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Marie-Claude Nadeau

Senior PartnerBay Area

Marie-Claude Nadeau

Senior PartnerBay Area

Advises executives in financial services, technology, and retail as they set effective growth and go-to-market strategies and build stronger customer loyalty

Marie-Claude leads McKinsey’s global payments work. She seeks to enhance and coordinate our advisory work helping financial-sector executives tap emerging opportunities in mobile, online, and prepaid payment.

With her close understanding of digital channels, Marie-Claude is attuned to the rapid pace of change championed by both financial- and technology-sector executives. In all her work, she looks to help executives get ahead of consumer trends and achieve profitability through strong strategic positioning. Advising companies across sectors as diverse as finance, travel, and retail, her recent projects include setting go-to-market strategy, designing effective loyalty marketing programs, and managing risk.

Examples of Marie-Claude’s recent client work include:

  • assessing the strategy and developing the business case for a digital-payments play at a large technology company
  • developing the business strategy for a global payments company, including designing their approach to mobile-enabled payments and their response to trends such as cryptocurrency and social commerce
  • conducting war game–type workshops with senior executives at an e-commerce and payments company to define a medium-term competitive response and strategy
  • crafting a consumer marketing strategy, aiding in early-tenure customer segmentation, and conducting innovation sessions at a digital payments company
  • analyzing data from approximately 100 million customers at a global digital-payments company to identify target segments and high-value actions, and launching and measuring the impact of targeted campaigns against those segments

Marie-Claude is a frequent author and speaker on emerging trends in digital payments and customer loyalty. Her insights have been featured in Forbes, the Harvard Business Review online, InnoTribe New York, and Money 2020. She coleads the firm’s research on women in the workplace in partnership with LeanIn.Org. Marie-Claude first joined the firm in Montréal and is fluent in French and English.

Published work

Fintechs: A new paradigm of growth,” McKinsey & Company, October 2023

On the cusp of the next payments era: Future opportunities for banks,” McKinsey & Company, September 2023

Green growth: Unlocking sustainability opportunities for retail banks,” McKinsey & Company, April 2023

Closing the gender and race gaps in North American financial services,” McKinsey & Company, October 2021

Stability in the storm: US banks in the pandemic and the next normal,” McKinsey & Company, May 2020

How dual-career couples find fulfillment at work,” McKinsey & Company, September 2019

Blockchain’s Occam problem,” McKinsey & Company, January 2019

Closing the gap: Leadership perspectives on promoting women in financial services,” McKinsey & Company, September 2018

Fraud management: Recovering value through next-generation solutions,” McKinsey on Payments, August 2018

Beyond the buzz: Harnessing machine learning in payments,” McKinsey & Company, September 2016

Digital wallets in the U.S.: Minding the consumer adoption curve,” McKinsey on Payments, October 2015

Gauging the disruptive potential of digital wallets,” McKinsey on Payments, May 2015


Massachusetts Institute of Technology
MS, technology and policy

McGill University
BEng, electrical engineering