What L.E.K. Consulting actually looks for
L.E.K. Consulting was founded by former Bain partners and has built a strong reputation specifically in private equity due diligence work, commercial due diligence for firms considering an acquisition, alongside broader corporate strategy consulting across sectors like healthcare, consumer products, and industrials. Because so much of the firm's work involves helping private equity clients decide whether to buy a company, interviewers for case interviews often frame problems around evaluating a target company's market position, growth potential, and risks, closer to an investment thesis than a typical growth strategy case. The firm is smaller and generally considered less hierarchical than the largest strategy firms, and interviewers tend to value candidates who show strong quantitative rigor and can move fast, since PE due diligence work often runs on compressed deal timelines. Fit interviews at L.E.K. still matter, but the firm places real weight on raw analytical horsepower given the commercial due diligence work it's known for.
Common questions and how to answer them
A private equity client is considering acquiring a mid-sized company in an industry you're not familiar with, how would you assess whether it's a good investment? is a classic L.E.K.-style case, and strong answers structure the problem around market attractiveness, competitive position, and growth drivers, mirroring real commercial due diligence work. How comfortable are you working under tight deadlines with limited information? reflects the compressed timelines typical of PE-driven consulting engagements. Walk me through a time you had to make a recommendation with incomplete data tests judgment under uncertainty, a skill L.E.K. consultants use constantly given how fast due diligence engagements move.
How to prepare
Practice case interviews with a specific focus on market sizing, competitive assessment, and growth potential, since these map directly to the commercial due diligence work L.E.K. is known for, more so than general growth strategy cases. Read a little about how private equity due diligence actually works, what a PE firm wants to know before acquiring a company, since understanding your client's real motivation will make your case answers sharper. Be ready to work quickly through ambiguous problems in the interview itself, speed and quantitative rigor are explicitly valued at L.E.K.