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

Last updated: July 2026

Mizuho | Greenhill receives roughly 2,000 to 3,500 applications for approximately 15 to 25 M&A and restructuring summer analyst seats, putting the acceptance rate at 0.5 to 1%. Acquired by Mizuho Financial Group in December 2023 for $550 million, Greenhill now operates as the advisory arm of one of the world's largest financial groups while preserving its boutique deal-team culture. For the 2027–2028 cycle, applications are expected to open August to September 2027 with rolling review. Historically, 40 to 50% of Greenhill analysts exit to mega-fund private equity, and the combined Mizuho platform adds cross-border deal exposure that pre-acquisition Greenhill could not offer.

Quick Facts

Two numbers frame the challenge: 2,000 to 3,500 applications for roughly 15 to 25 M&A and restructuring seats, yielding a 0.5 to 1% acceptance rate. Rolling review starts when postings go live in August to September, so early submission and a referral from a current analyst do the work.

Externships are short, remote projects where you finish real work for a real company. The Wayfair AI Agent Engineering Externship and Beats by Dre Data Analytics Externship build the analytical rigor and data-driven storytelling a Mizuho | Greenhill application and its M&A-focused Superday reward. Explore all Externships.

What Is a Greenhill Internship?

A Greenhill internship, now branded Mizuho | Greenhill, is a paid, full-time, 10- to 11-week placement on the M&A advisory or restructuring teams that carry Greenhill's 27-year legacy within Mizuho Securities USA. Founded in 1996, Greenhill built its reputation as one of the premier independent advisory firms before Mizuho Financial Group acquired it in December 2023 for approximately $550 million. Post-acquisition, the advisory practice retained significant autonomy: lean deal teams, high intern responsibility, and direct client exposure from day one. The program begins with a 3- to 5-day structured onboarding covering financial modeling, valuation methodologies, and cross-border transaction structures, then places interns on live deals. Approximately 370 Greenhill employees were retained post-acquisition. With a 70 to 85% return offer rate for the M&A and restructuring tracks and first-year analyst total compensation of $180,000 to $220,000, the internship is a direct pipeline into one of the strongest PE-exit platforms in advisory banking.

When Do Greenhill Internship Applications Open for 2027–2028?

Mizuho | Greenhill's recruiting calendar follows a predictable pattern, though the Mizuho acquisition introduced some timing shifts. For the Summer 2028 cycle, applications are expected to open in August to September 2027 on the Mizuho Workday portal, with HireVue deadlines in October, first-round interviews running October through December, Superdays from November through February, and offers within 24 to 48 hours of a Superday. The critical insight: rolling review rewards early applicants, and with only 15 to 25 M&A and restructuring seats available, submitting in the first two weeks of the posting is a material advantage.

Why You Must Apply the Week Applications Open

Rolling review is the mechanism at Mizuho | Greenhill, not a footnote. Applications are expected to open in August or September 2027, and resume screening begins in earnest around January. But early applicants see priority review, and with 2,000 to 3,500 applications competing for 15 to 25 M&A and restructuring seats, the math is simple: submit the week the posting goes live on Mizuho's Workday portal, not the week before the HireVue deadline. An early application gives you more time to prepare for the Superday, where only about 25% of participants receive offers. A clean HireVue, a strong first-round technical showing, and a referral from a current analyst or associate can move your application to the top of the pile. Note that 75 to 80% of hires come from core target schools, so non-target candidates should apply especially early and lean on networking to differentiate.

Which Greenhill Internship Programs Should You Target?

Mizuho | Greenhill recruits across multiple banking tracks, but the M&A Advisory and Restructuring groups carry the Greenhill legacy brand and boutique culture. Which track should you target? If you want lean deal teams and the strongest PE exit opportunities, the M&A or Restructuring advisory tracks are the clear choice. If you want broader exposure to corporate lending and cross-border transactions, the Investment & Corporate Banking track leverages the full Mizuho platform.

See every open role on the Mizuho Workday portal. The Sophomore Women in Banking Program is a separate pipeline program open to full-time sophomore undergraduate women that can lead to a summer analyst offer. Total intern class size across all banking tracks is approximately 65 students in the Americas, with 15 to 25 in the M&A and Restructuring advisory tracks specifically.

What Are the Eligibility Requirements?

Mizuho | Greenhill's requirements are demanding, particularly for the Greenhill advisory tracks:

• Enrollment: undergraduate or Master's student in the penultimate year of their degree (graduating December 2029 through August 2030 for Summer 2028). Any major accepted, though Finance, Economics, Mathematics, and Engineering are most common.

• Academic threshold: the effective GPA minimum is 3.7 or above for target school candidates. EMEA applicants need a minimum 2:1 degree classification. Computer Science is specifically noted as preferred for technology-adjacent roles.

• Target school focus: 75 to 80% of hires come from Ivy League institutions, MIT, Stanford, and UChicago. Semi-target candidates are considered but face significantly higher bars and need exceptional differentiation through prior IB experience, unique deal exposure, or strong referrals.

• Prior experience: 70 to 80% of successful candidates hold prior sophomore-year finance internships in investment banking, private equity, or corporate development.

• Work authorization: F-1 visa holders eligible via CPT and OPT pathways. Post-Mizuho acquisition, sponsorship capacity expanded with approximately 50 H-1B approvals in FY2025 across the broader platform, though success is lottery-dependent at a 30 to 40% rate.

How Did the Mizuho Acquisition Change the Application Process?

All applications now go through Mizuho's Workday portal, not a separate Greenhill site. Greenhill.com no longer hosts a careers page. Job postings use the dual brand Mizuho | Greenhill for the M&A and restructuring tracks. Pre-acquisition, Greenhill was known as one of the few banks that used human-to-human interviews exclusively without HireVue. Post-Mizuho integration, the firm adopted Mizuho's HireVue-based first-round screening process. The Mizuho acquisition also expanded visa sponsorship capacity and added cross-border deal exposure, particularly for US-Japan M&A corridors.

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

Read across six Mizuho | Greenhill intern job descriptions, covering M&A Advisory, Restructuring, ICB, Project Finance, Markets, and MBA Associate tracks, and the pattern is clear. Financial modeling appears in all six, valuation methodologies in five, Excel proficiency in five, and financial statement analysis in five. But the Greenhill advisory tracks add a layer: interviewers present simplified M&A case studies during the Superday, and technical content makes up 50 to 60% of the final round. The post-Mizuho addition of cross-border transaction awareness and cultural sensitivity to deal with Japanese corporate M&A patterns is a differentiator that few candidates prepare for.

How Is Demand for Investment Banking Summer Analysts Moving Right Now?

Build These Skills Before You Apply

And every skill in that chart maps to a remote Externship where you finish a real project before applications open.

How close is the overlap? The Wayfair project is engineering work that yields the build-and-explain evidence Mizuho | Greenhill's technical and M&A case study interviews probe for, and the Beats project ends on the data-analysis and research story a Superday behavioral round wants.

What Is the Greenhill Application and Interview Process Like?

Mizuho | Greenhill's funnel spans approximately 3 to 6 months from application opening to offer:

1. Create a Mizuho Workday account and submit your application. Visit mizuho.wd1.myworkdayjobs.com and search for 'Mizuho | Greenhill' summer internship postings. Upload your resume, cover letter, and academic transcript. Also check Handshake and your university career portal. Apply within the first two weeks of the posting going live.

2. HireVue video interview (20 to 30 minutes). If selected after resume review, complete a pre-recorded video interview with 4 to 6 behavioral and motivational questions within 3 to 5 days of receiving the invitation. Questions include 'Why investment banking?', 'Why Mizuho | Greenhill?', and leadership examples. Approximately 40 to 50% of screened candidates advance. Note: pre-acquisition Greenhill used human-to-human interviews exclusively; the HireVue step was added post-Mizuho integration.

3. First-round live interview (30 minutes each, 1 to 2 interviews). Phone or video call with analysts or associates. Mix of behavioral fit and basic technical questions: 'Walk me through a DCF,' 'How would you value a company?', enterprise value versus equity value, and basic accounting questions.

4. Superday at the New York City office (4 to 6 hours). Four to six back-to-back interviews with VPs, Directors, and Managing Directors across M&A, Restructuring, and ICB groups. Content breakdown: technical questions make up 50 to 60% (DCF mechanics, accretion/dilution, LBO fundamentals, financial statement linkages, simplified M&A case studies), behavioral and cultural fit 30 to 40%, and brainteaser or market awareness questions 10%. The Greenhill advisory track includes deeper M&A-specific questions and simplified case studies.

5. Offer within 24 to 48 hours of Superday. Approximately 25% of Superday participants receive offers. Return offer decisions for the internship itself are communicated in the final week of the program, with a 70 to 85% conversion rate for the M&A and Restructuring tracks.

So the skills to drill are clear: financial modeling fluency for the technical rounds (DCF mechanics, LBO fundamentals, accretion/dilution, and financial statement linkages), a clear answer to 'Why Mizuho | Greenhill specifically?' that addresses the acquisition and what it means for your career, and M&A case study practice for the Superday. Expect questions like 'Company A is acquiring Company B for a given price, walk me through the key considerations.' Prepare three to four STAR stories about resilience under pressure and intellectual curiosity, because the behavioral rounds probe for cultural fit on lean, high-intensity deal teams.

What Students on Reddit Say

Three community threads on Wall Street Oasis show the post-acquisition recruiting landscape from the inside, all paraphrased.

How Do You Stand Out When Only 0.5 to 1% Get In?

Three moves, all before the posting goes live. First, apply in week one: rolling review plus a 0.5 to 1% acceptance rate means timing and referrals beat credentials alone, and 75 to 80% of hires come from core target schools, so non-target candidates need every structural advantage. Second, prepare a specific 'why Mizuho | Greenhill' answer that addresses the acquisition: interviewers want to hear that you understand the boutique-within-a-bank model, the cross-border deal exposure Mizuho adds, and why the Greenhill advisory culture appeals to you specifically. Generic 'why IB' answers do not clear this bar. Third, drill M&A case studies, not just technicals, because the Superday includes simplified transaction analyses where you walk through key considerations for a hypothetical acquisition. 'Company A is buying Company B, what matters?' needs a structured, confident answer. And remember: 70 to 85% of interns on the Greenhill advisory tracks get return offers, so interview like the full-time analyst seat and its $180,000 to $220,000 total compensation are already on the table.

What Other Companies Should You Consider?

Greenhill is not the only advisory-focused bank worth targeting. If you are building an investment banking internship list, these are the obvious neighbors:

Our finance internships summer 2027 guide maps the whole landscape, timeline by timeline.

FAQ

Does Greenhill still exist as an independent company?

No. Greenhill was acquired by Mizuho Financial Group in December 2023 in an all-cash transaction at $15 per share, with an enterprise value of approximately $550 million. It now operates as Mizuho | Greenhill within Mizuho Securities USA. The Greenhill brand is maintained for the M&A advisory and restructuring business, but all hiring, payroll, and operations run through Mizuho.

Do I apply to Greenhill or Mizuho for internships?

You apply through Mizuho's Workday career portal at mizuho.wd1.myworkdayjobs.com. The postings are branded as Mizuho | Greenhill for the M&A and restructuring tracks. Greenhill.com no longer hosts a careers page. Also check Handshake and your university career portal for Mizuho postings.

What is the acceptance rate for the Mizuho | Greenhill summer analyst program?

Approximately 0.5 to 1% among target school candidates. The M&A and Restructuring tracks receive roughly 2,000 to 3,500 applications for approximately 15 to 25 positions. The total intern class across all banking tracks is about 65 students in the Americas.

How much does the Mizuho | Greenhill summer analyst program pay?

Summer analysts earn approximately $1,850 per week, totaling $18,500 to $20,800 for the 10- to 11-week program, plus a $3,000 one-time housing stipend. The M&A and Restructuring tracks may pay at the higher end given Greenhill's elite boutique heritage. Full-time analysts who receive return offers can expect $180,000 to $220,000 in total first-year compensation.

Has the Mizuho acquisition changed exit opportunities for Greenhill analysts?

Early indications suggest exit opportunities remain strong. Historically, 40 to 50% of Greenhill analysts exited to mega-fund and upper-middle-market private equity firms. The Mizuho backing may actually broaden opportunities by adding capital markets and cross-border deal exposure. However, there are industry concerns that the boutique brand prestige may diminish over time under a larger parent.

What is the return offer rate?

70 to 85% for the M&A and Restructuring tracks that carry the Greenhill legacy. Approximately 65 to 70% for the broader Mizuho summer analyst program. Return decisions are typically communicated in the final week of the program based on deal contributions, technical skills, cultural fit, and senior banker feedback.

Do I need Japanese language skills to intern at Mizuho | Greenhill?

No. Japanese language skills are not required for any track. However, they are considered a plus, particularly for cross-border deal teams focused on Japanese corporate M&A. Interest in Asian markets and cross-cultural business environments is valued as a differentiator post-acquisition.

When do applications open for summer 2028?

Based on prior cycles, expect applications to open on the Mizuho Workday portal in August to September 2027 with rolling review. HireVue deadlines are projected around October 2027. Superdays run November 2027 through February 2028. Apply within the first two weeks of the posting going live for priority review.

Mizuho | Greenhill's acceptance rate is 0.5 to 1%, but every seat is won one rolling decision at a time. Spend the runway building proof: a remote Externship turns 'interested in advisory M&A' into a finished project you can point at when applications open.