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.
Company case by Telekom Strategy Consulting
You recently joined Deutsche Telekom as a strategic project manager for the fiber optic expansion initiative. In this role, you act as an internal consultant, providing strategic guidance to ensure a successful fiber optic rollout in a mid-sized German city known for its vibrant tech industry. Your
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You recently joined Deutsche Telekom as a strategic project manager for the fiber optic expansion initiative. In this role, you act as an internal consultant, providing strategic guidance to
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(Open whole case)
3.7k
Times solved
Intermediate
Difficulty
Company case by accilium
Our client, Transportation Tech Co., is a key player in the transportation space. Recently, the client developed an innovative "kids in school (KIS)" device which it believes could prove valuable to schools and parents in Austria or Germany. We have been engaged to help our client determine whether
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Our client, Transportation Tech Co., is a key player in the transportation space. Recently, the client developed an innovative "kids in school (KIS)" device which it believes could prove val
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(Open whole case)
4.1k
Times solved
Intermediate
Difficulty
Company case by Roland Berger
Style:
Sensorio Hightech GmbH is a leading manufacturer of technically advanced consumer electronics sensors based in Germany with EUR 500 m in revenues. It is a successfully growing affiliate with technically advanced consumer electronics sensors as its main business. Sensorio Hightech GmbH is looking at
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Sensorio Hightech GmbH is a leading manufacturer of technically advanced consumer electronics sensors based in Germany with EUR 500 m in revenues. It is a successfully growing affiliate with
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(Open whole case)
13.6k
Times solved
Intermediate
Difficulty
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Company case by E.ON Inhouse Consulting
Climate change has become one of the biggest challenges in the 21st century, and with roughly 75% of all CO₂ emissions coming from energy, this sector plays a key role in the transition to a reduced carbon footprint. E.ON has taken up on the challenge to promote more sustainable and efficient energy
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Climate change has become one of the biggest challenges in the 21st century, and with roughly 75% of all CO₂ emissions coming from energy, this sector plays a key role in the transition to a
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(Open whole case)
9.3k
Times solved
Intermediate
Difficulty
Company case by Bain & Company
Style:
Our client BeautyCo is a large European perfumery company with 500 shops across Europe. However, BeautyCo has been struggling with a decrease in profitability for some time and would like to work with us to understand what the causes and possible actions could be. Therefore, as a first step the clie
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Our client BeautyCo is a large European perfumery company with 500 shops across Europe. However, BeautyCo has been struggling with a decrease in profitability for some time and would like to
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(Open whole case)
29.2k
Times solved
Intermediate
Difficulty
Company case by Whiteshield Advisory
This case is representative of the type of problems that a client might engage Whiteshield to help them with. Before asking you any questions about the case, I will give you the background that you will need. There are several issues that I would like to cover with you today; please do not be surpri
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This case is representative of the type of problems that a client might engage Whiteshield to help them with. Before asking you any questions about the case, I will give you the background t
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(Open whole case)
5.4k
Times solved
Intermediate
Difficulty
Company case by E.ON Inhouse Consulting
Topics:
The European Union pursues the target of lowering the CO₂ emissions of their residents. Therefore, the EU introduced a CO₂ tax to create incentives for consumers to switch to more climate friendly alternatives and stabilize carbon dioxide emissions. Accordingly, and as E.ON’s strategy focuses o
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The European Union pursues the target of lowering the CO₂ emissions of their residents. Therefore, the EU introduced a CO₂ tax to create incentives for consumers to switch to more climate fr
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(Open whole case)
3.0k
Times solved
Intermediate
Difficulty
Company case by BCG Platinion
The CIO of a major insurance company needs your support to renew the company's IT landscape as a starting point for their digital transformation.The IT landscape of the client is highly fragmented and integrated. Most IT applications are "legacy" monolithic custom developments (running on Mainframe)
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The CIO of a major insurance company needs your support to renew the company's IT landscape as a starting point for their digital transformation.The IT landscape of the client is highly frag
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(Open whole case)
11.9k
Times solved
Advanced
Difficulty
Company case by RWE Consulting
RWE is an international renewables company with a proud heritage of more than 125 years in the energy business. Recently, during the Capital Markets Day in 2023, RWE’s CEO renewed the company’s 2030 vision of being a global leader in green energy. To achieve this, additional substantial investments
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RWE is an international renewables company with a proud heritage of more than 125 years in the energy business. Recently, during the Capital Markets Day in 2023, RWE’s CEO renewed the compan
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(Open whole case)
22.8k
Times solved
Intermediate
Difficulty
Company case by Roland Berger
Style:
Onlinestar, an online retailer of furniture and garden products (core business), has grown significantly in recent years as a result of an expansion of its product portfolio. The company mainly imports goods from Chinese manufacturers but also operates its own production of cat lavatories (special b
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Onlinestar, an online retailer of furniture and garden products (core business), has grown significantly in recent years as a result of an expansion of its product portfolio. The company mai
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(Open whole case)
97.6k
Times solved
Intermediate
Difficulty
Company case by Stern Stewart & Co.
Style:
The sporting goods manufacturer TIGER SE which is broadly positioned in Germany wants to increase its sales.The company is fully integrated along its value chain which means that the sporting goods are manufactured in-house and then sold to end consumers through its own distribution c
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The sporting goods manufacturer TIGER SE which is broadly positioned in Germany wants to increase its sales.The company is fully integrated along its value chain which means t
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(Open whole case)
31.5k
Times solved
Intermediate
Difficulty
Company case by Bain & Company
Style:
You have inherited the “Old Winery” from your grandfather, a winery that has been family-owned for five generations and can be dated back to the 16th century.Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in a conventional way, i.e. they
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You have inherited the “Old Winery” from your grandfather, a winery that has been family-owned for five generations and can be dated back to the 16th century.Half of the eleven hectares are
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(Open whole case)
127.9k
Times solved
Intermediate
Difficulty
Company case by Oliver Wyman
Style:
Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below the expected numbers. The management has engaged you to support them in understanding the reasons and advise
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Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below
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(Open whole case)
126.0k
Times solved
Intermediate
Difficulty
Company case by Deloitte
Style:
Duraflex is a German footwear company with annual men’s footwear sales of approximately €1 b.They have always relied on the boot market for the majority of their volume. In this market they compete with three other major competitors.In the fall of 2019, Badger – one of Duraflex’s competitiors – laun
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Duraflex is a German footwear company with annual men’s footwear sales of approximately €1 b.They have always relied on the boot market for the majority of their volume. In this market they
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(Open whole case)
94.2k
Times solved
Intermediate
Difficulty
Expert case by Hagen
Style:
GroceryWholesaleCo is a leading international grocery wholesaler that sells, markets, and distributes food products, equipment, and supplies to restaurants, healthcare and educational facilities, lodging establishments, and other customers who prepare meals away from home. Historically, the client w
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GroceryWholesaleCo is a leading international grocery wholesaler that sells, markets, and distributes food products, equipment, and supplies to restaurants, healthcare and educational facili
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(Open whole case)
12.8k
Times solved
Intermediate
Difficulty
Expert case by Dennis
Style:
Salty Boy Inc. is an underground salt mine in Texas whose new leadership are supporters of the circular economy. Circular economy provides a pathway towards more sustainable production and consumption patterns – CE introduces circularity to many areas of production cycles and encourages using renewa
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Salty Boy Inc. is an underground salt mine in Texas whose new leadership are supporters of the circular economy. Circular economy provides a pathway towards more sustainable production and c
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(Open whole case)
300+
Times solved
Intermediate
Difficulty
Expert case by Dennis
Style:
Your client is Alistair, a brew master from the east coast of the United States. He has developed a beer recipe he believes will revolutionize the beer drinking experience in the US. Alistair was able to convince his family and friends to invest in his business idea after letting them taste a sample
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Your client is Alistair, a brew master from the east coast of the United States. He has developed a beer recipe he believes will revolutionize the beer drinking experience in the US. Alistai
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(Open whole case)
800+
Times solved
Beginner
Difficulty
Expert case by Ian
Style:
Estimate the number of people on the internet at this exact moment in time.Clarifying information:We can assume it is 11am ESTIt is a weekdayOn the internet means on their computer or their phone====================NOTE==========================Please make sure to check the video URL solution to get
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Estimate the number of people on the internet at this exact moment in time.Clarifying information:We can assume it is 11am ESTIt is a weekdayOn the internet means on their computer or their
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(Open whole case)
1.4k
Times solved
Advanced
Difficulty
Your client, a private equity fund, is considering entry into the wine business through the acquisition of a vineyard called “Piumarolo” in Italy's renowned Piedmont region. Since this marks the fund's initial foray into this specific sector, they have engaged our team to conduct a preliminary marke
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Your client, a private equity fund, is considering entry into the wine business through the acquisition of a vineyard called “Piumarolo” in Italy's renowned Piedmont region. Since this marks
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(Open whole case)
1.7k
Times solved
Beginner
Difficulty
Expert case by Ian
Style:
Note: If you have not already done so, first work through the 1st part of this case: https://www.preplounge.com/en/management-consulting-cases/candidate-led-usual-style/intermediate/mbb-climate-change-operations-285This case is designed to show you how a case can evolve/change based on new informati
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Note: If you have not already done so, first work through the 1st part of this case: https://www.preplounge.com/en/management-consulting-cases/candidate-led-usual-style/intermediate/mbb-clim
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(Open whole case)
900+
Times solved
Intermediate
Difficulty
