Studying case interview examples is one of the first steps in preparing for the management consulting recruitment process.
If you don’t want to spend hours searching the web, this article presents a comprehensive and convenient list for you – with 35 example cases, 16 case books, along with a case video accompanied by detailed feedback on tips and techniques.
A clear understanding of “what is a case interview” is essential for effective use of these examples. I suggest reading our Case Interview 101 guide, if you haven’t done so.
1. McKinsey Case Interview Examples
McKinsey Practice Cases
What should I know about McKinsey Case Interviews?
At McKinsey, case interviews often follow the interviewer-led format, where the interviewer asks you multiple questions for you to answer with short pitches.
How do you nail these cases? Since the questions can be grouped into predictable types, an efficient approach is to master each question type. However, do that after you’ve mastered the case interview fundamentals!
For a detailed guide on interviewer-led cases, check out our article on McKinsey Case Interview.
2. BCG & Bain Case Interview Examples
BCG Practice Cases
- BCG – Driving Revenue Growth – MedCount
- BCG – Crafting a Distribution Strategy – Big M Mart
- BCG – Interactive Case Library – Airline and Drug Cases
- BCG – Written Case – Chateau Boomerang
Bain Practice Cases
- Bain – Coffee Shop Co.
- Bain – Fashion Co.
- Bain – Mock Interview – Associate Consultant
- Bain – Mock Interview – Consultant
What should I know about BCG & Bain Case Interviews?
Unlike McKinsey, BCG and Bain case interviews typically follow the candidate-led format – which is the opposite of interviewer-led, with the candidate driving the case progress by actively breaking down problems in their own way.
The key to acing candidate-led cases is to master the case interview fundamental concepts as well as the frameworks.
Some BCG and Bain offices also utilize written case interviews – you have to go through a pile of data slides, select the most relevant ones to answer a set of interviewer questions, then deliver those answers in a presentation.
For a detailed guide on candidate-led cases, check out our article on BCG & Bain Case Interview.
Deloitte Practice Cases
What should I know about Deloitte Case Interviews?
Case interviews at Deloitte also lean towards the candidate-led format like BCG and Bain.
The Deloitte consultant recruitment process also features group case interviews, which not only test analytical skills but also place a great deal on interpersonal handling.
4. Accenture Case Interview Examples
Accenture divides its cases into three types with very cool-sounding names.
Sorted in descending order of popularity, they are:
These are similar to candidate-led cases at Bain and BCG. albeit shorter – the key is to develop a suitable framework and ask the right questions to extract data from the interviewer.
These are similar to the market-sizing and guesstimate questions asked in interviewer-led cases – demonstrate your calculations in structured, clear-cut, logical steps and you’ll nail the case.
These cases have you sort through a deluge of data to draw solutions; however, this type of case is rare.
Here’s the link to the Accenture Case Interview Workbook, with more than a dozen practice cases.
5. Capital One Case Interview Examples
Capital One is the odd one on this list – it is a bank-holding company. Nonetheless, this being one of the biggest banks in America, it’s interesting to see how its cases differ from the consulting ones.
Having gone through Capital One’s guide to its cases, I can’t help but notice the less-MECE structure of the sample answers. Additionally, there seems to be a greater focus on the numbers.
Nonetheless, having a solid knowledge of the basics of case interviews will not hurt you – if anything, your presentation will be much more in-depth, comprehensive, and understandable!
See Capital One Business Analyst Case Interview for an example case and answers.
6. Other Firms Case Interview Examples
Besides the leading ones, we have some examples from other major consulting firms as well.
- Oliver Wyman – Wumbleworld
- Oliver Wyman – Aqualine
- LEK – Cinema
- LEK – Market Sizing
- Kearney – Promotional Planning
- OC&C – Imported Spirits
- OC&C – Leisure Clubs
8. Case Interview Example – Case Video
The limitation of most official case interview examples is that they are
either too short and vague, or in text format, or both.
To solve that problem for you, we’ve extracted a 30-minute-long, feedback-rich case sample from our Case Interview End-to-End Secrets Program.
This is a candidate-led, profitability case on an internet music broadcasting company called Pandora.
In 30 minutes, this candidate demonstrates the exact kind of shortcoming that most candidates suffer during real case interviews – they come in with sharp business senses, then hurt their own chances with inadequate techniques.
Here are seven notable areas where the candidate (and you) can improve:
Throughout the case, as especially in the opening, he should have shown more appreciation for the time the interviewer spent with him.
The candidate’s opening of the case feels unstructured. He could have improved it by not mixing the playback and clarification parts. You can learn to nail the case in a 3-minute start through this video on How to Open Any Case Perfectly.
A lot of the candidate’s thought process remains in his head; in a case interview, it’s better to be as explicit as possible – draw your issue tree out and point to it as you speak; state your hypothesis when you move into a branch; when you receive data, acknowledge it out loud.
The silence in his case performance is too long, including his timeout and various gaps in his speech; either ask for timeout (and keep it as short as possible) or think out loud to fill those gaps.
The candidate relies too much on the interviewer (e.g: asking for data when it can easily be calculated); you don’t want to appear lazy before your interviewer, so avoid this.
Making one mistake twice is a big no-no in consulting interviews; one key part of the consulting skill set is the ability to learn, and repeating your mistakes (especially if the interviewer has pointed it out) makes you look like someone who doesn’t learn.
Nonetheless, there are three good points you can learn from the candidate:
The candidate sums up what he’s covered and announces his upcoming approach at the start and at key points in the case – this is a very good habit that gives you a sense of direction and shows that you’re an organized person.
The candidate performs a “reality check” on whether his actions match the issue tree; in a case interview it’s easy to lose track of what you’re doing, so remember to do this every once in a while.
The candidate prompts the interviewer to give out more data than he asked for; if anything, this actually matches a habit of real consultants, and if you’re lucky, your interviewer may actually give out important pieces you haven’t thought of.
These are only part of the “ninja tips” taught In our Case Interview E2E Secrets Program – besides the math and business intuition for long-term development, a key feature is the instant-result tips and techniques for case interviews.
Once you’ve mastered them, you can nail any case they throw at you!
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