Practice With Cases on Various Topics

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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)
6.3k
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)
13.3k
Times solved
4.6
400+ 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 continu ... 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. ... (Open whole case)
8.9k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
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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)
8.8k
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)
10.4k
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)
11.0k
Times solved
4.4
< 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)
25.1k
Times solved
4.5
3.9k Ratings
Beginner
Difficulty
FashionForward is a mid-sized, private-label fashion retailer headquartered in Europe with €600 million in annual revenue. Its product portfolio includes fast-fashion collections for men and women, sold in 220 stores across six countries, and online.The company currently sources approximately 85% of ... FashionForward is a mid-sized, private-label fashion retailer headquartered in Europe with €600 million in annual revenue. Its product portfolio includes fast-fashion collections for men and ... (Open whole case)
5.0k
Times solved
4.5
< 100 Ratings
Intermediate
Difficulty
DHL aims to create a new E-Commerce business model that combines:A DHL-owned online marketplace.Participation limited to local retailers.Same-day parcel delivery services by DHL.The strategic goal is to strengthen the stationary retail sector as an important customer group. The DHL Consulting team i ... DHL aims to create a new E-Commerce business model that combines:A DHL-owned online marketplace.Participation limited to local retailers.Same-day parcel delivery services by DHL.The strategi ... (Open whole case)
6.0k
Times solved
3.9
< 100 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)
13.0k
Times solved
4.0
< 100 Ratings
Intermediate
Difficulty
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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)
12.7k
Times solved
3.4
< 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)
4.5k
Times solved
4.1
< 100 Ratings
Intermediate
Difficulty
The client is an Indonesian producer of paper boards which can be further processed into paper boxes, shopping bags, etc. They sell in both their domestic market i.e. Indonesia, and in the export market i.e. the US. Revenue last year was $5 billion, with 80% from Indonesia and 20% from the US. Overa ... The client is an Indonesian producer of paper boards which can be further processed into paper boxes, shopping bags, etc. They sell in both their domestic market i.e. Indonesia, and in the e ... (Open whole case)
8.2k
Times solved
4.6
< 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)
2.2k
Times solved
3.2
< 100 Ratings
Advanced
Difficulty
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)
9.1k
Times solved
4.4
100+ Ratings
Beginner
Difficulty
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)
2.6k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
The municipal utility Hamburg Energized is a local energy retail (power and gas) and distribution grid company active in the city of Hamburg. The majority of shares of Hamburg Energized is held by the city itself. As the distribution system operator of Hamburg, Hamburg Energized is responsible for t ... The municipal utility Hamburg Energized is a local energy retail (power and gas) and distribution grid company active in the city of Hamburg. The majority of shares of Hamburg Energized is h ... (Open whole case)
35.1k
Times solved
4.4
600+ Ratings
Intermediate
Difficulty
Your client is a Franchisee of a popular Steakhouse-chain in Germany. The Franchisee currently owns 2 Steakhouse-restaurants and wants you to investigate how well these perform and if there is any way for improvement? Your client is a Franchisee of a popular Steakhouse-chain in Germany. The Franchisee currently owns 2 Steakhouse-restaurants and wants you to investigate how well these perform and if there is any way for improvement? (Open whole case)
7.8k
Times solved
4.4
200+ Ratings
Advanced
Difficulty
Your client is a newly founded protein company. Its owners are two brothers. One of them is a chemist and the other one is a very famous fitness model and personal trainer on YouTube. They intend to enter the nutrition supplements industry where they want to focus on protein supplementation for body ... Your client is a newly founded protein company. Its owners are two brothers. One of them is a chemist and the other one is a very famous fitness model and personal trainer on YouTube. They i ... (Open whole case)
11.3k
Times solved
4.0
200+ Ratings
Advanced
Difficulty
Your client is Madhouse Studios, one of the largest anime producers in Japan. The anime-industry is flourishing. Originally revenue was generated mainly in Japan but the trend is that revenues outside of Japan are growing at a steady rate of 15% a year as more and more non-Japanese people enjoy anim ... Your client is Madhouse Studios, one of the largest anime producers in Japan. The anime-industry is flourishing. Originally revenue was generated mainly in Japan but the trend is that revenu ... (Open whole case)
6.7k
Times solved
4.2
100+ Ratings
Advanced
Difficulty
101 - 120 of 223 results

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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.

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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.