McKinsey & Company case interview practice
McKinsey, in the room.
7 McKinsey & Company-style technology cases, each run live against an AI interviewer prompted with McKinsey & Company's own register, then scored 0–100 on structure, business acumen, quantitative reasoning and communication. Your first case is free.
Start your free caseHow McKinsey & Company runs a case interview
Top-down. MECE. Pyramid principle. Will reject any answer that lists six things instead of three. Asks for a hypothesis before any data is requested.
That is the register the interviewer holds for every case on this page: it asks one question at a time, pushes back when you hand-wave, will not summarise your answer for you, and closes with a partner-style scored evaluation that names the strong signals it heard and the red flags it did not.
What is in the bank
7 cases — 1 intermediate, 4 advanced, 1 medium, 1 hard. Typical length 25-35 min or 35-45 min. Topics: Strategy, Tech Consulting, Consumer / beauty retail, Public sector / financial inclusion, Industrial / automotive, Talent / Digital Transformation, Technology / Cloud Operations.
Cases are written in each firm's style, written and reviewed by working consultants; they are not the firms' own published cases.
McKinsey & Company cases
Saudi Telco Losing Postpaid Subscribers
A tier-1 Saudi telco. Postpaid annual churn has climbed from 4% to 8% over eighteen months while the two main competitors hold steady at 2%. Prepaid is flat.…
Global Bank Considering Cloud Repatriation
A global bank — $400M annual public-cloud spend, growing 35% year-on-year — has a board mandate to repatriate 40% of workloads to on-prem within three years.…
Beautify: should in-store beauty consultants use virtual channels?
A global beauty company is considering training in-store consultants to use virtual channels to connect with customers beyond the store.
Diconsa: should a rural retail network offer financial services?
Assess whether the Diconsa network in Mexico could be used to provide basic financial services to rural communities.
Talbot Trucks: should an OEM invest in electric trucks?
A European truck manufacturer is evaluating whether to invest in producing and selling electric trucks.
Develop an LLM talent strategy for a Fortune 500 company
A Fortune 500 technology company needs to upskill 30,000 employees in large language model tools and capabilities within 18 months. Leadership wants a roadmap…
Optimize cloud infrastructure costs for a SaaS unicorn
A $10B SaaS unicorn’s cloud spend is growing 40% annually while revenue grows 25%—cloud cost as a % of revenue is increasing. CTO needs a strategy to…
Read before you practice
Common questions
- Are these real McKinsey cases?
- No. Cases are written in McKinsey's style by working consultants; they are not McKinsey's own published cases. Where a case adapts a public sample, the case page cites the source.
- Can I practice a McKinsey technology case for free?
- Yes. The first case runs free with no signup or card. Paid plans are one-time payments for 30 days of access to the full case bank and scored reports.
- How is a McKinsey technology case different from a strategy case?
- The interviewer still wants a hypothesis before data, a MECE structure, and a pyramid-principle recommendation. The constraints are technical: cloud cost, data and model risk, operating-model change, and what the client does next.
Not affiliated with any firm. Cases are independent practice material inspired by public industry knowledge.