Justin Greis

Justin Greis is a partner in McKinsey & Company’s Chicago office. He leads McKinsey’s cybersecurity work in North America within the Risk & Resilience Practice, focusing on cybersecurity transformation, the cloud, technology strategy, and digital transformation. Justin designs builds and activates secure and trusted digital transformations to help each organization accelerate its company missions and protect its purpose. Justin brings a wealth of experience across a wide variety of industries.

Before joining McKinsey, he served as a cybersecurity transformation leader both globally and within the Americas for a consulting firm, where he helped clients assess, improve, and operate world-class cybersecurity programs. Justin was also a consultant in France, and before that, led the technology organization of a not-for-profit consulting group. Justin began his career as an entrepreneur after founding a digital consulting company that designed, built, and implemented dynamic websites, collaboration portals, and interactive digital service solutions.