Kingdom and supports clients in the public and private sectors to build new green businesses

Alastair is a partner in McKinsey’s London office and serves public- and private-sector clients on sustainability and energy transition topics.

In the private sector, Alastair leads McKinsey’s work in the United Kingdom on climate technology with deep expertise in carbon capture, utility, and storage and hydrogen. This involves supporting a range of incumbents, investors, and new entrants as they look to capture the business opportunities provided by the transition to net-zero emissions.

In the past 12 months, he has served oil and gas majors, financial institutions, industrial clients, investors, and start-ups in multiple green energy situations.

Alastair also has extensive experience serving the public sector on strategy, sustainability, cost transformations, procurement, and people topics, typically focusing on improving sustainability, cost performance, and productivity. He is also a member of the Chartered Institute of Procurement & Supply (MCIPS).

Alastair is passionate about people development and social diversity and how these can be further advanced in McKinsey and beyond. Outside of his client work, he has established a network within the firm focused on furthering social diversity in McKinsey and consulting more broadly.


Fixing the ladder: How UK businesses benefit from better social mobility,” McKinsey & Company, January 2023

Scaling the CCUS industry to achieve net-zero emissions,” McKinsey & Company, October 2022

Target net zero: A journey to decarbonizing the public sector,” McKinsey & Company, August 2022

Protecting people from a changing climate: The case for resilience,” McKinsey & Company, November 2021

Opportunities for UK businesses in the net-zero transition,” McKinsey & Company, October 2021

Decarbonizing defense: Imperative and opportunity,” McKinsey & Company, July 2021

A low-carbon recovery is vital—and achievable,” McKinsey & Company, January 2021

Agile delivery of capital projects,” McKinsey & Company, September 2020

How a post-pandemic stimulus can both create jobs and help the climate,” McKinsey & Company, May 2020


Contracts manager


The University of Manchester
MS, environmental physics