Marek joined McKinsey in 2016. He spent his first three years in the Warsaw office before moving to the London office, where he worked from 2021 to 2026. In August 2026, he returned to Warsaw.
He works with insurance and banking clients across Europe, the UK, and the Middle East, with a particular focus on improving operational efficiency and productivity. An important part of his work is helping organizations harness AI to transform how they operate. He is also active in McKinsey’s private equity & principal investors work, drawing on his firsthand experience at a London-based private equity firm.
Marek combines advisory and investment perspectives with entrepreneurial experience. He founded and led a start-up that developed an online marketplace for art.
He holds an MBA from London Business School, with an exchange at Columbia Business School in New York. He also graduated from the CEMS Master in International Management program and holds an MA in finance and accounting from the SGH Warsaw School of Economics, specializing in corporate finance.
Outside of work, Marek is passionate about cultural anthropology, film photography, and cinema, particularly films from the 1960s and 1970s.