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Case interview examples – mckinsey, bcg, bain (mbb), deloitte, etc..

consulting case interview sample

Case interview examples – McKinsey, BCG, Bain (MBB), Deloitte etc.

Consulting firms like McKinsey, BCG, Bain ( MBB ), Deloitte etc. use the case interview process to assess candidates. It is very difficult to be invited to a consulting case interview, especially with McKinsey, BCG, Bain and Deloitte. And it is even more difficult to do well at case interviews without preparing for them properly. And there are a lot of free case interview examples out there, but it’s difficult to know where to start. So in this article we have listed some of the best free consulting case interview examples available, in one place.

We will cover interactive case interview samples provided by consulting firms, video case interview examples, case books, and materials developed by the team here at FIRMSconsulting.

Before we dive into business case examples, we would like to share with you 2 free resources we prepared for you as a gift, based on FIRMSconsulting book on brain teasers and another FIRMSconsulting book on solving business cases and overall consulting case interview preparation. These downloads include 20 brain teasers including explanations on how to approach solving each of those brain teasers. It also includes a comprehensive estimation cases guide. Estimation cases are very often used in consulting, either as a separate case or as part of a larger case. As part of your preparaton for consulting case interviews, you will certainly come across various estimation cases. It is crucial for you to learn how to solve them. You can get links to download copies of both resources below. It is completely free. Get it now and thank us later. Enjoy!

FREE GIFT #1 BONUS TUTORIAL DOWNLOAD – 20 Brain Teasers With Answers And Explanations: CLICK HERE

Free gift #2 bonus tutorial download – a comprehensive estimation cases guide: click here.

consulting case interview sample

1. McKinsey case interview examples

2. BCG case interview examples

3. Bain case interview examples

4. Deloitte case interview examples

5. Accenture case interview examples

6. Strategy& / PWC case interview examples

7. A.T. Kearney case interview example

8. Oliver Wyman case interview examples

9. OC&C strategy consultants case interview examples

10. Capital One case interview examples

11. General case interview examples

12. Consulting clubs case interview examples

Structured case interview preparation approach is needed

If you haven’t done so already, remember to get your copies of 2 free resources we prepared for you that will help you in your consulting case interview preparation. Free gift #2 also includes another free case interview example, an estimation case example with a detailed answer. Please see links below:

If you would like to fast track your case interview preparation and maximize your chances of getting an offer from McKinsey, BCG, Bain, Deloitte etc, we welcome you to train with us. The Consulting Offer program, which is a part of Premium membership , was designed specifically for this purpose.

There is nowhere else in the world where you can see real candidates trained by former partners from major consulting firms. You will see the candidate’s progression through each step of the case interview preparation process. And you will see candidates receiving real offers from McKinsey, BCG, Bain, Deloitte etc.


FOUNDATIONAL PROGRAMS AKA CASE INTERVIEWS: TCO Solution Videos TCO I, Felix, McKinsey Offer TCO I, Sanjeev, joins BCG TCO I, Rafik TCO I, Samantha TCO II, Alice Qinhua Zhou joins McKinsey NYC, trained by Kevin P. Coyne TCO II, Michael Klein TCO III, Jennifer Nwankwo joins Bain TCO III, Zach Steinfeld joins Deloitte S&O TCO IV, Assel joins McKinsey TCO IV, Tom & The Experienced Hire Program TCO IV, Sizan & Prepares for McKinsey & BCG TCO V, Ritika Mohan joins McKinsey Insights from Coaching & TCO

CORE STRATEGY: DETAILED: How McKinsey, BCG et al. Runs an Engagement (275 videos) First 90 Days in Consulting Business Case Analysis

All conveniently available as: 900+ hours of partner-led training No Internet required. Sync videos to watch offline, or connect with Wi-Fi, 3G, and 4G Push App to the background and play audio Streaming videos Automatically beam videos from your phone to your Chromecast or AirPlay-enabled devices Create playlists Pick up where you left off

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consulting case interview sample

Do you want to work in the management consulting industry? Do you have an upcomming job interview with a management consulting firm such as McKinsey, BCG, Bain, Strategy& (formerly Booz), Deloitte, Mercer, Monitor, PWC, Accenture, Roland Berger, L.E.K, A.T. Kearney, or others? If you answered yes to either of these questions then you are about to face several rounds of challenging 'Case Interview s'. But d on't worry, you have come to the right place. We'll help you ace the case! For over 10 years has been the best source of management consulting case interview questions on the internet . You can access some free sample case interview questions to build your analysis skills or just go right ahead and purchase the popular Ace The Case guide (2015 edition) to truly gain the edge in your next management consulting job interview. Don't be the candidate who misses out on their dream job because you did not properly prepare for the rounds of challenging case interviews that lie ahead on your path into the rewarding career of management consulting. Our 200 page Ace The Case guide (2015 edition) will help you to prepare for a variety of different styles of management consulting case interviews. Inside it you will find 100 practice case interview questions with detailed worked solutions to more than half of them, including tips, tricks and hints along the way. Many of the case interview questions within our Ace The Case guide (2015 edition) have been sourced from real life management consulting interviews experienced by the 3 authors. Together we understand the recruitment process of top management consulting firms because we've worked inside them and now regularly interview candidates just like yourself. You are therefore getting expert case interview advice from those who have walked in your shoes.

Our Ace The Case guide (2015 edition) contains many chapters covering everything from Case Interview Skills, Market Sizing & Estimation Cases, Business Problem & Logic Problem Cases, through to Data & Chart Cases as well as Case Interview Narratives transcribed to give you a unique fly on the wall perspective of the case interview process. The guide also takes a unique global focus with a variety of different questions taken from regions such as the USA, the UK, India, Canada and even Australia. So go on, what are you waiting for? Purchase Ace The Case (available as an e-book for immediate digital delivery!) today if you want the edge in your next management consulting case interview .  

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Case Interview Examples for Consulting Interview Prep (2023)

  • Last Updated May, 2023

Rebecca Smith-Allen

Former McKinsey Engagement Manager

How to Use Case Interview Examples

Video Case Interview Example: Questions & Answers

Tips for Acing Your Case

Free Case Interview Examples (Consulting Firms)

Free Case Interview Examples (Consulting Clubs)

Welcome back for more help preparing to ace your consulting interviews!

We mentioned on the Case Interview Prep page that practice is the key to passing your consulting interviews. To practice, you’ll need some examples of case interview questions an answers to work with.

We’ve got links to loads of them below.

In addition, we have:

  • Tips on how to use case interview examples to prepare for your consulting interviews,
  • A video case interview example with My Consulting Offer founder Davis Nguyen and Dan, an MCO coach and ex-BCG interviewer, and
  • Insight into the difference between average and exceptional answers to case interview questions.

Get ready to dive deep into structuring your analysis of business problems, identifying the key issues, and recommending solutions!

How to Use Case Interview Examples to Ace Your Case

1. start your case interview preparation early..

You’ll need to practice dozens of case interview examples to get good enough to receive an offer from one of the top consulting firms. This is not something you can cram the night before an interview.

Start as soon as possible.

2. Don’t Read Straight through Sample Case Interview Examples or Passively Watch Videos.

Some people think that the best way to improve their chances of passing a case interview is by reading as many cases interview examples as they can.

This is like reading about how to play tennis but never picking up a racket. To get better at tennis, for example, you need to actually pick up a ball and be active. The same applies to your interview preparation.

Stop and think at each step in the case interview question. Come up with your own answer and say it out loud. Practice driving each part of the case interview example yourself.

  • How would you structure your analysis of the problem?
  • What questions would you ask the interviewer?
  • How would you set up the case math problem?
  • What recommendation would you make to the client?

After you’ve developed your answer, compare it to the suggested answer for the case.

What did you get right?

How did your answer and the case interview example answer differ?

Are there things you miss consistently across multiple case interview examples?

The answers to these  case interview examples can look simple when you just read through them, but it’s not easy to come up with all the key aspects of the solution on your own.

Nail the case & fit interview with strategies from former MBB Interviewers that have helped 89.6% of our clients pass the case interview.

3. Find Partners to Practice Case Interviews with.

Teamwork is an important part of consulting work, so get ready for it now. Find a case interview practice partner, preferably someone else who’s applying to jobs in the management consulting industry because they’ll know more about what recruiters are looking for.

Practicing cases with a partner provides the opportunity to get feedback from someone else on what you’re doing well and what you need to improve. Additionally, you’ll learn a lot by watching how your partner solves sample case studies.

Look for aspects of their approach that are effective as well as what they could do better. Working with a partner will make your consulting interview practice feel more real.

Similar to how you need a tennis partner to feel what is like to play tennis, you need a case partner to experience what a case interview is like.

4. Master the 4 Parts of the Case Interview.

In our article on Case Interview Prep , we discussed the 4 parts of the case interview: the opening, structure, analysis, and conclusion. As you practice with consulting case interview examples, practice each of these 4 parts to ensure you’re strong at them all.

5. Avoid Case Burnout.

A case zombie is someone who’s grown tired of casing from doing too much of it. Their answers feel rehearsed, not conversational. 

They may seem bored, not engaged in solving the problem. They’ll be less creative in their solutions. They certainly won’t pass the airport test!

Avoid becoming a case zombie by practicing smarter, not harder.

Video: Case Interview Examples – Questions & Answers

In the following case interview example, Davis Nguyen, founder of My Consulting Offer, talks with  Dan , an MCO coach and former BCG consultant and interviewer. Their discussion of BCG’s GenCo case is broken into 4 parts of the case interview.

In their case interview example, Davis and Dan demonstrate how to approach the business problem. They also provide examples of good answers vs. exceptional answers. Take note of what differentiates a good case interview answer from an exceptional answer so that you can not only get through your interview, but ace it.

Remember, don’t just watch the video. Stop the video and provide your own answer before listening to Dan’s  answer to the case question.

Step 1: Case Interview Example Opening – Ensure you understand the client and the problem you’ll be solving in the case.

Step 2: case interview example structure – break the problem down into smaller parts. make sure you cover all key case issues., step 3: case interview example analysis – ask questions, gathering information from graphs and charts provided by the interviewer, do case math, and provide insight into the client’s business problem based on what you learn., step 4: case interview example recommendation – develop a rational recommendation for the client based on all you’ve learned throughout the case interview., tips for acing your consulting case interviews – the difference between average & exceptional, case interview opening.

The opening is a great point to ask “dumb” questions because, at this point, you’re not expected to know much about the client and their business. 

Here your goal is to understand the client, their business, and what a successful project will look like.

Don’t shy away from asking for clarification on things that will help you better understand the business problem and solve it. For example, if you don’t know how life insurance works and the case is about life insurance, then ask.

After ensuring you understand the client and their problem, the next thing to ask about is key metrics of success. 

For example, the client may want to find new avenues for growth. Are they looking for a 5% increase in revenue or to double their business?

Finding out what success looks like in the client’s eyes will ensure you work to deliver a solution that meets their expectations, not one that’s underwhelming.

After you find out what success looks like, ask further probing questions to better understand the client, their business, and any constraints on solving the case.

Examples of Relevant Questions to ask Your Interviewer 

Examples of relevant questions about the client might include the geography they operate in or the sector of their industry they are strongest in. 

Examples of relevant questions about their business might include what products or services are most profitable or most important to their customers. 

Examples of relevant questions about the problem might include whether there are any costs that can’t be cut or what the maximum amount the client is able to invest in developing a new product. 

Asking these types of questions up front will give you a better context for solving the client’s problem and make it more likely that you will solve the case interview.

Case Interview Structure

You’ll need a framework to make sure your analysis covers all key aspects of the consulting case. 

You can use one of the many standard Case Interview Frameworks we’ve outlined , but top interviewees develop their own framework for analyzing the case interview question. 

Their frameworks may include pieces of one or more of the standard frameworks but are tailored to the particular business problem they’re discussing. 

Good frameworks are hypothesis-driven, that is to say they can be tested similar to the science experiment, so that the answer is either a “yes” or “no.” For example, examining your bank account to see, “if I have $400 for a ticket” is an example.

Second, good frameworks cover all topics relevant to the answer. For example, if the client is opening up a new hotel in a foreign country, checking out the existing competition should be part of the framework.

As you study more about interactive case interviews and practice them you’ll develop a sense for what factors are relevant or not relevant to the case at hand.

Finally, a good structure will be  MECE  or mutually exclusive and collectively exhaustive.

This means the framework will break down the market or population being analyzed into segments that include every part of the whole (collectively exhaustive), and each segment of the market or member of the population will show up in one and only one category without overlap (mutually exclusive). 

For example, if you divide the target market for a retail product into segments by age, these segments would be MECE:

  •  10-19,
  • 40-49, etc.

The categories 15-25, 20-30, 27-35 would not be MECE because people could be counted twice. 

Case Interview Analysis

In the analysis phase of your case interview example, you’ll ask questions to get the information you need to solve the client’s business problem. Your questions will likely lead you to one of the 4 types of analysis that are common in consulting interviews: market sizing, brainstorming, quantitative reasoning (case math), or reading exhibits. 

No matter which of these types of analysis comes up, there’s a 4-step method that ensures you can crack the case. 

This 4-step method is:

  • Ask for data,
  •  Interpret the data,
  •  Provide insight, and 
  • Outline next steps. 

The data you ask for will depend on the case interview question you’re solving. For example, if the question is about profitability, you’ll need to know about the client’s finances: dig into revenues and costs. 

For example, if you find that the client’s revenues are flat while their costs have been rising, you’ll know that the problem is in the cost structure and that you’ll need to examine costs more closely.

Next, provide insight. As you examine costs further, you’ll find out why they’ve grown faster than revenues. 

This insight will naturally lead to the next steps. What does the client need to do to get costs under control and fix their profitability problem? 

You may need to go through this 4-step method a couple of times, focusing on different aspects of the client’s business problem. 

Once you’ve examined and developed insight into all key aspects of the problem, your next step will be to conclude the interview with a recommendation for the client.

Case Interview Conclusion

At this point, you’ve hopefully cracked the case and are ready to present your recommendations to the client (your interviewer). 

The best way to do this is to use the 5R approach:

  • Recap – restate the business problem you’ve analyzed. In consulting this is done because a CEO might have hired 5 McKinsey teams and can’t remember which one you are on. 
  • Recommendations – Provide the solution your analysis led to. We lead with the recommendation because it is the most important piece of information. Stating it first and clearly puts everyone on the same page.
  • Reasons – Summarize the key facts and insights that lead you to your recommendations. 
  • Risks – Outline any risks the client should be aware of as they implement your recommendations. No recommendation has a 100% probability of success. Clients need to be aware of business risks in the same way patients need to understand the side effects of drugs.
  • Retaining the client – Provide next steps for how you can help the client ensure success. As consultants, we are paid for helping our clients. If there is a natural extension of the work as the client implements the team’s recommendations, we should tell them how we can provide further assistance (and ultimately make money for your firm). 

While most candidates will address their recommendations and possibly the reasons for their recommendations, few will hit all these points. 

In particular, outlining risks and further ways you can help the client will differentiate you from other candidates and help you to advance  to the second round of interviews or get the offer.

Free Online Case Interview Examples from 7 Top Consulting Firms

Now that you’re familiar with how you should use case interview examples and what differentiates an average answer from an exceptional one, you need sample questions to practice with.

Below, we provide links to dozens to help you hone your business problem-solving skills.

1. McKinsey Case Interview Examples

Disconsa – Help a not-for-profit develop better financial-service offerings for remote Mexican communities.

Electro-Light – Help a beverage manufacturer prepare for a new product launch.

GlobalPharm – Help a pharmaceutical industry client manage with its merger and acquisitions strategy.

Transforming a National Education System – Help a country’s education ministry develop a new strategy for educating the country’s children. 

2. BCG Case Interview Examples

Airline – Help a low-cost air carrier to remain profitable despite a recent fuel price hike.

Drug – Help a drug manufacturer to set a suitable price for their new drug.

Driving Revenue Growth – Help a medical devices and services company to increase revenues following an acquisition. (The same one that is highlighted above in our example)

Crafting a Distribution Strategy – Help a cereal manufacturer evaluate their distribution strategy.

3. Bain Case Interview Examples

3D television – Help a television manufacturer decide whether to develop a 3D product.

4. Deloitte Case Interview Examples

Footloose  – Help a footwear company improve their market share in the boots category.

Higher Education Merger: Technology Institute of the West – Help a higher education institution expand into online learning.

Strategy: Extreme Athletes World Games – Help a new sports organization to plan its budget and strategic business plan.

Digital Engineering: Green Apron – Help a grocery store chain design their new e-commerce platform.

5. AT Kearney Case Interview Examples

Promotion Planning – Help a national grocery and drug store chain improve its product promotion strategy.

6. PWC Case Interview Examples

Healthcare AI Innovator – Help a health care information provider improve its communication with pharmaceutical clients to improve outcomes.

Love at First Byte – Help a data management client comply with new regulations.

Prioritizing Ethics and Integrity – Help a software company leverage data analytics to comply with regulations. 

Telecom Giant Doubles its Size With an Acquisition – Help a telecommunications company integrate a newly acquired business.

7. Accenture Case Interview Examples

The “Great Unknown” – Help a leading manufacture of prefabricated kitchen furnishings turn around its recent loss of market share.

The “Parade of Facts” – Help a leading food company develop a fresh prepared meal business.

The “Back of the Envelope” – Estimate the total number of dry cleaners in Philadelphia.

8. Capital One Case Interview Examples

Ice Cream Corporation – Help the president of Ice Cream Corporation grow profits.

9. Oliver Wyman Case Interview Examples

Wumbleworld – Help a China-based theme park operator identify the reasons for declining profits and develop options for reversing the trend.

Aqualine – Help a manufacturer of small power boats determine why its sales growth has slowed and identify opportunities to boost sales.

10. LEK Case Interview Examples

Theater chain – Help a large theater chain identify revenue growth opportunities.

Free Online Case Interview Examples from Consulting Clubs

Need more case interview examples? Here are links to MBA case books compiled by INSEAD, Harvard, Wharton, Darden, and several other business schools.

Recent Consulting Case Interview Examples

  • 2019 Berkeley Haas School of Business Consulting Club Interview Preparation Guide and Case Book
  • 2017-2018 Berkeley Haas School of Business Consulting Club Case Interview Examples
  • 2017-2018 McCombs University of Texas at Austin Consulting Case Interview Examples
  • Columbia Business School Management Consulting Association Case Book 2017
  • Duke Fuqua School of Business MBA Consulting Case Interview Examples 2016-2017
  • NYU Stern MBA MCA Case Book: 2017
  • UCLA Anderson School of Management Consulting Association Case Interview Examples 2015-2015
  • Darden Consulting Club Case Book: 2014-2015
  • Yale Life Sciences Consulting Case Book 2014
  • ESADE MBA Consulting Club Case Interview Examples 2014
  • Darden Consulting Case Book: 2012-2013 Edition
  • Kellogg Consulting Club Case Book and Interview Guide: 2012 Edition

Even More Consulting Case Interview Examples

  • The Cornell Consulting Club Interview Prep Website
  • Harvard Business School Management Consulting Club Case Interview Examples
  • The MIT Sloan School of Management Consulting Club Case Book and Interview Guide – October 2001
  • The Berkeley MBA Haas Consulting Club 2006 Case Interview Examples
  • London Business School – The 2006 Consulting Club Case Book
  • Columbia Business School Management Consulting Association Case Book – 2006
  • Torch the Case – The NYU Stern Consulting Case Book – 2007 edition 
  • Michigan – the Ross School of Business Consulting Club 2010 Case Interview Examples
  • Wharton Case Book by the Wharton Consulting Club – December 2010
  • The Duke MBA Consulting Club Case Interview Examples – 2010-2011
  • Case Interview Book by the ESADE MBA Consulting Club 2011  
  • INSEAD Consulting Club Handbook – 2011

If you still have questions on case interview examples, leave them in the comments below. We’ll ask our My Consulting Offer coaches and get back to you with answers.

We have tons of other articles to help you get an offer from one of the top consulting firms. Check out our pages on:

  • Case Interview Math ,
  • Case Interview Types,  and
  • Market Sizing Questions .

Help with Case Study Interview Preparation

Thanks for turning to My Consulting Offer for advice on case study interview prep. My Consulting Offer has helped almost 89.6% of the people we’ve worked with get a job with top management consulting like Bain, BCG and McKinsey .  For example, here is how Conor was able to get his BCG offer after previously failing.

If you want a step-by-step solution to land more offers from consulting firms, then  grab the free video training series below.  It’s been created by former Bain, BCG, and McKinsey Consultants, Managers and Recruiters.

It contains the EXACT solution used by over 700 of our clients to land offers.

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280 Free Case Interview Examples

Do you want to get access to over 280 free case interview examples (with answers)?

If you have interviews planned at McKinsey ,  The Boston Consulting Group  or any other consulting firms, you are probably looking for case interview examples . 

So, to help you prepare, I have compiled a list of 280 free case interview examples:

Moreover, you’ll get  my take on which case studies you are likely to have in interviews .

In short, whether you are just starting out or have already made good progress in preparing for your case interviews , the resources listed hereafter will be very helpful.

Let’s get started!

Table of Contents

Mckinsey: tips and case interview examples.

McKinsey & Company website is definitely one of my favorites.

Because this gives so much insightful information about the role of a consultant, and how the hiring process looks like. 

Therefore, I highly recommend spending time on their website, even if you are not targeting McKinsey in particular.

BCG: Tips And Case Interview Examples

The Boston Consulting Group website  states something very important: the goal of the hiring process is to get to know you better, which means, in the context of Consulting interviews, understanding how you solve problems .

Remember this: in case interviews,  to show how you think is MUCH MORE IMPORTANT than to find an answer the case .

As a result, you will have case study questions to showcase your problem-solving skills. Likewise, fit interviews have the same purpose: to show what problems you faced and how you resolved them.

Bain: Tips And Case Interview Examples

Bain & Company website highlights something else that is very important: successful applicants manage to turn a case interview into a conversation between two consultants . 

In other words, you don’t want to show up as a candidate, but as a consultant ! 

To do this, you need to master the main problem-solving techniques that consulting firms want to see.

Deloitte: Tips And Case Interview Examples

Like for the BCG’s section above, Deloitte website clearly states that in case interviews , it is much more important to show how you think and interact with your interviewer than to find the right answer to the case.

Get 4 Complete Case Interview Courses For Free

consulting case interview sample

You need 4 skills to be successful in all case interviews: Case Structuring, Case Leadership, Case Analytics, and Communication. Join this free training and learn how to ace ANY case questions.

Oliver Wyman: Tips And Case Interview Examples

Like Deloitte website, Oliver Wyman website points out that, above all,  you must demonstrate your ability to think in a structured, analytical, and creative way. In other words, there are no right or wrong answers, but only showing how you solve problems matters.

AT Kearney: Tips And Case Interview Examples

Now it’s time to tell you something you could have heard a hundred times.

Yet too many candidates do it.

Do NOT force your solution to adapt to a standard framework . As a result, this will only take you to a place you don’t want to go: the pool of rejected candidates .

To learn more about this, check the “What Not To Do” section on the AT Kearney website .

Strategy&: Interview Prep Tips

Strategy& doesn’t provide case study examples on their website, but does share insights on how career progression looks like or their values, which I recommend reading when you prepare for your fit interviews.

Roland Berger: Tips And Case Interview Examples

I really like the examples of case studies presented on the Roland Berger website .

Because the two examples of case studies are very detailed and illustrate the kind of solutions that your interviewers expect during case discussions.

Alix Partners: Interview Prep Tips

Like Strategy&, Alix Partners doesn’t provide case study examples on its website.

However they do give an overview of what they are looking for: they want entreprenarial, self-starter and analytical candidates, which are skills that are highly appreciated by all consulting firms .

253 Case Studies From Business School Case Books

Most of these 253 case study examples are based on case interviews used by consulting firms in real job interviews .

As a result, you can have a good idea of the case study questions you can have when interviewing at these firms .

The Full List Of 253 Free Case Study Examples

Do you want to practice a specific type of case studies? Now you can…

I have sorted this list of 253 case studies by type:  profitability, market expansion, industry analysis, pricing, investment or acquisition,  and guesstimates (also known as market sizing question).

Full list of case study examples sorted by type

Bonus #1: Know The Types Of Cases You Are Likely To have During Your Interviews

As a result, assuming you’ll have 6 interviews (and therefore 6 case interviews) during the recruitment process:

Bonus #2: The 10x Cases I Recommend You Doing Now

Over 250 examples of case interviews is a great list and you may not know where to start.

So I’ve put a list of my 10x favorite case studies.

The 5x case studies I recommend doing if you are a BEGINNER

1. stern case book: drinks gone flat (starting at page 24).

This is a good introduction to a very common type of case (profitability, or more specifically declining sales here). I liked the solution presented for this case, in particular how it started first by isolating the problem of declining sales (what range of products? Volumes or prices or both?).

2. Stern case book: Sport bar (starting at page 46)

This is an investment case (should you invest in a new bar). Even if the solution presented in this case book is not MECE , it covers the most common quantitative questions you might have in such a case. I recommend doing this case.

3. Stern case book: MJ Wineries (starting at page 85)

This is a profitability case. I liked the solution presented in this case because it illustrates how specific good candidates should be. The case is talking about wine, so a good candidate should mention the quality of lands and grapes as important factors.

4. AGSM case book: Piano tuners (starting at page 57)

This is a typical market sizing question. How to answer this type of questions is a must-know before going to your interviews.

5. Darden case book: National Logistics (starting at page 49)

Again, this is a very common type of case (how to reduce costs). I liked the broad range of questions asked in this case, covering key skills assessed by consulting firms during case interviews: brainstorming skill (or creativity), quantitative skill and business sense.

The 5x case studies I recommend if you are more ADVANCED in your preparation

1. stern: the pricing games (starting at page 55).

This case study asks you to help your client assess different business models. I liked this case because the range of issues to tackle is quite broad.

2. Wharton 2017: Engineer attrition at SLS Oil & Gas Services (starting at page 55)

I liked this case study because the case prompt is uncommon: your client has been facing a very high attrition rate among its population of Engineers. As a result, it’s very unlikely that your solution fits a well-known framework, and you’ll have to demonstrate your problem-solving skills by developing a specific solution.

3. Wharton 2017: Pharma Company Goes International, Outsources Benefits, Integrates New Technology (starting at page 95)

This case is about a client considering outsourcing a part of their activity. Even though I don’t know if this type of case study is very common, I had many case studies like this when I passed my interviews a few years ago. And I always found them difficult!

4. Insead: Gas retail case (starting at page 73)

The question asked in the problem statement is very broad, which makes this case difficult. So, only good candidates will be able to have a structured case discussion here.

5. Darden: Fire Proof (starting at page 84)

This is a market entry case. Try to solve it by developing a structure as MECE as possible.'s Free Resources

Get access to my library of free resources : you’ll have access to videos, e-books, and other resources to help you  prepare for your case interviews  and write an outstanding CV and cover letter.

Besides, you can learn my step-by-step guide to answer market sizing questions . You’ll get my formula to solve all market sizing questions.

Moreover, if you are a beginner, you can read my article on how to solve business cases (+ a 4-week prep plan to get case interview ready).

Finally, you can read the articles in the blog section of my website.

That’s quite a list.

Now, I’d like to hear from you.

Which key insights were new to you?

Or maybe I have missed something.

Either way, let me know by leaving a comment below.


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You need 4 skills to be successful in all case interviews: Case Structuring, Case Leadership, Case Analytics, and Communication. Enroll in our 4 free courses and discover the proven systems +300 candidates used to learn these 4 skills and land offers in consulting.


Case Interview Preparation

Perform at your best during your case interview., bcgers share their case study interview tips., follow these dos and don ’ ts to ace your case prep:, use these examples to help structure your case interview., setting a climate strategy for a client., driving revenue growth at a healthcare company., your client is genco, a large, international, diversified company with a healthcare division that produces a wide variety of medical instruments and related services., ​​​​​​crafting a distribution strategy., your client is the sugar cereal division of foods inc., a u.s.-based distributor and manufacturer of packaged foods..

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47 case interview examples (from McKinsey, BCG, Bain, etc.)

One of the best ways to prepare for   case interviews  at firms like McKinsey, BCG, or Bain, is by studying case interview examples. 

There are a lot of free sample cases out there, but it's really hard to know where to start. So in this article, we have listed all the best free case examples available, in one place.

The below list of resources includes interactive case interview samples provided by consulting firms, video case interview demonstrations, case books, and materials developed by the team here at IGotAnOffer. Let's continue to the list.

Click here to practise 1-on-1 with MBB ex-interviewers

1. mckinsey case interview examples.

2. BCG case interview examples

3. Bain case interview examples

4. Deloitte case interview examples

5. Accenture case interview examples

6. OC&C case interview examples

7. Oliver Wyman case interview examples

8. A.T. Kearney case interview examples

9. Strategy& / PWC case interview examples

10. L.E.K. Consulting case interview examples

11. Roland Berger case interview examples

12. Capital One case interview examples

13. Consulting clubs case interview examples

Practice with experts

Using case interview examples is a key part of your interview preparation, but it isn’t enough.

At some point you’ll want to practise with friends or family who can give some useful feedback. However, if you really want the best possible preparation for your case interview, you'll also want to work with ex-consultants who have experience running interviews at McKinsey, Bain, BCG, etc.

If you know anyone who fits that description, fantastic! But for most of us, it's tough to find the right connections to make this happen. And it might also be difficult to practice multiple hours with that person unless you know them really well.

Here's the good news. We've already made the connections for you. We’ve created a coaching service where you can do mock case interviews 1-on-1 with ex-interviewers from MBB firms . Start scheduling sessions today!


Any additional resources?

Have we missed any additional case interview resources available for free? Please post them in the comments section below so we can add them to our list.

The IGotAnOffer team

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