Oliver Wyman - Summer Intern (2025) - Tokyo

Company:Oliver Wyman

Description:

Who We Are

Oliver Wyman is a global leader in management consulting. With offices in more than 70 cities across 30 countries, Oliver Wyman combines deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation. The firm has more than 6,000 professionals around the world who work with clients to optimize their business, improve their operations and risk profile, and accelerate their organizational performance to seize the most attractive opportunities. Oliver Wyman is a business of Marsh McLennan [NYSE: MMC].

Oliver Wyman’s thought leadership is evident in our agenda-setting books, white papers, research reports, and articles in the business press. Our clients are the CEOs and executive teams of the top Global 1000 companies.

What you will do

As a new joiner at Oliver Wyman, you will have the opportunity to work on challenging projects for large clients worldwide, developing your expertise quickly and making an immediate impact. You'll work alongside senior colleagues and clients, working as one to help to solve complex problems and drive meaningful change.

We believe in providing our consultants with the freedom and support they need to succeed in their own way. We provide an apprenticeship model for learning on the job, supplemented by formal training to help you rapidly develop your communication, presentation, and client management skills.

Why join us? ​

Come aboard if you are excited by challenges and at ease working across different cultures. You will step out of your comfort zone, finding stretch opportunities along every step of the journey. You will also find genuine colleagues who speak their minds and measure success not by the number of hours worked but by what gets accomplished.  ​

Immediate impact, continuous challenge

• Internships at Oliver Wyman provide a true taste of life as a consultant and unique preparation for a full-time role.
• During your internship from June to August, you’ll work on 1-2 challenging projects that have a significant impact on clients, industries, and societies.
• You’ll be a full team member, with responsibility for a distinct piece of work that will help the team deliver breakthrough impact.
• You will be based in Tokyo office but may have the opportunity to travel for project work.
• We’ll ask you to challenge the norm and strive to build something new to shape our firm and the world around us.

Chart your course; we support the journey

• Throughout your internship, we will demonstrate our commitment to your growth and development, and to helping you chart your post-graduate course.
• You’ll learn on the job via our apprenticeship model. Much of your focus will be on research and analysis, and you may also have opportunities to begin developing your communication, presentation, and client-management skills.
• We care about you succeeding and you’ll be supported every step of the way. You will be mentored and coached by numerous colleagues, from partners and consultants to a dedicated “buddy,” formal “mentor,” and an “intern captain” overseeing the program.

We hire you to be you

• Our open, inclusive, and down-to-earth culture will enable you to bring your authentic self to work.
• There’s no corporate mold to fit and hierarchy doesn’t get in the way.

Who can apply?​

• Our Tokyo internship program is open to penultimate-year students graduating in 2026.
• We look for people who display initiative, intuition, and creativity with a strong problem solving and analytical mindset. We do not require specific academic majors or industry experience and look for diversity of experience and skills.  We value extracurricular activities and evidence of leading an interesting and impactful life outside of your studies. 
• Language skills: Fluency Japanese is a MUST, fluency in English is required.

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How to apply? ​

Online Application Language: English only; To change your language setting, please visit the language settings tab located at the top right corner of the application page. Alternatively, use an English browser to complete your application.

The required application documents include:

• English resume (with GPA and expected graduation time clearly listed)
• English cover letter
• All past academic transcript

Please upload all above documents as 1 PDF file where requested to submit resumes and format your document name: First Name_Last Name_University_Graduation Time

Oliver Wyman, a business of Marsh McLennan (NYSE: MMC), is a management consulting firm combining deep industry knowledge with specialized expertise to help clients optimize their business, improve operations and accelerate performance. Marsh McLennan is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit oliverwyman.com, or follow on LinkedIn and X.Marsh McLennan is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh McLennan is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh McLennan colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.