When applying to top consulting firms, one of the most crucial stages of the interview process is the case interview. This format is designed to assess your analytical competencies, problem-solving skills, and ability to think strategically under pressure. Let's take a look at what to expect.
A case interview is a 30-minute simulation of a typical business project that consultants may have worked on. Cases provide a real example of an on-the-job experience and the assumption is that if a candidate is successfully able to tackle a case interview, he or she is also more likely to be a successful management consultant.
Case studies are the most important and usually the longest part of consulting interviews. In addition to the case study, the interview typically includes introductory small talk, a personal fit interview, and closing questions (see the illustration below).
Many companies review and standardize their consulting cases prior to a real interview to ensure that the case is neither too difficult nor too easy. Companies also ensure that a variety of skills are tested during the interviews.
The Typical Flow of a Case Interview
The case interview typically follows a structured flow to ensure that both the interviewer and the candidate cover all necessary aspects of the business problem. It involves the following phases:
1. Case Presentation and Problem Understanding
To start off, the interviewer will present a specific business problem or scenario. This could range from market entry considerations, to profitability issues, or organizational changes. The problem is usually based on real-world business issues that the consulting firm dealt with in the past.
You are expected to listen carefully, take notes, and clarify any points that are not clear to fully understand the scope and context of the problem.
👉 To get a better feeling for possible case prompts, check out the following beginner cases.
You have been hired to support the owner of a bike-shop as a business consultant. The bike-shop has suffered a significant revenue decline during the last year, and now the owner would like you to assess the situation and options for the way forward.They want to know last year’s profit, i.e. how it was affected by the revenue decline, and what the priority actions are to survive the next year. (short term)In addition they would like to understand the strategic competitive position of the shop better and how to increase revenues again mid- to long-term.
Our client (FastFood Co) is a fast-food company that has > 20 restaurants in the city. Recently, the business has encountered significant challenges, with net profit drops to negative.The client wants us to help them turn around the business. How would you help them?
Afterwards, you outline a structured approach or framework to tackle the problem. Common frameworks include the SWOT analysis, Porter’s Five Forces, or the 4P's, with which you can structure your information. This step demonstrates your ability to break down complex issues into manageable parts.
However, keep in mind that it is not enough to simply memorize the standard framework concepts. While standard frameworks are useful for a rudimentary outline of a case problem, they need to be optimized and adapted to the individual case. Don't worry, as this is a skill you can develop, but it definitely requires thorough preparation and practice.
Once you have crafted your structure, clearly explain your framework to the interviewer, ensuring he or she understands your thought process and logical flow.
3. Analysis and Problem Solving
Next, you dive into the analysis. During the interview, your interviewer may provide additional data, charts or exhibits. Analyze this information to support your framework and build your argument. Formulate hypotheses based on your analysis and test them against the data provided. If needed, adjust your approach based on your new findings.
During the quantitative analysis, perform the necessary calculations to support your findings. This could include market sizing estimations, profitability calculations or a cost analysis. Good mental math skills will definitely help in this phase.
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Once you have worked through your structure, provide clear, and actionable recommendations based on your analysis. Use the Pyramid Principle of communication, highlight your key findings and explain how they address the problem.
You should also be ready to justify your suggestions with evidence from your analysis (i. e. data) and discuss possible next steps or further areas of investigation that the client may wish to consider.
After all, the interviewer may question your conclusions or ask for further clarification. Be prepared to defend your recommendations and discuss alternative perspectives.
After, all the best way to prepare for your interview is practice. Explore our Case Library with real examples now!
Your client tk Commodity Trade (tk ComT) is a global materials trader - they buy and sell raw materials. tk ComT had stable EBITDA margins in recent years. They consider expanding their target market and entering the Lithium (electric vehicle battery grade) trade, due to the current high demand for electric cars and Lithium-ion batteries. The client is concerned about minimizing the cash spending and about improving the payback period for this market-entry campaign, due to corporate cash policy.As a consultant, you are expected to calculate the size of the Lithium market and to assess the payback periods for an organic market entry (with own resources) as well as for the acquisition of an established company. Finally, the client expects a proposal about the best market entry strategy and potential opportunities and risks.
Your client is an international Corporate & Investment Bank (CIB). It is France based and has already expanded to Poland (Warsaw), Asia and Americas. Your client now wants to look into the development of the existing hub in Warsaw and is contacting you to help him assess this option. How would you help him?
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 the operations and maintenance of the gas and electricity grid on customer level.In the course of the energy transition in Germany, the responsible board member for the technical grid operations, Jan Bremer, thinks about deploying Smart Meters in the gas and electricity grid. He approaches you with the request to conduct a feasibility analysis and to give a clear recommendation whether or not Hamburg Energized should use Smart Meters in its gas and electricity grid in the future.
Your client is the Government of Indonesia, specifically a joint committee formed between a few key ministries including the Ministry of Marine Affairs & Fisheries, Ministry of Tourism and Ministry of Environment & Forestry. Indonesia is one of the largest developing countries in the world, with a population of about 285M people and an average monthly income of only USD 500. Located in Southeast Asia, Indonesia is actually a vast archipelago comprised of 17,000 islands, giving it one of the longest and most complex coastlines in the world. It is also part of the Coral Triangle, an area demarcated by scientists as the global epicenter of marine diversity. Your client tells you that Indonesia's once pristine coral reefs have seen a rapid decline over the past decade. They have come to you for help and want to figure out what is causing the problem.
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.
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 cash flow profile and ultimately their valuation.Your task is to assess how working capital evolves over the forecast period, how payment term shifts affect cash flow, and how to reflect seasonality in a dynamic forecasting model.This case will test your analytical skills, cash flow understanding, and judgment around operational finance levers.
Your client is a D2C (direct to customer) online fashion business in a developing country. It is a new brand, launched about 2 years ago and founded by ex-investment bankers. Their brand focuses on trendy, edgy design that is less main-stream (versus big brands like H&M, Uniqlo, Zara etc) for adult men. While they have been growing fast, they want to understand how they can further improve their sales.
Our client is a Chinese publisher called AnimeCo who is looking to publish a new book based on the popular Anime series Little Panda. This series has been highly popular in China with millions of viewers every day and the publisher is looking to capitalize on this potentially.They have asked us to provide advice on whether this will be a good investment and if they should move forward with it. They want to know the total market size, potential revenue & potential profit.
Du befindest Dich derzeit in einem strategischen Projekteinsatz bei der Northern Retail Bank (NRB), die vor drei Jahren von einem Finanzinvestor übernommen wurde. Während des Mittagessens lädt Dich der CEO zu einem Espresso in sein Büro ein. Dort erläutert er, dass der Finanzinvestor bestrebt ist, den Unternehmenswert der Bank zu steigern – möglicherweise für einen künftigen Verkauf oder Börsengang, weitere Details stehen zum jetzigen Zeitpunkt noch nicht fest. Gemeinsam mit Deinem Projektteam sollst Du nun Maßnahmen entwickeln, um die Profitabilität der Bank zu verbessern. Angesichts der Ergebnisse des letzten Geschäftsjahres und des intensiven Wettbewerbsdrucks sieht der CEO hier dringenden Handlungsbedarf.Der CEO bittet Dich darum, in 30–45 Minuten in sein Büro zurückzukommen, um Deine fachkundige Einschätzung für erste konkrete Stellhebel zu diskutieren.
Our client is a leading TV/film studio. They are concerned about the part of their business that provides post-production services internally as well as externally.The profits of this division have stagnated in the recent time.Your task is to find ways to increase the profitability of the business.
As one of three management consultants with many years of experience, you have SET yourself the goal of founding your own management consultancy. The topics, contents and solution offering with which you can advise and support potential customers are clear. The legal company is already founded and registered in the commercial register. Now you must pitch your business plan to the banks to get the necessary start-up financing!Especially the banks are interested in the underlying rationale of the SET Management Consulting business model. Your goal is to think of relevant financial KPIs and be prepared to explain the underlying revenue and cost streams in more detail.
Sie werden vom Management der mittelständischen Packaging-Group gebeten, eine Einschätzung zur wirtschaftlichen Lage des Konzerns abzugeben. Im Rahmen der Analyse der operativen Ergebnisse der Auslandswerke soll das Werk identifiziert werden, bei dem der aktuell größte Handlungsbedarf besteht. Davon ausgehend sollen Optionen erarbeitet und bewertet werden, die der Kandidat dem Management im Umgang mit diesem Auslandswerk empfehlen würde und was ggf. auf Basis der Analyse für Rückschlüsse hinsichtlich der Konzernzahlen gezogen werden können.
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 printer paper subdivision of the organization, you are discussing the project with your project manager during lunch. Specifically, the question at hand is, how to get back on the track of growth. The CEO is willing to invest and has asked your team to provide and evaluate opportunities for growth.
Your client, ChemInt, is a global chemicals company that manufactures Ponsulene in some locations around the world.It has several joint ventures (JV) in Asian markets and in total 5 plants in China, Korea, Thailand, and Taiwan, all of which serve the local markets as well as neighboring markets including China.Due to the strong demand for Ponsulene and profitable margins in China, a number of new Chinese players are entering the market in China as well as in the neighboring countries. ChemInt has called in your company to estimate the influences on their business by these happenings.
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?
Our client is an alloy wheels manufacturer based in China. The client is contemplating entering the US market. At this point of time, the client sells the wheels in the China market. In order to make the wheels for the US market, he will have to expand its production capacity. As a result, whether to enter the US or not is a high-stake decision. He has hired BCG to advise him on this issue.
As a consultant at Mercedes-Benz Management Consulting (MBMC), you actively shape the desire for Mercedes-Benz as an iconic luxury brand. While you contribute to decisive projects that design the future of the world’s No.1 premium carmaker, you also develop your own career path, and have the unique possibility to build your personal brand and cultivate relationships with the top management.Your client on your current project is the head of Top-End Vehicles & Mercedes-AMG GmbH who reports directly to the CTO of the Mercedes-Benz Group AG. AMG represents the segment of performance luxury within the Mercedes-Benz portfolio.As part of your current project scope your client asks you to identify new opportunities to attract top-end customers & retain their loyalty. Therefore, you shall structure and explore the customer journey and identify possible measures regarding top end customer & Community Management. Furthermore, you shall quantitatively analyze an option to individualize AMG products along different regions and prepare them for decision.Finally, of course, the client is interested in your recommendation.
Your client is a German manufacturer of disguises for events and parties called KostümCo. They segment their products in two lines: round-the-year and seasonal products.Round-the-year products serve customers that celebrate birthdays and common parties during the whole year.Seasonal products aim at special occasions like the carnival or the beer festival in Munich and are only sold for some time before these events.KostümCo makes the design, manufacturing and resells the disguises to retailers in 5 different German cities.Recently, though, the largest retail customer complained that KostümCo’s prices are too high. After some internal analyses, the client found this to be due mainly to distribution costs. You have been asked to figure out how we can reduce distribution costs.
Your client is a leading retail coffee chain. They are present in several countries globally and are a popular brand in most of the markets that they operate in, with several thousands stores in operation.A key focus of the company currently is diversity & inclusion. In their biggest market which is the US, 1 in 4 people have some sort of disability. One realization the client has had is that their retail stores are not as inclusive to individuals with disabilities. McKinsey has been brought on to help them design more inclusive spaces in their retail stores.
Mastering the case interview is a crucial step in securing a consulting job. To perform well, you need to demonstrate structured thinking, analytical skills, and clear communication while solving a real-world business problem.
The interview typically follows a structured flow, starting with an introduction and resume discussion, followed by the case presentation, where you clarify the problem and outline a logical framework. From there, you analyze data, test hypotheses, and apply quantitative skills to arrive at well-supported recommendations. Finally, you summarize your findings and engage in a discussion to defend your approach.
Success in case interviews comes down to practice. Familiarizing yourself with common frameworks is useful, but true preparation involves adapting them to different cases, improving your problem-solving speed, and refining your communication. By structuring your thoughts clearly, staying flexible in your approach, and confidently presenting your findings, you’ll increase your chances of impressing your interviewer and landing an offer at a top consulting firm. 🚀
Let's Move On With the Next Articles:
The Personal Fit Interview
Basics of Case Interviews
The personal fit interview is a crucial part of the selection process in consulting. It’s often underestimated by candidates who tend to focus on the challenging case interviews only. But the personal fit interview is just as important! It’s all about determining if you’ll fit well within the team and align with the company culture. Read this article to find out why the personal fit interview matters so much and how to prepare effectively.
Consulting interviews are not just about your skills and knowledge — companies also want to see how well you align with their culture and values, often called "personal fit". This part of the interview is your chance to show you’re a natural addition to the team.Here’s a look at three common personal fit questions and some tips on how to answer them confidently and thoughtfully.
Every case interview has a certain structure. An important factor on how your case interview is going to proceed is if the interview is interviewer-led or candidate-led.We’d like to explain the two interview formats – candidate-led cases and interviewer-led cases – highlight their differences, and provide you with tips on how to excel in each of them.
