Practice With Over 200 Cases on Various Topics

Learn the case interview basics, practice with 200+ cases, and benefit from extensive test materials, and interactive self-study tools.
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Expert case by Francesco
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 ... 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 stude ... (Open whole case)
32.8k
Times solved
4.6
600+ Ratings
Advanced
Difficulty
Expert case by Clara
Your client is the CEO of Heathrow airport (London), the busiest airport in Europe in terms of commercial traffic.Due to COVID-19, the airport's operations and hence, revenue streams, have been severely affected.The CEO asks for your help with the preparation of the upcoming Steerco, focused on:“How ... Your client is the CEO of Heathrow airport (London), the busiest airport in Europe in terms of commercial traffic.Due to COVID-19, the airport's operations and hence, revenue streams, have b ... (Open whole case)
9.5k
Times solved
4.4
300+ Ratings
Intermediate
Difficulty
Expert case by Luca
Espresso Whatelse is an Italian company that produces coffee and espresso machines since 1908. It is the Italian market leader and has a strong presence overall in Europe. In 2019, Espresso Whatelse has increased its revenues but it has seen declining profit margin.Your client wants to understa ... Espresso Whatelse is an Italian company that produces coffee and espresso machines since 1908. It is the Italian market leader and has a strong presence overall in Europe. In 2019, Espr ... (Open whole case)
17.8k
Times solved
4.6
500+ Ratings
Advanced
Difficulty
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Expert case by Raj
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 ... 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 20 ... (Open whole case)
6.2k
Times solved
4.4
100+ Ratings
Advanced
Difficulty
Expert case by Thomas
Your friend is an aspiring artist and is asking for your consulting advise on a problem that he has been struggling with. Your friend (the artist) is trying to understand how many hours people listen to the number one music streaming platform (the one with the green logo) in total and on average per ... Your friend is an aspiring artist and is asking for your consulting advise on a problem that he has been struggling with. Your friend (the artist) is trying to understand how many hours peop ... (Open whole case)
8.6k
Times solved
4.4
100+ Ratings
Beginner
Difficulty
Expert case by Ben
Our client is RedBus, one of several operators of iconic double-decker public transport buses in London. Over the past three years RedBus have experienced declining profitability, as a result of reduced demand for buses due to growth in affordable taxi services, such as Uber.The client is looking to ... Our client is RedBus, one of several operators of iconic double-decker public transport buses in London. Over the past three years RedBus have experienced declining profitability, as a resul ... (Open whole case)
6.2k
Times solved
4.4
100+ Ratings
Intermediate
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, ... 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 operator ... (Open whole case)
12.8k
Times solved
4.6
400+ Ratings
Intermediate
Difficulty
Expert case by Axel
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  ... 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 Swede ... (Open whole case)
5.5k
Times solved
4.5
< 100 Ratings
Advanced
Difficulty
Expert case by Daniel
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 ... 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 corporat ... (Open whole case)
19.3k
Times solved
4.6
600+ Ratings
Intermediate
Difficulty
Expert case by Vai
Johnny Depp, now 56 years old, has started to feel that his acting career is about to get over. His net worth crossed over $650 million at the peak of his career but has since dwindled, amid lawsuits and lifestyle expenses. As such, he thinks that his current wealth might not be enough for ... Johnny Depp, now 56 years old, has started to feel that his acting career is about to get over. His net worth crossed over $650 million at the peak of his career but has since dwin ... (Open whole case)
2.5k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
Expert case by Francesco
Our client is a German-owned water provider company based in the southwest of the United States. As the biggest water provider in the region, they serve the majority of the southwest region.Profit growth has slowed down considerably in recent years, and the company is finding it difficult to co ... Our client is a German-owned water provider company based in the southwest of the United States. As the biggest water provider in the region, they serve the majority of the southwest re ... (Open whole case)
8.2k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
Expert case by Francesco
Your client is the Performance Chemicals division (revenues of $500 million) of a Specialty Chemicals Company with total revenues of $14 billion. The CEO wants the company to become the fastest-growing specialty chemicals company and has therefore asked all the divisions to present growth strat ... Your client is the Performance Chemicals division (revenues of $500 million) of a Specialty Chemicals Company with total revenues of $14 billion. The CEO wants the company to become the fast ... (Open whole case)
8.4k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
Expert case by Francesco
Our client is a supermarket chain that is considering whether they should enter the emerging online grocery delivery business where consumers order their groceries online and have them delivered to their homes. Currently, two competitors have entered the online market in the client's area in San Fra ... Our client is a supermarket chain that is considering whether they should enter the emerging online grocery delivery business where consumers order their groceries online and have them deliv ... (Open whole case)
9.1k
Times solved
5.0
< 100 Ratings
Intermediate
Difficulty
Expert case by Hagen
ConsumerPackagingCo is a small, US-based consumer products packaging company that develops, produces, and sells plastic bags for storing sandwiches. The client currently owns one production line.Since demand for their plastic bags exceeds production capacity, ConsumerPackagingCo wants to determine h ... ConsumerPackagingCo is a small, US-based consumer products packaging company that develops, produces, and sells plastic bags for storing sandwiches. The client currently owns one production ... (Open whole case)
10.6k
Times solved
3.0
< 100 Ratings
Intermediate
Difficulty
Expert case by Hagen
Sprinker is a mid-sized, US-based publishing agency that develops, produces, and sells educational materials. It has come to their attention that some private schools are considering changing their first-grade textbooks, for which they would need a publishing agency.Sprinker is interested in partici ... Sprinker is a mid-sized, US-based publishing agency that develops, produces, and sells educational materials. It has come to their attention that some private schools are considering changin ... (Open whole case)
22.0k
Times solved
4.5
3.9k Ratings
Beginner
Difficulty
The client, VacuLuxe Innovations, is a manufacturer for vacuum pumps, e.g. rotary vane pumps, cryogenic pumps located in Germany. The company has grown from a start-up to a major corporation over the last 50 years. However, after benchmarking the economics of their business, the client discovered th ... The client, VacuLuxe Innovations, is a manufacturer for vacuum pumps, e.g. rotary vane pumps, cryogenic pumps located in Germany. The company has grown from a start-up to a major corporation ... (Open whole case)
7.8k
Times solved
4.1
< 100 Ratings
Intermediate
Difficulty
Our client is a global company that specializes in manufacturing of different types of packaging. The company produces 2 types of packaging paper: Paper wrapping without foil inlays and paper wrapping with foil inlays (e.g., for packaging of fluids). The client buys materials such as paper, pai ... Our client is a global company that specializes in manufacturing of different types of packaging. The company produces 2 types of packaging paper: Paper wrapping without foil inlays and ... (Open whole case)
8.4k
Times solved
3.8
< 100 Ratings
Beginner
Difficulty
Fast Dish, a publicly traded Quick Service Restaurant (Franchise) company with over €20 billion in revenue and more than 20.000 restaurants globally, has recently faced major challenges with regards to supply chain management and sustainability.The client's top management has engaged the SCM and pro ... Fast Dish, a publicly traded Quick Service Restaurant (Franchise) company with over €20 billion in revenue and more than 20.000 restaurants globally, has recently faced major challenges with ... (Open whole case)
8.7k
Times solved
3.5
< 100 Ratings
Intermediate
Difficulty
Our client is a consumer packaged goods company looking for top-line growth opportunities. They are considering extending its pre-existing baby products brand (e.g., Huggies) into a new product category – baby clothing.They are looking for this business to generate +$300M revenue per year, begi ... Our client is a consumer packaged goods company looking for top-line growth opportunities. They are considering extending its pre-existing baby products brand (e.g., Huggies) into a new prod ... (Open whole case)
4.2k
Times solved
4.1
< 100 Ratings
Intermediate
Difficulty
Deep water is a European manufacturer of small yachts and premium boats for private customers. The company operates in Europe and the Middle East and is based in Northern European country, where its manufacturing site, as well as HQ, are located. Deep Water has a strong and recognizable brand as a m ... Deep water is a European manufacturer of small yachts and premium boats for private customers. The company operates in Europe and the Middle East and is based in Northern European country, w ... (Open whole case)
2.1k
Times solved
3.2
< 100 Ratings
Advanced
Difficulty
101 - 120 of 219 results

Any Open Questions Left? Check Out Our FAQ

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.

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.

A Vast Selection of Management Consulting Cases

Our selection of case studies mirror the wide variety in real case interviews. Thus, you can solve challenging problems around market sizing, market-entry, pricing, or operations strategy. Moreover, all provided cases are marked with a level of difficulty and the respective case style. This will allow you to filter for interviewer-led (as used by McKinsey) and candidate-led cases. In addition, some of our corporate partners granted some great original cases that have been used in real interviews. Check them out to get some authentic insights about the real application process of top firms like Bain, Roland Berger, and many more. These cases are clearly indicated by the firm's logo.

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