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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

About Andy

Andy co-leads McKinsey’s M&A work and is our global transactions leader within the Strategy & Corporate Finance Practice, which includes mergers, acquisitions, joint ventures, and divestitures. He counsels senior leaders across the healthcare, medical-device, high-tech, and industrials sectors on all aspects of acquisitions and divestiture strategy, deal making, and integration.

Andy has extensive experience helping clients improve performance across the transactions value chain, from strategy and sourcing to diligence and integration. His passion also lies with supporting clients in driving large-scale commercial transformations through M&A, including redesigning the sales force, approaching marketing integration and strategy, building capabilities for enterprise selling, and driving cross-selling. He also has experience in restructuring, cost management, and large-scale reorganization and transformation.

As part of his work on global mergers, acquisitions, divestitures, and joint ventures, Andy helps senior executives realize the greatest possible value from transactions, large-scale transformations, and turnarounds. He has worked extensively in the Americas, Asia, and Europe.

Published work

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