Last Updated on March 18, 2026
Whenever you prepare for case interviews, your goal should be simple: practice as realistically as possible and mirror the actual interview experience at McKinsey, BCG, Bain, and other top firms.
Important disclaimer:
Most case interview examples you find online are not representative of today’s consulting interviews. Many platforms advertise hundreds or even thousands of cases, but these are often generic, outdated, or overly simplified. They do not reflect how real interviews are conducted.
Quality > quantity.
A small number of high-quality, realistic cases will outperform hundreds of low-quality ones. In fact, relying on poor material can actively hurt your preparation by teaching the wrong patterns.
That’s why this page focuses on a curated selection of real cases provided by consulting firms. These cases help you understand:
- how different firms structure and run interviews
- what dimensions they actually evaluate
- what strong, interview-ready solutions look like
Using real cases allows you to align your preparation with how interviews are actually conducted today, not how they were years ago or how they are simplified in generic prep books.
Before spending money on large case collections filled with artificial examples, start with original firm material. Then, if you want to accelerate your progress, practice with experienced coaches who have interviewed for top firms and can provide targeted, actionable feedback.
Finally, keep in mind that case interviews are only one part of the process. You also need to prepare thoroughly for behavioral and fit interviews, which are equally decisive in getting an offer.
What Are Case Interviews?
Case interviews focus on realistic business problems used by consulting firms to evaluate how you think, not what you know.
They are designed to test a set of core capabilities that top candidates consistently demonstrate:
- problem solving: can you break down complex, ambiguous problems into clear parts
- analytical thinking: can you derive insights and implications from data
- quantitative reasoning: can you work through numbers accurately and efficiently
- communication: can you explain your thinking clearly and concisely
- business intuition: do your conclusions make practical, real-world sense
- maturity and presence: can you stay composed and confident under pressure
Unlike generic industry interviews, case interviews show how theory translates into actual on-the-job performance.
For your case prep, they bridge the gap between understanding concepts and executing under pressure, which is ultimately what determines whether you get the offer.
Let’s look at three condensed case examples and how a strong candidate is expected to work through them within a 20-25 minute interview.
Example Case: Customer Churn
Prompt
A global SaaS company has seen customer churn increase from 8% to 14% over the past year, significantly impacting recurring revenue growth. The CEO wants to understand the root causes and how to reduce churn.
How a Strong Candidate Approaches This Case
1. Framing the problem (first 30–60 seconds)
The candidate reframes: churn is increasing → this is a retention problem affecting revenue growth. They split drivers into product, pricing, customer segments, and competition.
2. Building a tailored structure (1–2 minutes)
Instead of a generic “revenue framework,” they structure around churn drivers:
- Customer segments (SMB vs enterprise)
- Product value (features, usability, reliability)
- Pricing and contract structure
- Competitive pressure
The structure is directly tied to churn mechanics, not generic buckets.
3. Driving the analysis (core of the case)
They hypothesize:
“Churn could be driven by SMB customers due to price sensitivity or low product stickiness.”
They then ask for the relevant data and analyze it:
- Segment churn → identify SMB as main driver
- Discover increased competition offering cheaper alternatives
- Identify low feature adoption among churned users
They follow the highest-impact segment first.
4. Synthesizing insights
“Churn is concentrated in SMB customers who do not fully utilize the product and are switching to lower-cost competitors.”
5. Delivering a recommendation
- Improve onboarding and feature adoption
- Introduce tiered pricing for SMBs
- Strengthen differentiation vs competitors
Example Case: M&A
Prompt
A private equity firm is considering acquiring a mid-sized healthcare provider network. They want to assess whether this is an attractive investment opportunity.
How a Strong Candidate Approaches This Case
1. Framing the problem
The candidate reframes: this is an investment decision driven by market attractiveness, company performance, and value creation potential.
2. Building a tailored structure
They structure specifically for PE:
- Market dynamics (growth, regulation, competition)
- Company performance (revenue, margins, cost structure)
- Value creation levers (cost optimization, expansion, pricing)
This is not a generic “M&A” or “profitability” framework.
3. Driving the analysis
Hypothesis:
“This could be attractive if margins are below peers and can be improved.”
They then:
- Benchmark margins vs competitors
- Identify operational inefficiencies
- Highlight consolidation opportunities
They focus on upside potential, not just current performance.
4. Synthesizing insights
“The company underperforms peers operationally but operates in a growing market with consolidation potential.”
5. Delivering a recommendation
- Proceed with acquisition if operational improvements are feasible
- Focus on cost optimization and network expansion
- Validate regulatory risks before final decision
Example Case: Market Entry
Prompt
A premium consumer goods company is considering entering the Middle East market. The leadership team wants to assess whether this is a viable growth opportunity, profitable, and feasible.
How a Strong Candidate Approaches This Case
1. Framing the problem
The candidate reframes: this is a market entry strategy case, requiring assessment of market attractiveness, entry strategy, and risks.
2. Building a tailored structure
They structure around entry-specific drivers:
- Market attractiveness (size, growth, customer segments)
- Competitive landscape (local vs global players)
- ROI (investment, revenue, operating costs, opporutunity costs)
- Entry strategy (channels, partnerships, pricing)
- Capabilities (distribution, production capacity, marketing and sales)
This is clearly tailored to the specific objectives, not a generic market entry framework.
3. Driving the analysis
Hypothesis:
“This is attractive if premium demand is growing, brand positioning can be maintained, market can be served profitably and required capabilites can be used/built.”
They then:
- Identify strong growth in affluent segments
- Analyze competitive positioning
- Determine revenue potential and profitability
- Evaluate reuqirements vs. current capabilities
They prioritize demand and feasibility first.
4. Synthesizing insights
“The market shows strong premium demand, but success depends on controlled brand positioning and local partnerships.”
5. Delivering a recommendation
- Enter via selective partnerships or flagship stores
- Maintain premium pricing to protect brand
- Pilot in key cities before scaling
Why These Case Examples Matter
Across all three cases, the pattern is consistent:
- No generic frameworks
- Immediate hypothesis and prioritization
- Focus on highest-impact drivers
- Continuous synthesis
- Clear, actionable recommendation
This is exactly how top candidates are expected to perform in real consulting case interviews.
How to Use These Case Interview Examples (Most Candidates Do This Wrong)
Most candidates approach case practice the wrong way. They consume content, but they don’t build the skills required to perform under real interview conditions.
Typical mistakes include:
- reading passively instead of actively solving
- memorizing frameworks instead of creating structure on the spot
- not simulating real interview pressure
- focusing on “getting the right answer” instead of showing clear thinking
- skipping reflection after completing a case
As a result, they understand the material but fail to execute when it matters.
Top 1% candidates take a fundamentally different approach:
- they pause after reading the prompt and treat it like a live interview
- they structure the problem independently before looking at any guidance
- they work through the analysis and form their own conclusions
- they compare their approach critically against a top-tier solution
- they identify specific gaps and actively improve them in the next case
Rule: Treat every case like a real interview.
That means thinking out loud, structuring under time pressure, and committing to an answer before checking the solution.
Over time, this approach builds what actually gets you offers:
- faster structuring
- clearer communication
- stronger intuition
- confidence under pressure
This is the difference between knowing how cases work theoretically and being able to solve them in the interview.
McKinsey Case Interview Examples
- Loravia – Transforming a national education system
- SuperSoda – Electro-light product launch
- GlobaPharm – Pharma R&D
- Bill & Melinda Gates Foundation – Diconsa financial services offering
- Beautify – Customer approach
- Talbot Trucks – Electric truck development
- Conservation Forever – Nature conservation
We have written a detailed article on the McKinsey application process, including links to articles on the McKinsey interview timeline, the typical McKinsey case interview, and the McKinsey Personal Experience interview. You can expect similar cases regardless of your position (e.g. in a McKinsey phone case interview or interviewing for a McKinsey internship as well as a full-time BA, Associate, or Engagement Manager role).
Boston Consulting Group (BCG) Case interview Examples
- Consumer Goods – Climate strategy
- Banking – Client satisfaction
- Consumer Goods – IT strategy
- Chateau Boomerang – Written case
Bain and Company case interview examples
Need more practice?
Check out our Case Interview Academy, featuring 14+ hours of in-depth video lessons covering structuring, chart interpretation, case math, communication, and more, plus hundreds of modern, up-to-date case drills designed to mirror today’s interview standards.
Deloitte Case Interview Examples
- Footloose
- Finance Strategy: Federal Health Agency
- LeadAuto: Market Expansion
- Talent Management: Federal Civil Cargo Protection Bureau
- Recreation Unlimited
- XFintec Inc. Ransomware Attack
- Data Exfiltration
- Applied AI, Automation, and the Future of Work
- Architecture Strategy: Federal Finance Agency
- Construction Delays: Project Analysis
- Industrial Warehouse Valuation
Strategy& Case Interview Examples
- Strategy& tips and examples (case examples included)
Accenture Case Interview Examples
- Accenture interview tips and examples (case examples included)
Kearney Case Interview Examples
Roland Berger Case Interview Examples
- Transit-oriented development Part 1
- Transit-oriented development Part 2
- 3D printed hip implants Part 1
- 3D printed hip implants Part 2
Oliver Wyman Case Interview Examples
LEK Case Interview Examples
- Video case interview example (currently unavailable)
- Market sizing video example (currently unavailable)
- Brainteaser (currently unavailable)
Simon Kucher Case Interview Examples
OC&C Case Interview Examples
Capital One Case Interview Examples
- How to crack case interviews with Capital One (includes case examples)
Bridgespan Case Interview Examples
- Robinson Philanthropy – Strategy
- Reach for the Stars – Student success
- Home Nurses for New Families – Expansion strategy
- Venture Philanthropy – Charity
Consulting Clubs Case Interview Books
Contact us at info@strategycase.com for a collection of consulting club case interview books (from Harvard, ESADE, LBS, Columbia, etc.).
Case Interview Examples by Type
Case interviews span a wide range of problem types. While they may look similar on the surface, each requires a different way of thinking, structuring, and analyzing.
Below are the most common categories you’ll encounter:
Market Entry & Expansion
- entering new markets or geographies
- launching new products or services
- scaling existing business models
Profitability & Growth
- revenue vs cost breakdown
- identifying drivers of decline or growth
- improving margins and unit economics
Market Sizing & Estimation
- sizing markets or demand
- building structured assumptions
- working through back-of-the-envelope calculations
M&A & Investment Decisions
- acquisition rationale
- synergy identification
- valuation logic and key risks
Pricing Strategy
- setting optimal price points
- willingness-to-pay analysis
- trade-offs between volume and margin
Operations & Optimization
- supply chain improvements
- process efficiency and cost reduction
- capacity and utilization optimization
Product & Strategy Diagnostics
- diagnosing underperformance of a product or business unit
- identifying strategic priorities
- deciding where to compete and how to win
Customer & Experience Cases
- improving customer satisfaction or retention
- analyzing churn drivers
- redesigning customer journeys
Public Sector & Non-Profit
- policy impact and feasibility
- resource allocation decisions
- balancing economic, social, and political constraints
Sustainability & Environmental Cases
- reducing emissions or environmental impact
- evaluating green investments
- balancing cost vs sustainability goals
Important: Memorized frameworks do not work.
Most candidates rely on memorized frameworks because they feel safe. They provide a starting point and reduce uncertainty. But in real interviews, they quickly become a limitation.
Why?
Because real cases are not designed to fit a predefined structure. They are designed to test whether you can create structure under ambiguity.
Frameworks can provide initial orientation, but beyond that they must be adapted, refined, and often rebuilt based on the specifics of the case.
Top candidates do not “apply frameworks.” They:
- start from the objective and define what actually matters
- identify the key drivers of value or risk
- build a bespoke structure tailored to the problem
- adjust their approach as new information emerges
Weaker candidates, in contrast:
- force-fit generic buckets like “profit = revenue – cost”
- ignore context (industry, client, objective)
- treat frameworks as checklists instead of thinking tools
This is why memorization fails. It optimizes for recall, while interviews test generation.
At the core, case interviews are about skills, not case types.
The case context is just a wrapper. What firms actually evaluate are underlying, transferable skills:
- analyzing charts and extracting insights quickly
- conducting math accurately under time pressure
- structuring ambiguous problems into clear components
- prioritizing what matters vs. what doesn’t
- communicating clearly and confidently
These skills are largely independent of the specific case type.
A candidate who can:
- break down a chart in 30 seconds
- run clean calculations under pressure
- articulate a clear, logical argument
will perform well across any case, whether it’s market entry, pricing, or public sector.
Each case type requires a different mental model.
A market entry case may require thinking in terms of market attractiveness and competition.
A pricing case may require understanding willingness to pay and trade-offs.
An operations case may focuse on processes, bottlenecks, and efficiency.
A public sector case may require balancing stakeholders and constraints.
There is no universal framework that works across all cases, and even within the same case type, the specific prompt determines how your structure should look. Avoid the mistake of memorizing framework; instead, focus on adapting your thinking to the problem at hand.
The real skill is knowing how to:
- break down any problem from first principles
- identify what truly drives the outcome
- build a clear, tailored approach on the spot
That is what consulting firms are testing.
And that is why the best candidates don’t sound like they are reciting a framework.
They sound like they are thinking.
Common Mistakes When Practicing Case Interview Examples
Most candidates use case examples in a way that feels productive but doesn’t translate into performance. They optimize for comfort and speed, not for skill-building.
Common mistakes include:
- reading instead of actively solving
- overusing frameworks instead of thinking from first principles
- ignoring communication and focusing only on content
- not practicing math under real time pressure
But the deeper issue goes beyond these behaviors.
Most candidates optimize for recognition and recall.
They read a solution, think “that makes sense,” and move on. This creates an illusion of competence, but no real capability.
In a real interview, there is:
- no prompt telling you what framework to use
- no clean structure waiting to be applied
- no solution to recognize
You have to generate structure, drive the analysis, and communicate clearly in real time.
The biggest mistake: thinking understanding = ability.
Understanding is passive. It happens after the fact, with full information.
Ability is active. It requires generating clarity under uncertainty, with limited time and constant pressure.
The gap between the two is where most candidates fail.
Closing that gap requires a different mindset:
- prioritize struggle over comfort
- force independent thinking before checking solutions
- treat mistakes as signal, not failure
Because in the end, interviews don’t reward what you recognize.
They reward what you can produce on the spot.
Case Interview Examples vs Real Interviews
Case interview examples are useful, but they are not the real interview environment. They are simplified representations, often cleaned up after the fact.
The key difference is not just difficulty. It’s how the problem unfolds.
Real interviews are:
- messier and less clearly defined, with incomplete or ambiguous information
- less structured, requiring you to create direction rather than follow one
- highly interactive, with the interviewer constantly probing, redirecting, and challenging your thinking
In examples, you see a linear story.
In interviews, you have to create that story yourself in real time.
This creates a fundamental shift:
- examples test recognition
- interviews test generation
That’s why static case examples alone are not enough.
They help you understand what good looks like, but they don’t train:
- handling interruptions
- adapting your structure mid-case
- defending your reasoning under pressure
Case examples are only step 1.
Step 2 = simulation: practice under realistic conditions with time pressure and interaction
Step 3 = feedback: identify blind spots and correct them quickly
Only when you combine all three do you develop the ability to perform consistently at interview level, not just understand how cases work.
Want More Realistic Practice?
Reading cases helps.
Getting the right skills first, then practicing with realistic material, gets you offers.
Most candidates get this backwards. They jump into random cases without building the core skills required to perform.
The result:
- no clear structure
- weak analysis
- no creativity
- inconsistent performance under pressure
The better approach:
- learn the right skills and mental models
- apply them using modern, realistic case material
- refine through feedback
Fix that with our Case Interview Academy: build the full skill set from the ground up, then practice with up-to-date case drills
The goal is not more practice. It’s the right practice, in the right order.
Developed by a former McKinsey consultant and top global case coach. The program features 14+ hours of in-depth video lessons covering structuring, chart interpretation, case math, communication, and other core interview skills.
You will also train with hundreds of modern, interview-level case drills designed to reflect current evaluation standards and build the clarity, confidence, and client-ready thinking interviewers expect.
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