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Rebecca Kaetzler


Brings deep expertise in merger management and performance transformation to help executives manage culture, change, and organizational design to foster performance and health

Rebecca advises global companies seeking expert guidance on merger management and performance transformation, with a focus on culture, change management, organization design, and talent.

She has closely advised clients in industries and sectors ranging from pharmaceuticals, telecommunications, and media to financial services and advanced industries. Across Europe and the United States, Rebecca has assisted top executives through the challenging merger-integration process by helping them carefully mitigate risk, unlock sources of value, and focus on what matters most in integration planning.

Examples of her recent client work include the following:

  • helping a global healthcare company assess and align its R&D portfolio and associated processes in the context of a merger
  • helping a global financial-services company through the merger-management process, including by leading a cultural diagnostic and change program tied to key value drivers and by supporting the talent processes and operating-model design
  • facilitating top-team-alignment workshops for the board of a family-owned company to align on a new culture, mindset, and ways of working and to support a change program for a performance transformation
  • leading the integration-management office and directing the European portion of a worldwide merger for a major telecommunications and media company
  • facilitating the integration of sales forces and designing and implementing a new commercial model for a large medical-technology-company merger

Published work

The culture compass: Using early insights to guide integration planning,” McKinsey & Company, February 2024

Life sciences M&A shows new signs of life,” McKinsey & Company, February 2024

In conversation: Four keys to merger integration success,” McKinsey & Company, October 2022

Talent retention and selection in M&A,” McKinsey & Company, October 2020

Managing and supporting employees through cultural change in mergers,” McKinsey & Company, December 2019

Realizing the value of your merger with the right operating model,” McKinsey & Company, October 2019

The secret ingredient of successful big deals: Organizational health,” McKinsey Quarterly, July 2019

Organizational culture in mergers: Addressing the unseen forces,” McKinsey & Company, March 2019

Communications in mergers: The glue that holds everything together,” McKinsey & Company, January 2019

Bringing an animal health business into the fold,” McKinsey & Company, August 2018

Delivering a world-class integration in oil and gas,” McKinsey & Company, February 2017


Massachusetts Institute of Technology
MSc, mechanical engineering

Cornell University
BS, mechanical engineering