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Andy West

Senior Partner, Boston

Brings deep experience to bear in helping mergers and acquisitions deliver growth through effective integration and new structures and governance


Andy coleads McKinsey’s M&A work globally, which includes mergers, acquisitions, integrations, joint ventures, and divestitures. He counsels senior leaders across many sectors—including healthcare, medical devices, high tech, and industrials—on all aspects of acquisitions and divestiture strategy, deal making, and integration.

Andy has extensive experience helping companies improve performance through M&A, from portfolio strategy and sourcing to diligence, integration, and separation. He has a particular passion for supporting clients in building capabilities, driving large-scale transformations, and delivering the full potential of growth-focused deals through marketing and sales acceleration. He also has experience in restructuring, cost management, and large-scale reorganization and transformation.

Andy has worked extensively in the Americas, Asia, and Europe.

Published work

Are you chasing the right digital assets?,” McKinsey & Company, December 2021

Achieving win-win spin-offs,” McKinsey & Company, October 2021

Agile business portfolio management,” McKinsey & Company, October 2021

Why you’ve got to put your portfolio on the move,” McKinsey Quarterly, July 2020

The power of through-cycle M&A,” McKinsey & Company, April 2020

Repeat performance: The continuing case for programmatic M&A,” McKinsey & Company, July 2019

Understanding how US tax reform will affect divestitures,” McKinsey & Company, April 2018

A deal-making strategy for new CEOs,” McKinsey Quarterly, April 2017

Managing the market’s reaction to M&A deals,McKinsey on Finance, May 2016

How the best acquirers excel at integration,” McKinsey on Finance, January 2016

M&A 2015: New highs, and a new tone,” McKinsey on Finance, December 2015

How M&A practitioners enable their success,” McKinsey on Finance, October 2015

M&A as competitive advantage,” McKinsey Quarterly, August 2013

Taking a longer-term look at M&A value creation,” McKinsey Quarterly, January 2012

Past experience

Summer consultant

Ernst & Young
Senior consultant


Kellogg Graduate School of Management, Northwestern University
MBA, finance, entrepreneurship, and strategic management

Washington University
BA, political science and economics