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.
Practice With Cases on Various Topics
Learn the case interview basics, practice with 40+ cases, and benefit from extensive test materials, and interactive self-study tools.
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Working capital and cash flow are core drivers of a company’s liquidity and financial health, and they frequently come up in finance interviews. This case will test your understanding of working capital basics, the cash conversion cycle, links to free cash flow, and practical ways companies manage s
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Working capital and cash flow are core drivers of a company’s liquidity and financial health, and they frequently come up in finance interviews. This case will test your understanding of wor
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(Open whole case)
< 100
Times solved
Intermediate
Difficulty
Style:
Valuing energy and natural resources companies is very different from other industries. Commodity price swings, capital intensity, and the role of reserves make traditional models harder to apply directly. In interviews, you’ll be expected to show that you can adapt standard finance tools to th
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Valuing energy and natural resources companies is very different from other industries. Commodity price swings, capital intensity, and the role of reserves make traditional models harder to
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(Open whole case)
< 100
Times solved
Intermediate
Difficulty
Style:
Topics:
An Initial Public Offering (IPO) is one of the most important events in a company’s lifecycle and a frequent topic in investment banking interviews. This case will test your understanding of IPO basics, process steps, valuation methods, and recent market dynamics.
An Initial Public Offering (IPO) is one of the most important events in a company’s lifecycle and a frequent topic in investment banking interviews. This case will test your understanding of IPO basics, process steps, valuation methods, and recent market dynamics.
(Open whole case)
< 100
Times solved
Beginner
Difficulty
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This set explores the fundamentals of restructuring and distressed M&A, focusing on valuation, capital structure, financing tools, and practical deal dynamics. It introduces the key differences between healthy-company M&A and distress situations, where speed, liquidity, and creditor negotiat
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This set explores the fundamentals of restructuring and distressed M&A, focusing on valuation, capital structure, financing tools, and practical deal dynamics. It introduces the key diff
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(Open whole case)
< 100
Times solved
Beginner
Difficulty
Style:
This question set explores the essentials of Mergers & Acquisitions (M&A) with a strong focus on synergies, valuation implications, and deal structuring. The progression starts with a general rationale for M&A, then moves into mechanics like accretion/dilution and synergy valuation, befo
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This question set explores the essentials of Mergers & Acquisitions (M&A) with a strong focus on synergies, valuation implications, and deal structuring. The progression starts with
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(Open whole case)
< 100
Times solved
Intermediate
Difficulty
Style:
This set of questions is designed to help you master the core concepts behind a company’s Cost of Capital. The progression takes you from the mechanics of calculating the Weighted Average Cost of Capital (WACC) to how risk factors like Beta and Size Premiums are incorporated, and
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This set of questions is designed to help you master the core concepts behind a company’s Cost of Capital. The progression takes you from the mechanics of calculating the Weighted
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(Open whole case)
< 100
Times solved
Intermediate
Difficulty
Style:
Topics:
This question set covers the fundamentals of debt instruments, credit metrics, and risk assessment. It mixes definitions, calculations, and case-style questions to prepare you for corporate finance and investment banking interviews.
This question set covers the fundamentals of debt instruments, credit metrics, and risk assessment. It mixes definitions, calculations, and case-style questions to prepare you for corporate finance and investment banking interviews.
(Open whole case)
< 100
Times solved
Intermediate
Difficulty
Style:
This question set explores how companies use forwards, swaps, and options in practice to manage risk. You’ll cover theory, applications, and calculations. The aim is to test not only technical knowledge but also structured reasoning when applying derivatives to real-world corporate finance situation
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This question set explores how companies use forwards, swaps, and options in practice to manage risk. You’ll cover theory, applications, and calculations. The aim is to test not only technic
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(Open whole case)
< 100
Times solved
Advanced
Difficulty
Style:
This set of questions helps you apply key LBO concepts in practical, realistic interview scenarios. You'll explore how leveraged buyout logic is used to assess deal structures, compare financing options, and evaluate the impact of working capital changes, covenants, and dividend recapitalizations on
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This set of questions helps you apply key LBO concepts in practical, realistic interview scenarios. You'll explore how leveraged buyout logic is used to assess deal structures, compare finan
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(Open whole case)
100+
Times solved
Intermediate
Difficulty
Style:
A mid-sized European industrials company, SteelTech AG, is considering acquiring a smaller competitor, BoltWerk GmbH, to expand its product portfolio and gain market share. You are part of the M&A advisory team. The CEO asks you to do a quick assessment of whether the acquisition makes strategic
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A mid-sized European industrials company, SteelTech AG, is considering acquiring a smaller competitor, BoltWerk GmbH, to expand its product portfolio and gain market share. You are part of t
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(Open whole case)
< 100
Times solved
Intermediate
Difficulty
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Style:
This question set sharpens your understanding of advanced accounting topics essential for finance roles. It covers areas like stock-based compensation, deferred taxes, goodwill impairment, and working capital.Plan for 35–45 minutes to complete the set. Use the model answers to check your reasoning a
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This question set sharpens your understanding of advanced accounting topics essential for finance roles. It covers areas like stock-based compensation, deferred taxes, goodwill impairment, a
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(Open whole case)
100+
Times solved
Advanced
Difficulty
Style:
You’re advising FreshHarvest AG, a fast-growing food distribution company based in Germany. They operate on tight margins, high volumes, and have recently secured several new retail partners. The CFO wants to better understand how working capital decisions and seasonal dynamics impact their free cas
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You’re advising FreshHarvest AG, a fast-growing food distribution company based in Germany. They operate on tight margins, high volumes, and have recently secured several new retail partners
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(Open whole case)
200+
Times solved
Intermediate
Difficulty
Style:
This question set helps you deepen your understanding of LBO modeling by covering key mechanics such as capital structure, debt repayment flows, purchase price allocation, and return calculations. You'll practice explaining value creation levers, modeling revolvers and PIK debt, and adjusting financ
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This question set helps you deepen your understanding of LBO modeling by covering key mechanics such as capital structure, debt repayment flows, purchase price allocation, and return calcula
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(Open whole case)
100+
Times solved
Advanced
Difficulty
Style:
This question set helps you strengthen your valuation fundamentals by covering core techniques used in public and private company valuation, tax asset treatment, and sector-specific approaches. You'll explore how to estimate acquisition premiums, work with Net Operating Losses, and understand how va
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This question set helps you strengthen your valuation fundamentals by covering core techniques used in public and private company valuation, tax asset treatment, and sector-specific approach
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(Open whole case)
100+
Times solved
Intermediate
Difficulty
Style:
You’re working on a DCF valuation for CloudCore Inc., a publicly traded cloud computing company. You’ve built a standard unlevered DCF model using a WACC of 10% and based on your 5-year forecast, the Enterprise Value (EV) currently comes out to $200 million.
You’re working on a DCF valuation for CloudCore Inc., a publicly traded cloud computing company. You’ve built a standard unlevered DCF model using a WACC of 10% and based on your 5-year forecast, the Enterprise Value (EV) currently comes out to $200 million.
(Open whole case)
200+
Times solved
Intermediate
Difficulty
Style:
This question set helps you build a solid foundation in M&A modeling by covering the key drivers of accretion and dilution, deal structuring, and synergy analysis. You’ll review the mechanics of a basic merger model, explore how different financing methods impact EPS, and understand strategic co
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This question set helps you build a solid foundation in M&A modeling by covering the key drivers of accretion and dilution, deal structuring, and synergy analysis. You’ll review the mech
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(Open whole case)
300+
Times solved
Beginner
Difficulty
Style:
This set of questions focuses on IPO valuation using Stripe as an example. It tests your understanding of core valuation methods and your ability to apply them in realistic, interview-style scenarios.Set aside 30–35 minutes for the whole set. Each question includes a model answer to check your appro
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This set of questions focuses on IPO valuation using Stripe as an example. It tests your understanding of core valuation methods and your ability to apply them in realistic, interview-style
...
(Open whole case)
100+
Times solved
Advanced
Difficulty
Style:
This set of questions is designed to help you prepare for the most common valuation topics in finance interviews. It covers the basics (like DCF, comparables, and multiples) but also includes practical scenarios that test whether you can apply these concepts in context.Set aside about 30–35 minutes
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This set of questions is designed to help you prepare for the most common valuation topics in finance interviews. It covers the basics (like DCF, comparables, and multiples) but also include
...
(Open whole case)
300+
Times solved
Beginner
Difficulty
Style:
This question set helps you go beyond the basics of valuation by comparing key methodologies and exploring when and how to use each one effectively. You’ll review core approaches like DCF, comparables, and precedent transactions, and build on that with LBO analysis, liquidation valuation, and indust
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This question set helps you go beyond the basics of valuation by comparing key methodologies and exploring when and how to use each one effectively. You’ll review core approaches like DCF, c
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(Open whole case)
200+
Times solved
Intermediate
Difficulty
Style:
This set of questions is designed to help you master key concepts in Leveraged Buyouts (LBOs). The difficulty progresses from foundational questions about the mechanics of an LBO and the role of leverage, to more advanced concepts like financial statement adjustments, calculating debt capacity, and
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This set of questions is designed to help you master key concepts in Leveraged Buyouts (LBOs). The difficulty progresses from foundational questions about the mechanics of an LBO and the rol
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(Open whole case)
100+
Times solved
Beginner
Difficulty
Any Open Questions Left? Check Out Our FAQ
What are cases?
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.