Practice Case Interviews - Browse Our Extensive Case Library
Invite other candidates for a meeting to crack the case interactively or solve it on your own. If you like to check your case approach just have a look at the given sample solution. (Read more)
A Vast Selection of Management Consulting Cases
Company case by Simon-Kucher & Partners
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Cruise company German Sea Tours (GST) is a successful operator of international cruises. GST currently offers several cruise trips, lasting between 5 and 24 days. Additional services can be booked on board (e.g. excursions at each destination, onboard leisure activities). Customers tend to book thei
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37.8k
Times solved
Intermediate
Difficulty
Company case by BearingPoint
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A car park and parking lot operator pursues the strategic goal of exploiting new sources of income via digital business models. As part of this initiative, a MVP (Minimal Viable Product) was developed for a parking app that enables users to search and pay for paid parking spaces.The managing directo
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31.2k
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Intermediate
Difficulty
Company case by Roland Berger
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Onlinestar, an online retailer of furniture and garden products (core business), has grown significantly in recent years as a result of an expansion of its product portfolio. The company mainly imports goods from Chinese manufacturers but also operates its own production of cat lavatories (special b
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76.1k
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Intermediate
Difficulty
Company case by Stern Stewart & Co.
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The sporting goods manufacturer TIGER SE which is broadly positioned in Germany wants to increase its sales.The company is fully integrated along its value chain which means that the sporting goods are manufactured in-house and then sold to end consumers through its own distribution c
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22.4k
Times solved
Intermediate
Difficulty
Company case by Bain & Company
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You have inherited the “Old Winery” from your grandfather, a winery that has been family-owned for five generations and can be dated back to the 16th century.Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in a conventional way, i.e. they
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98.6k
Times solved
Intermediate
Difficulty
Company case by EY-Parthenon
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A leading online real estate marketplace in Germany – your-new-home.com – is struggling with stagnating sales after many years of high growth rates. In a preliminary project with EY-Parthenon, the market environment has already been examined in detail – competitors, new entrants, customer needs, etc
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59.2k
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Intermediate
Difficulty
Company case by zeb
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The bank "His Earlship Charles", a domestic retail and private bank is in a difficult situation. Profits have been declining over the past years due to the ongoing low interest rates set by the central bank. Additionally, the bank is suffering from a decreasing number of customers. The board of dire
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66.5k
Times solved
Advanced
Difficulty
Company case by Oliver Wyman
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I’m thinking about setting up a wine cellar in my basement. The way I see it, shelf space would be divided into two sections: (1) a “drinking” section where I store bottles for my own consumption and (2) an “investment” section where I store bottles that I intend to sell at a profit after they
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88.7k
Times solved
Beginner
Difficulty
Company case by Oliver Wyman
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Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below the expected numbers. The management has engaged you to support them in understanding the reasons and advise
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109.9k
Times solved
Intermediate
Difficulty
Company case by Oliver Wyman
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TrainCo is a manufacturer of rolling stock, or trains, with production sites in three European countries. The company has seen declining profitability over the past years; however, they are currently in a very good position to bid for and win a big contract for regional trains for a Swiss national r
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62.8k
Times solved
Beginner
Difficulty
Company case by Roland Berger
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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
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84.0k
Times solved
Advanced
Difficulty
Company case by Consulting@Deloitte
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Duraflex is a German footwear company with annual men’s footwear sales of approximately €1 b.They have always relied on the boot market for the majority of their volume. In this market they compete with three other major competitors.In the fall of 2019, Badger – one of Duraflex’s competitiors – laun
... (Open whole case)
79.7k
Times solved
Intermediate
Difficulty
Company case by Bain & Company
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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
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193.9k
Times solved
Beginner
Difficulty
Expert case by Cristian
GlowMobile is a leading telecom operator with a strong presence in Southeast Asia. They sell regular products and services that any telecom operator would offer in their retail stores: cell phones, SIM cards, subscriptions, etc.Even though the number of digital customers in the region has grown expo
... (Open whole case)
500+
Times solved
Intermediate
Difficulty
Expert case by Rushabh
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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)
300+
Times solved
Advanced
Difficulty
Expert case by Francesco
Our client is Party Burger, a restaurant chain in the US serving premium burgers and salads for lunch. They rely on the quality of their products to attract customers, and they are usually fully booked. However, reviews have pointed out that the service offered could be improved. Our client is conce
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1.8k
Times solved
Intermediate
Difficulty
Expert case by Francesco
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Our client is an Italian multinational manufacturer of branded chocolate and confectionery products. One of their most popular products is Hazella, a hazelnut spread.Despite its worldwide popularity, Hazella is considered to be high in calories by some customers. For this reason, our client has deve
... (Open whole case)
1.4k
Times solved
Advanced
Difficulty
Expert case by Francesco
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Our client is an Indian sugar producer exporting solely to Indonesia. Indonesia imports 5m tons of raw sugar per year.To make raw sugar, our client processes sugarcane at a cost of $25 per ton and they have a capacity of 1.5m tons per year. The only competitor that has lower production costs is from
... (Open whole case)
1.1k
Times solved
Advanced
Difficulty
Expert case by Francesco
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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)
700+
Times solved
Intermediate
Difficulty
Expert case by Ian
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Our client is Hunger Warriors, a non-profit with ambitions to solve world hunger. While approximately one tenth of the human population goes to bed hungry, Hunger Warriors aims to bring this number to zero. One of their primary initiatives is to reduce food waste, which represents $1.5 Trillion in l
... (Open whole case)
700+
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.