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

Case interview examples - 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.

  • McKinsey examples
  • BCG examples
  • Bain examples
  • Deloitte examples
  • Other firms' examples
  • Case books from consulting clubs
  • Case interview preparation

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

1. mckinsey case interview examples.

  • Beautify case interview (McKinsey website)
  • Diconsa case interview (McKinsey website)
  • Electro-light case interview (McKinsey website)
  • GlobaPharm case interview (McKinsey website)
  • National Education case interview (McKinsey website)
  • Talbot Trucks case interview (McKinsey website)
  • Shops Corporation case interview (McKinsey website)
  • Conservation Forever case interview (McKinsey website)
  • McKinsey case interview guide (by IGotAnOffer)
  • McKinsey live case interview extract (by IGotAnOffer) - See below

2. BCG case interview examples

  • Foods Inc and GenCo case samples  (BCG website)
  • Chateau Boomerang written case interview  (BCG website)
  • BCG case interview guide (by IGotAnOffer)
  • Written cases guide (by IGotAnOffer)
  • BCG live case interview with notes (by IGotAnOffer)
  • BCG mock case interview with ex-BCG associate director - Public sector case (by IGotAnOffer)
  • BCG mock case interview: Revenue problem case (by IGotAnOffer) - See below

3. Bain case interview examples

  • CoffeeCo practice case (Bain website)
  • FashionCo practice case (Bain website)
  • Associate Consultant mock interview video (Bain website)
  • Consultant mock interview video (Bain website)
  • Written case interview tips (Bain website)
  • Bain case interview guide   (by IGotAnOffer)
  • Digital transformation case with ex-Bain consultant
  • Bain case mock interview with ex-Bain manager (below)

4. Deloitte case interview examples

  • Engagement Strategy practice case (Deloitte website)
  • Recreation Unlimited practice case (Deloitte website)
  • Strategic Vision practice case (Deloitte website)
  • Retail Strategy practice case  (Deloitte website)
  • Finance Strategy practice case  (Deloitte website)
  • Talent Management practice case (Deloitte website)
  • Enterprise Resource Management practice case (Deloitte website)
  • Footloose written case  (by Deloitte)
  • Deloitte case interview guide (by IGotAnOffer)

5. Accenture case interview examples

  • Case interview workbook (by Accenture)
  • Accenture case interview guide (by IGotAnOffer)

6. OC&C case interview examples

  • Leisure Club case example (by OC&C)
  • Imported Spirits case example (by OC&C)

7. Oliver Wyman case interview examples

  • Wumbleworld case sample (Oliver Wyman website)
  • Aqualine case sample (Oliver Wyman website)
  • Oliver Wyman case interview guide (by IGotAnOffer)

8. A.T. Kearney case interview examples

  • Promotion planning case question (A.T. Kearney website)
  • Consulting case book and examples (by A.T. Kearney)
  • AT Kearney case interview guide (by IGotAnOffer)

9. Strategy& / PWC case interview examples

  • Presentation overview with sample questions (by Strategy& / PWC)
  • Strategy& / PWC case interview guide (by IGotAnOffer)

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

  • Case interview example video walkthrough   (L.E.K. website)
  • Market sizing case example video walkthrough  (L.E.K. website)

11. Roland Berger case interview examples

  • Transit oriented development case webinar part 1  (Roland Berger website)
  • Transit oriented development case webinar part 2   (Roland Berger website)
  • 3D printed hip implants case webinar part 1   (Roland Berger website)
  • 3D printed hip implants case webinar part 2   (Roland Berger website)
  • Roland Berger case interview guide   (by IGotAnOffer)

12. Capital One case interview examples

  • Case interview example video walkthrough  (Capital One website)
  • Capital One case interview guide (by IGotAnOffer)

12. EY Parthenon case interview examples

  • Candidate-led case example with feedback (by IGotAnOffer)

14. Consulting clubs case interview examples

  • Berkeley case book (2006)
  • Columbia case book (2006)
  • Darden case book (2012)
  • Darden case book (2018)
  • Duke case book (2010)
  • Duke case book (2014)
  • ESADE case book (2011)
  • Goizueta case book (2006)
  • Illinois case book (2015)
  • LBS case book (2006)
  • MIT case book (2001)
  • Notre Dame case book (2017)
  • Ross case book (2010)
  • Wharton case book (2010)

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!

Related articles:

Accenture case interview

Hacking The Case Interview

Hacking the Case Interview

MBA consulting casebooks

Where can I find MBA Consulting Casebooks?

Below, you will find links to download MBA consulting casebooks from 23 different business schools. These casebooks will provide you with over 700 practice cases that you can use to hone your case interview skills. These cases are a great supplement to the practice cases that consulting firms provide .

The year indicates when the consulting casebook was published. Some consulting clubs publish a new casebook each year while others may use the same casebook for multiple years. Therefore, even the older casebooks can still contain valuable practice cases.

If you’re looking for a step-by-step shortcut to learn case interviews quickly,  enroll in our case interview course . These insider strategies from a former Bain interviewer helped 30,000+ land consulting offers while saving hundreds of hours of prep time.

  • Australian Graduate School of Management (2002)
  • Booth (2005)
  • Columbia (2007)
  • Darden (2019)
  • ESADE (2011)
  • Fuqua (2018)
  • Goizueta (2006)
  • Haas (2019)
  • Harvard Business School (2012)
  • Illinois (2015)
  • INSEAD (2011)
  • Johnson (2003)
  • Kellogg (2012)
  • London Business School (2013)
  • McCombs (2018)
  • Notre Dame (2017)
  • Queens (2019)
  • Ross (2010)
  • Sloan (2015)
  • Stern (2018)
  • Tuck (2009)
  • Wharton (2017)
  • Yale (2013)

What are Consulting Casebooks?

Consulting casebooks are documents that MBA consulting clubs put together to help their members prepare for consulting case interviews. Consulting casebooks provide some case interview strategies and tips, but they mostly contain case interview practice cases.

While consulting casebooks contain tons of practice cases, there is quite a bit of variety in the sources and formats of these cases.

Some practice cases are taken from actual consulting interviews given by consulting firms. These are the best types of cases to practice with because they closely simulate the length and difficulty of an actual case interview. Other practice cases may be written by the consulting club’s officers. These cases are less realistic, but can still offer great practice.

The formats of the practice cases in consulting casebooks also vary significantly.

Some practice cases are written in a question and answer format. This type of format makes it easy to practice the case by yourself, without a case partner. Other practices cases are written in a dialogue format. These cases are better for practicing with a case interview partner.

How do I use Casebooks to Practice Case Interviews?

How you should use consulting casebooks depends on whether you are practicing cases by yourself or practicing cases with a case partner.

Practicing Cases by Yourself

If you are trying to practice cases by yourself, you will need to find cases that are written in a question and answer format. Only in this format can you read the question, answer it, and then move onto the next question without getting any case spoilers.

To practice cases by yourself, read the case background. Then, summarize the case information out loud, verify the objective to yourself, and then ask clarifying questions out loud.

You likely won’t be able to answer any questions that you have by yourself, but talking to yourself out loud is good practice because it simulates what you would do in a real case interview.

Afterwards, take a few minutes to write out your case interview framework. Treat this like a real case interview, so don’t give yourself unlimited time to think about how you would structure your approach. When you have your framework written out, talk through it like you are explaining it to an interviewer.

Next, move onto the first case question. For each case question, talk through your thinking out loud as if you were in a real interview. If there is math involved, make sure you talk through your calculations out loud.

Once you have finished answering each case question, provide your final recommendation out loud. Make sure to suggest potential next steps.

Now that you have finished the case, you can review your answers and compare them to the sample answers. Try to identify areas of improvement or things that you could have done better.

For a comprehensive guide on how to practice case interviews by yourself, without a case partner, read this article .

Practicing Cases with a Case Partner

If you are practicing with a case partner, decide who is going to be giving the case and who is going to be receiving the case.

If you are giving the case, read the entire case information carefully. It may be helpful to read through everything twice so that you are familiar with all of the information and can answer any question that your partner asks you to clarify.

As the person giving the case, you need to be the case expert.

You should become familiar with the overall direction of the case. In other words, you should know what the major questions of the case are and what the major areas of investigation are. This will help you run the mock case interview more smoothly.  

Depending on whether you want the case interview to be interviewer-led or candidate-led, you will need to decide how much you want to steer the direction of the case.

If your partner gets stuck and is taking a long time, you may need to step in and provide suggestions or hints. If your partner is proceeding down a wrong direction, you will need to direct them towards the right direction.

Caveats to Using MBA Consulting Casebooks

In general, MBA consulting casebooks are great resources because they are free and provide tons of practice cases to hone your case interview skills. However, there are several caveats that you should be aware of.

1. Similarity to Real Case Interviews

Some cases in MBA consulting casebooks are not representative of actual case interviews because they are written by consulting club officers instead of interviewers from consulting firms.

For example, some cases may be too short or too long in length. Some cases could also be too technical or may require you to have specialized knowledge. If you come across a case that is way too complicated or way too simple, keep in mind that the case may not be representative of an actual case interview.

2. Quality of Sample Answers

While consulting casebooks provide sample solutions, these answers are often not the best or highest quality answers. If you use the answers in casebooks as your benchmark for what a great answer looks like, you may not be learning the best way to answer case interview questions.

3. Ease of Use

Consulting casebooks are all written in different formats and by different people. Therefore, it can be challenging to find cases that you can consistently use to practice cases by yourself or with a partner.

Case information may be written in an unorganized way. The main questions of the case may be hidden in the case background information or in the answers. You’ll have to learn the best way to read and digest each case in each casebook.

Recommended Consulting Interview Resources

Here are the resources we recommend to land your dream consulting job:

For help landing consulting interviews

  • Resume Review & Editing : Transform your resume into one that will get you multiple consulting interviews

For help passing case interviews

  • Comprehensive Case Interview Course (our #1 recommendation): The only resource you need. Whether you have no business background, rusty math skills, or are short on time, this step-by-step course will transform you into a top 1% caser that lands multiple consulting offers.
  • Case Interview Coaching : Personalized, one-on-one coaching with a former Bain interviewer.
  • Hacking the Case Interview Book   (available on Amazon): Perfect for beginners that are short on time. Transform yourself from a stressed-out case interview newbie to a confident intermediate in under a week. Some readers finish this book in a day and can already tackle tough cases.
  • The Ultimate Case Interview Workbook (available on Amazon): Perfect for intermediates struggling with frameworks, case math, or generating business insights. No need to find a case partner – these drills, practice problems, and full-length cases can all be done by yourself.

For help passing consulting behavioral & fit interviews

  • Behavioral & Fit Interview Course : Be prepared for 98% of behavioral and fit questions in just a few hours. We'll teach you exactly how to draft answers that will impress your interviewer.

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