Company case by Roland Berger
Style:
Topics:
LumCO, a company producing injection-molded components for lighting applications, has operated successfully in its native European market. The company wants to open up one production facility each in China and the United States and establish their own distribution network in both countries to serve
... (Open whole case)
86.2k
Times solved
Advanced
Difficulty
Company case by Bain & Company
Style:
Topics:
LubricantsCo, a very successful Asian premium producer of lubricants in their native region, would like to further increase their revenue and profit. The product range ranges from lubricants in the automotive sector (e.g. motor and gear oil) to industrial applications (e.g. fats, heavy-duty oils).Ac
... (Open whole case)
200.2k
Times solved
Beginner
Difficulty
Expert case by Ian
Topics:
An entrepreneur has come to you looking to disrupt the taxi industry in NYC. They are interested in determining the number of taxis in Manhattan, in order to understand how large their fleet would need to be to compete. How would you go about determining how many taxis exist in Manhattan?If the cand
... (Open whole case)
4.3k
Times solved
Intermediate
Difficulty
Expert case by Ian
BCG Platinion/McK Digital/Monitor - Experienced Hire Tech Practice - Roma Solutions
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Style:
Let’s say we’re working with a large Tech company (i.e. FB, Apple, Microsoft etc.). They are interested in getting into the low-code iBPMS space. This is a space where pseudo-code is used to deploy large-scale process-based IT applications rapidly (in months, not years).In particular, they’re lookin
... (Open whole case)
4.1k
Times solved
Intermediate
Difficulty
Expert case by Cristian
Russell University - Fresh Attacker on the Online Education Market (McKinsey 1st round)
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Russell University, located in the United Kingdom, is one of the oldest and most prestigious universities in the world. They have been educating students for more than two centuries and provide a variety of undergraduate and graduate STEM-focused courses. In an effort to increase revenues and e
... (Open whole case)
700+
Times solved
Beginner
Difficulty
Expert case by Cristian
Our client, Hara Coffee Company, is a large coffee chain with over 200 locations in the United Kingdom. They import beans from numerous regions and batch-roast them in the UK, offering customers a vast selection of premium blends. In addition to serving delicious coffee, our client offers freshly ma
... (Open whole case)
500+
Times solved
Intermediate
Difficulty
Expert case by Rushabh
Style:
The Government of Spain has tasked the City of Barcelona to increase their revenue generated from the City.Thus, in order to generate more revenue, the Local Government of Barcelona has engaged our firm to examine the viability of passing a new law imposing a fine on jaywalking violations.How should
... (Open whole case)
700+
Times solved
Advanced
Difficulty
Expert case by Francesco
Style:
Topics:
Our client is the US-based biotech company Top Chemicals. They have just developed a fertilizer that is waiting to get approval for commercialization. They hired us to identify the best price for it.
... (Open whole case)
1.4k
Times solved
Intermediate
Difficulty
Expert case by Clara
Topics:
Currently, there is only one train company operating the Boston – New York route: AMTRAK. The option of traveling by train between the two metropolis is gaining traffic, particularly in winter times, during which it´s the best way to avoid weather-related delays. Furthermore, it´s the most environme
... (Open whole case)
6.5k
Times solved
Intermediate
Difficulty
Expert case by Clara
Style:
Topics:
In an annual reunion with your MBA colleagues, one of them shares with you an idea of a new venture they have been working on: affordable baby strollers. They have deep experience in puericulture and childcare, and know there is a stable business to tackle.Given your experience in consulting, they a
... (Open whole case)
4.7k
Times solved
Intermediate
Difficulty
Expert case by Francesco
Style:
Our client is a BlissOttica, an Eyewear Manufacturer that is looking to reach a 10% increase in profits. How would you help our client?
... (Open whole case)
11.7k
Times solved
Intermediate
Difficulty
Expert case by Gaurav
Style:
Topics:
Our client is an alloy wheels manufacturer based in China. The client is contemplating entering the US market. At this point of time, the client sells the wheels in the China market. In order to make the wheels for the US market, he will have to expand its production capacity. As a result, whether t
... (Open whole case)
4.5k
Times solved
Intermediate
Difficulty
Expert case by Gaurav
Topics:
Our client is Easywood, a furniture maker based in North Africa. Easywood serves the local market and sells mainly bedroom furniture. Last year, Easywood had a revenue of around $10m and a profitability of around 20%. Though Easywood is not concerned about the growth and profitability, they are worr
... (Open whole case)
7.6k
Times solved
Beginner
Difficulty
Expert case by Deniz
CoffeeWorks is one of the leading coffee retail chains in the UK. The client is planning to introduce reusable cups with an aim to decrease the consumption of single-use disposable cups. The main goal of the client is to enhance their brand image as a sustainable retailer without harming curren
... (Open whole case)
3.7k
Times solved
Advanced
Difficulty
Expert case by Xabi
The client is CarRentalCo, a global car rental company present on the European and North American markets. In Europe, it is present in most EU countries but has not yet entered the Baltic countries. CarRentalCo has asked us to determine whether or not they should enter the Baltic (Estonia, Latv
... (Open whole case)
9.6k
Times solved
Intermediate
Difficulty
Expert case by Francesco
Topics:
Our client is SmartBridge, a nonprofit educational institution offering face-to-face tutoring services. The client operates in the US.The mission of SmartBridge is to help as many students as possible to complete studies and prevent that they drop from the school system, in particular in disadv
... (Open whole case)
29.0k
Times solved
Advanced
Difficulty
Expert case by Raj
Style:
Your client is the CSO of LightFast, a Middle-Eastern telecoms and media player. They are a national incumbent player who expanded operations into South-East Asia and North Africa in late 2010s. Their operations in Indonesia include pay-TV and fibre-optic broadband. However, the broadband busin
... (Open whole case)
5.6k
Times solved
Advanced
Difficulty
Expert case by Clara
Your client is the CEO of a Europe-based mobile Telco operator, SuperMovil. Their business model is very unique: they are a “virtual Telco”. They differ from traditional mobile operators (e.g. Vodafone, T-Mobile, Telefónica/O2, etc.) in that they do not own optic fiber, antennas and satellites,
... (Open whole case)
11.5k
Times solved
Intermediate
Difficulty
Expert case by Axel
Style:
Topics:
We have been hired by the CEO of Comfort Chairs, a company that manufactures complex powered wheelchairs. Comfort Chairs has headquarters in Sweden with manufacturing in Sweden and sales all over Europe. The company enjoys a strong market position and is known for being a pioneer
... (Open whole case)
5.0k
Times solved
Advanced
Difficulty
Expert case by Daniel
Topics:
Our client is a European venture capital firm. They are potentially interested in investing into a new restaurant franchise player from Austria, called “VegDigi”. VegDigi has just 3 corporate restaurants in Vienna and no franchisees, yet, but their business model is considered innovative for a resta
... (Open whole case)
17.6k
Times solved
Intermediate
Difficulty
Frequently Asked Questions
What are cases?
Cases, also known as case studies, are business problems that a candidate is presented with during a case interview at a management consultancy. The challenge is to solve it under pressure and in a structured way.
Why are consulting cases so important for your preparation?
Consulting interviews are among the most competitive and difficult job interviews that exist. Interviewers use cases as an indicator to test whether you have what it takes to become a successful consultant. In order to pass, you need to ace the case interview part. And in order to ace the case interview part, you need to be well-prepared. Thus, practicing cases is one of the most important aspects of interview preparation in consulting. During different rounds of interviews you will have to solve cases again and again to prove your structured and analytical thinking as well as your communication skills.
How can I practice cases?
You can practice cases on your own and go through them to get a first feeling for the structure. Afterwards, you should go into a real interview environment and practice cases with other members on the platform. You will find more than 50 mock-interview requests on the Meeting Board every day, which you can easily accept. If there is nothing suitable on the Meeting Board, you can also use the Candidate Listing. Here you can find active members on the platform and send them a direct meeting request. If you want to take your case practice to the next level, we recommend you to schedule coaching sessions with our coaches who have many years of experience in helping candidates receive their dream job offer.
What is the difference between Candidate-led and Interviewer-led?
In an interviewer-led case interview, the interviewer leads through the conversation. This means that the interviewer asks specific questions and also controls the time you have to analyze and answer different questions and therefore the depth of your analysis. In contrast, the candidate-led style (which is more common) is about you taking the initiative as a candidate. The initial problem is given to you by your interviewer. Afterwards, you have the freedom to structure the case according to your ideas and to ask questions proactively in order to find a solution to the problem.
What are real cases?
Real cases in the PrepLounge Case Library are cases that were submitted by management consultancies and have been treated as such within the company. They were made available from the real interview process. In this way, you can gain deep insights into the requirements of the case interview with the respective top consultancies (e.g. Bain & Company, Roland Berger, Deloitte, Oliver Wyman). We have marked these cases with the corresponding company logo.
What are expert cases?
Expert cases were created by our PrepLounge coaches and either contain real problems that the experts have already dealt with in their lives as consultants or cases from actual consulting interviews they took part in. They offer you an optimal preparation through the different subjects, levels of difficulty and styles. And the best thing is: If you have questions about the cases, you can ask them directly to the authors.
What are video case solutions?
Video case solutions are cases in which we provide you with a solution that includes a YouTube video. With this we want to help you to understand case solutions even better.
What does the rating of the cases mean?
Every member has the possibility to rate a case and leave feedback on the case. This gives you the opportunity to call up a ranking and solve the cases that are particularly popular in the community. It also gives us the opportunity to continuously improve our cases in order to provide you with the best possible practice material.
Which are the most interesting cases on PrepLounge?
Which cases are most interesting for you depends on your personal preference and your level of knowledge. If you are just starting with the case interview preparation, beginner cases are probably the most interesting ones for you. You also have the possibility to filter by different categories, such as personal fit, market analysis or brain teaser and many more, in order to address exactly the topics that are most relevant for your application.