Practice With Cases on Various Topics

Learn the case interview basics, practice with 200+ cases, and benefit from extensive test materials, and interactive self-study tools.
Sort by
Most relevant
Times solved descending
Times solved ascending
Rating descending
Rating ascending
Upload date descending
Upload date ascending
Style
Candidate-led
Interviewer-led
Topic
Audit
Brain teaser
Capacity change
Competitive response
Digital Transformation
Growth strategy
Health Care
Market analysis
Market entry
Market sizing
Mergers & Acquisition
New product
Non-conventional
Operations strategy
Organizational behavior
Pricing
Profitability analysis
Public Sector
Restructuring
Sustainability
Valuation
Difficulty
Beginner
Intermediate
Advanced
Company
Bain
BCG Platinion
BearingPoint
Berg Lund
Deloitte
DHL Consulting
ECON
EY-Parthenon
Forvis Mazars
FTI-Andersch
H&Z
Inverto
Mercedes-Benz Management Consulting
OC&C Strategy Consultants
Oliver Wyman
Roland Berger
RSM Ebner Stolz
RWE Inhouse Consulting
SET Management Consulting
Simon-Kucher
Stern Stewart
Struktur Management Partner
Telekom Strategy Consulting
thyssenkrupp Management Consulting
Volkswagen Group Consulting
Whiteshield Advisory
zeb
Language
English
German
Type
PrepLounge case
Real company case
Expert case
Rating
& up
& up
& up
& up
Video Case Solution
With video solution
Without video solution
Industry
Consulting
Finance
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)
7.7k
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)
11.2k
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
Get access to over 200 cases for your interview preparation.
Sign up now and solve your first case, either alone or together with another candidate that is currently preparing for their interview.
One day you are grocery shopping when you are approached by Barb B. Queue, the owner of the supermarket’s deli shop. Facing serious competition from other supermarkets and fast food chains, Barb is worried whether his shop is working alright, as lately profits have been stagnating. He had figured th ... One day you are grocery shopping when you are approached by Barb B. Queue, the owner of the supermarket’s deli shop. Facing serious competition from other supermarkets and fast food chains, ... (Open whole case)
13.4k
Times solved
4.5
500+ Ratings
Beginner
Difficulty
Your client is a large company in the Polish telecommunication sector, providing and maintaining the infrastructure for telephony and ADSL and offering services like phone & internet subscriptions and televison to consumers. As in most countries, the regulator has ruled that new entrants must be ... Your client is a large company in the Polish telecommunication sector, providing and maintaining the infrastructure for telephony and ADSL and offering services like phone & internet sub ... (Open whole case)
13.7k
Times solved
4.3
600+ Ratings
Intermediate
Difficulty
You have successfully completed your trainings for your new role as Consultant at a consulting firm from PrepLounge’s FastTrack Application pool. After a briefing done by the CEO of an internationally known, globally operating industry corporation regarding the upcoming examination of the commercial ... You have successfully completed your trainings for your new role as Consultant at a consulting firm from PrepLounge’s FastTrack Application pool. After a briefing done by the CEO of an inter ... (Open whole case)
5.0k
Times solved
3.0
< 100 Ratings
Beginner
Difficulty
Do you remember that one friend in school that always asked you to help him out with homework? Well, things never change and as this friend learned that you are a consultant now, you receive a call. The friend’s grandfather, who was a captain, passed away and left an oil tanker behind. As your frien ... Do you remember that one friend in school that always asked you to help him out with homework? Well, things never change and as this friend learned that you are a consultant now, you receive ... (Open whole case)
8.2k
Times solved
4.0
200+ Ratings
Advanced
Difficulty
Your client is the CEO of Wiehle, a major household appliance manufacturer. It has been decided that a coffee machine should be added to the product line. The question is how this coffee machine should be designed: either to exclusively use Wiehle pads or to be compatible with the pads of existing t ... Your client is the CEO of Wiehle, a major household appliance manufacturer. It has been decided that a coffee machine should be added to the product line. The question is how this coffee mac ... (Open whole case)
6.0k
Times solved
4.5
300+ Ratings
Intermediate
Difficulty
We are an airline major operating out of India. We want to increase the number of passengers on all our flights. Could you please calculate the financial return of adding one more passenger per flight? We are an airline major operating out of India. We want to increase the number of passengers on all our flights. Could you please calculate the financial return of adding one more passenger per flight? (Open whole case)
18.1k
Times solved
4.3
700+ Ratings
Intermediate
Difficulty
The client, OnlineGo, is a European Internet Service Provider (ISP) that is contemplating entering the North American market. Currently, they hold a dominant position in the European market with two streams of income; a subscription fee and taking a percentage of all e-commerce transactions done by ... The client, OnlineGo, is a European Internet Service Provider (ISP) that is contemplating entering the North American market. Currently, they hold a dominant position in the European market ... (Open whole case)
16.6k
Times solved
4.4
500+ Ratings
Intermediate
Difficulty
Would you like to access all our cases?
Sign up now to prepare for your interview with real cases from top firms.
The airlines covering the Cologne to London route are facing a competitive threat from a new rail tunnel connecting Britain and Germany by train. Which all factors do you think the airlines should consider before reacting to this threat? The airlines covering the Cologne to London route are facing a competitive threat from a new rail tunnel connecting Britain and Germany by train. Which all factors do you think the airlines should consider before reacting to this threat? (Open whole case)
5.3k
Times solved
3.8
< 100 Ratings
Beginner
Difficulty
We are a profitable American provider of fire and water remediation services. We are generally hired by insurance companies to provide cleaning services in the wake of burning and flooding damages. We we would like your counsel on whether to enter the growing USA traditional resi ... We are a profitable American provider of fire and water remediation services. We are generally hired by insurance companies to provide cleaning services in the wake of burning ... (Open whole case)
8.4k
Times solved
4.3
600+ Ratings
Intermediate
Difficulty
We are a reputed law firm. We are thinking of hiring associates right out of college at $120,000 per year. Do you think it is a good idea? We are a reputed law firm. We are thinking of hiring associates right out of college at $120,000 per year. Do you think it is a good idea? (Open whole case)
5.6k
Times solved
4.0
100+ Ratings
Beginner
Difficulty
We are thinking of establishing a door-to-door distribution of an existing online newspaper in Kolkata, India. We haven't spent much time on how the process would work in practice yet. Can you help us evaluate the feasibility of the plan? We are thinking of establishing a door-to-door distribution of an existing online newspaper in Kolkata, India. We haven't spent much time on how the process would work in practice yet. Can you help us evaluate the feasibility of the plan? (Open whole case)
4.7k
Times solved
3.7
100+ Ratings
Beginner
Difficulty
We are a global toothbrush producing company. Our portfolio consists of two kinds of toothbrushes - 'manual' that sells for $5 and an electric 'rechargeable' that sells for $60. Last year, a competitor introduced a battery-powered electric “spinbrush” that sells for $8.5 and  ... We are a global toothbrush producing company. Our portfolio consists of two kinds of toothbrushes - 'manual' that sells for $5 and an electric 'rechargeable' that sells for $60. La ... (Open whole case)
13.4k
Times solved
4.3
1.1k Ratings
Intermediate
Difficulty
We are a premium brand apparel retailer facing a consistent decrease in market share. We would like you to figure out why this is happening and provide recommendations to reverse this trend. We are a premium brand apparel retailer facing a consistent decrease in market share. We would like you to figure out why this is happening and provide recommendations to reverse this trend. (Open whole case)
8.5k
Times solved
4.2
400+ Ratings
Intermediate
Difficulty
We are a warehouser (B2B) and have been facing a decline in profits since past 2 years. We would like you to figure out why this is happening and provide recommendations to reverse this trend. We are a warehouser (B2B) and have been facing a decline in profits since past 2 years. We would like you to figure out why this is happening and provide recommendations to reverse this trend. (Open whole case)
4.8k
Times solved
4.1
200+ Ratings
Intermediate
Difficulty
We are a Canada bus transport service operating between major cities. We have been losing money for the past 5 years. Our new CEO thinks that we need to aggressively cut costs in order to return to profitability. We also suspect the over-operated routes as well as the new ro ... We are a Canada bus transport service operating between major cities. We have been losing money for the past 5 years. Our new CEO thinks that we need to aggressively cut costs in order ... (Open whole case)
5.5k
Times solved
3.8
300+ Ratings
Beginner
Difficulty
We are a private equity firm operating primarily in the automotive industry. We would like you to figure out whether we should increase our portfolio in the sensor market or not.We would like you to do a profit/margin growth potential analysis and tell us how we can add value to this compa ... We are a private equity firm operating primarily in the automotive industry. We would like you to figure out whether we should increase our portfolio in the sensor market or not.We would lik ... (Open whole case)
8.8k
Times solved
4.1
300+ Ratings
Intermediate
Difficulty
Incos is a global manufacturer of writing products with divisions in North America, Europe and South-East Asia. Their global sales are $60 m and their profits amounted to around $30 m. Their European division who manufactures and sells disposable pens is experiencing flattening sales and a decreasin ... Incos is a global manufacturer of writing products with divisions in North America, Europe and South-East Asia. Their global sales are $60 m and their profits amounted to around $30 m. Their ... (Open whole case)
41.5k
Times solved
4.5
3.2k Ratings
Advanced
Difficulty
141 - 160 of 237 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.