Oliver Wyman Internship 2027–2028: Programs, Deadlines & How to Apply

Last updated: July 2026

Oliver Wyman hires only 30 to 50 interns per year, offers a 90%+ return rate, and recruits roughly 15 months ahead of the internship start. For the 2027–2028 cycle (you apply during 2027, you intern in summer 2028), the US posting is expected between fall 2026 and winter 2027, with a deadline around late March 2027, targeting second-year undergraduates. Prep-site consensus says Oliver Wyman reviews applications as they arrive, so submitting in the first weeks matters more than meeting the deadline.

Quick Facts

The numbers that matter: a sophomore-year application window expected fall 2026 to March 2027, $2,100 per week pay, classes of just 30 to 50, and a 90%+ return offer rate from the firm's own campus-recruiting materials.

Yet most applicants don't realize this is a sophomore-apply program.

Externships are short, remote professional experience programs where you finish a real project with a real company. The Healthcare Operations Consulting Externship and the Beats by Dre Data Analytics Externship build exactly the quantitative analysis and client-project evidence that Oliver Wyman's application asks for. Explore all Externships.

What Is an Oliver Wyman Internship?

An Oliver Wyman internship is a paid, 8-to-10-week consulting placement that puts second-year undergraduates on live client engagements from day one. The firm is part of Marsh McLennan, operates across 60+ offices in 30 countries with 7,000+ professionals, and holds Vault's top-3 consulting ranking in EMEA (2026).

But what sets OW apart from MBB? It's the quantitative intensity: cases are candidate-led, numerically dense, and built on real client engagements.

And Glassdoor intern reviews give the firm 3.8 out of 5, with 99% saying they'd recommend it to a friend. With classes of just 30 to 50 interns, every consultant gets structured mentorship through a career adviser, talent manager, mentor, and buddy.

When Do Oliver Wyman Internship Applications Open for 2027–2028?

Oliver Wyman recruits roughly 15 months before the internship starts, and the flagship US internship targets sophomores. Based on the documented 2027 cycle, the posting went live by winter 2026 and closed March 29, 2026, for Class of 2028 students. The online assessment followed in spring 2026. For the summer 2028 cycle, expect the posting between fall 2026 and winter 2027, with a deadline around late March 2027, targeting Class of 2029 students. The skill-building window is now.

Why You Must Apply the Week Applications Open

Oliver Wyman fills spots before the posted deadline. Prep-site consensus says the firm reviews applications as they arrive: "waiting until the deadline is one of the most common mistakes."

And in the 2027 cycle, the posting closed March 29, 2026, but third-party mirrors appeared as early as February 2026, and the online assessment wasn't due until May.

So why does early submission matter so much? With only 30 to 50 spots in the US class, it's the difference between a live review and a full cohort.

Which Oliver Wyman Internship Programs Should You Target?

Oliver Wyman runs five early-career pathways. The flagship consulting internship lets you choose from five practice-preference areas on the application itself, making targeting precise from day one.

Apply via the Marsh McLennan early-careers portal. The flagship internship asks you to rank 3 offices and select from 5 preference areas: Generalist Consulting, Banking & Financial Services, AI/Data/Analytics, Technology Transformation, or PE/Deals/Diligence.

What Are the Eligibility Requirements?

From the official Summer 2027 US Intern job description (Built In mirror of Marsh McLennan posting R_342651):

• Year: second-year undergraduate in a four-year program (Class of 2028 for the 2027 cycle; expect Class of 2029 for summer 2028). This is a sophomore-apply program.

• Major: no specific academic major required. OW values extracurricular activities and evidence of leadership.

• Work authorization: unrestricted US work authorization necessary. Oliver Wyman does not sponsor, and CPT/OPT are explicitly restricted. International students should target non-US offices.

• Application materials: resume, cover letter, current GPA, SAT or ACT scores, and an unofficial transcript. Rank top 3 offices and select a practice-preference area.

Is the GPA a Hard Cutoff?

Oliver Wyman publishes no GPA floor, but the application requires your GPA, SAT/ACT scores, and an unofficial transcript, so academics are visibly screened even without a stated number. The firm's criteria emphasize initiative, intuition, creativity, and problem-solving alongside quantitative strength.

And since the class is only 30 to 50, every application gets close scrutiny.

But here's the bigger nuance: this is a sophomore-apply program. Students who wait until junior year have already missed the window entirely.

What Skills Does Oliver Wyman Look For, and How Do You Build Them?

Nine Oliver Wyman intern and actuarial job descriptions reveal a firm that screens for quantitative depth first and case-style judgment second. Quantitative and analytical reasoning appears in all nine. Communication and problem-solving each score 7 of 9.

And Python and R show up in 5 of 9, driven by the actuarial and AI/Data tracks.

But what does this pattern actually tell applicants? OW hires candidates who can structure a market-sizing problem under pressure, run the numbers, and present findings to a partner within the same interview.

How Is Demand for Consulting Interns Moving Right Now?

Build These Skills Before You Apply

Every top skill in the chart maps to a remote Externship where you finish a real company project before the application window opens.

Each Externship ends with a presented deliverable to a real company.

So when OW's small team reviews your application, a finished consulting-style project answers the question before the case interview even starts.

What Is the Oliver Wyman Application and Interview Process Like?

Oliver Wyman's process includes an online assessment followed by two interview rounds. The full sequence averages about 29 days from application to offer.

1. Online application via the Marsh McLennan early-careers portal: resume, cover letter, GPA, SAT/ACT scores, unofficial transcript. Rank your top 3 offices and select a practice-preference area from the 5 listed.

2. Online assessment (after shortlisting): numerical, verbal, and logical reasoning via SHL or Korn Ferry (format varies by region). About 30 minutes, up to 20 questions. Some versions apply negative marking. A few regions add a short recorded video interview.

3. First round: 2 interviews (~30 minutes each) with junior consultants or engagement managers. One case interview (candidate-led, quantitative) and one fit/conversational interview.

4. Final round: partner-led interviews. Typically 2 cases plus 1 behavioral with senior consultants or partners. Cases are built on real client engagements, heavily quantitative, with market-sizing and profitability problems. The full process averages ~29 days.

5. Offer. Classes are 30 to 50; community reports 90%+ return-offer rate once you are in.

Prepare with Oliver Wyman's own published practice cases (Urban Grocers, Supermarket Pharmacy, Dairy Farm, Oil & Gas Price Strategy) on their interview prep page.

What Students on Reddit Say

Here is what students who went through the process are saying:

How Do You Stand Out From 30–50 Selected Interns?

Three moves separate the sophomores who get interviews from those whose applications arrive after the class is full.

1. Apply as a sophomore, not a junior. Oliver Wyman's flagship internship targets second-year students. If you wait until junior year, the window has already closed. Start case prep freshman year and apply the fall of your sophomore year.

2. Build quantitative proof before the OA. The online assessment tests numerical reasoning under time pressure, and the case interviews are more quantitative than typical MBB cases. A remote Externship in data analytics or operations consulting proves you can run numbers on a real business problem, not just pass a practice test.

3. Choose your preference area deliberately. The application asks you to select from 5 practice areas (Generalist, Banking & FS, AI/Data, Tech Transformation, PE & Deals). Research which aligns with your coursework and extracurriculars, then reference that alignment in your cover letter. With a class this small, fit matters as much as skill.

What Other Companies Should You Consider?

If you are targeting strategy consulting internships, these firms recruit on similar timelines and test similar case-interview skills:

For a full timeline of every major consulting internship window, see the consulting internships guide.

FAQ

Can I still apply for a summer 2027 Oliver Wyman internship?

No. The US Summer 2027 Intern posting closed March 29, 2026, and was removed the next day. No US summer consulting internship is currently live. Watch the Oliver Wyman early-careers portal for the Summer 2028 posting, or check office-specific internships in Europe, Canada, and the Middle East.

When do Oliver Wyman applications open for summer 2028?

Oliver Wyman has not posted 2028 dates yet. Based on the 2027 cycle, expect the US posting between fall 2026 and winter 2027, with a deadline around late March 2027, targeting Class of 2029 sophomores. Submit within the first weeks: prep sites say the firm reviews as applications arrive.

Who is eligible for the Oliver Wyman summer internship?

The US consulting internship targets second-year undergraduates in four-year programs. Any major works; OW values leadership and life outside the classroom. You need unrestricted US work authorization: the firm does not sponsor, and CPT/OPT are restricted. MBAs apply to the separate Associate internship.

What is the Oliver Wyman online assessment like?

Shortlisted candidates take a numerical, verbal, and logical reasoning test via SHL or Korn Ferry, depending on region. The numerical section runs about 30 minutes with up to 20 questions on percentages, ratios, and chart interpretation. Some versions penalize wrong guesses. A few regions add a short recorded video interview.

How hard is the Oliver Wyman case interview?

Expect two rounds: two 30-minute interviews (case plus fit) with consultants, then a partner-led final with two cases and a behavioral. Cases are candidate-led, built on real engagements, and noticeably more quantitative than typical MBB cases. Practice mental math, market sizing, and OW's own published practice cases.

How much does an Oliver Wyman internship pay?

The Summer 2027 US posting listed $2,100 per week, roughly $21,000 over the full summer. MBA Summer Associates earned $32,850 for nine weeks plus a $3,000 signing bonus. Full-time post-MBA consultants start near $190,000 base. Actuarial interns reported $1,650 per week on community forums.

Do Oliver Wyman interns get return offers?

Yes, at unusually high rates. Oliver Wyman's own campus-recruiting materials cite a 90%+ return-offer rate across a class of 30 to 50 students, with over 70% accepting. Community reports vary by practice (one MBA thread cited 50% in a specific group), so treat the internship as a ten-week extended interview.

Does Oliver Wyman require a specific GPA?

No published GPA floor, but the application requires your GPA, SAT/ACT scores, and an unofficial transcript. Academics are visibly screened even without a stated number. The firm emphasizes initiative, creativity, and problem-solving alongside quantitative strength. Since the class is only 30 to 50, every application gets close scrutiny.

The Oliver Wyman window is expected to open this fall. Use the summer to build case-ready projects, practice numerical reasoning, and start networking with consultants at your target office. Explore Externships that build the skills Oliver Wyman tests.