This is a profile image of Mark McMillan

Mark McMillan

Senior PartnerWashington DC

Leader in Digital McKinsey with expertise helping private- and public-sector clients develop digital strategies, manage large-scale transformational-change programs, and adopt customer-centric, digital technologies

Mark has almost 15 years of experience supporting private- and public-sector clients as they improve performance, focusing on the creative and efficient integration of technology. Since joining McKinsey in 2006, he has helped a mix of private-sector technology companies and government agencies navigate the challenges and opportunities presented by digital disruption.

In the private sector, Mark serves leading technology clients with strategy, sales and marketing, merger management, and organizational design.

In the public sector, Mark is a founding leader of McKinsey’s Digital and Value Assurance Practices, and helps federal and state agencies with digital strategy, digital transformation, agile development, and large-scale program management. In this role, Mark has led our knowledge efforts focused on the following:

  • developing digital strategies and enterprise-wide digital transformation programs
  • designing and setting up large technology programs for success
  • assessing and turning around troubled programs

In his role prior to joining McKinsey, Mark primarily supported clients’ large-scale IT-modernization efforts.

Published work

The impact of generative AI on Black communities,” McKinsey & Company, December 2023

How to close the Black tech talent gap,” McKinsey & Company, February 2023

The next chapter: Driving technology leadership in the public sector,” McKinsey & Company, February 2021

Managing large technology programs in the digital era,” McKinsey & Company, November 2020

Cracking down on government fraud with data analytics,” McKinsey & Company, October 2018

Developing talent for large IT projects,” McKinsey & Company, August 2014

Past Experience

Booz Allen Hamilton
Senior consultant


Columbia Business School

Princeton University
BSE, computer science engineering