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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Data & Analytics Intern

Summer 2027Updated on 10/24/2026Deadline 1/15/27
No salary listed
Internship
Newcastle upon Tyne, UK
HybridHybrid; Marsh colleagues are expected in their local office or onsite with clients at least three days per week.
Data & AnalyticsData Science

About the job

Requirements
  • Applicants must be in their penultimate year of study in a quantitative or STEM discipline such as Data Science, Mathematics, Economics, Natural Sciences, Statistics, or Engineering.
  • Applicants must have a data-driven mindset and proficiency with numbers, and be able to explain sophisticated data science concepts understandably to clients and colleagues.
  • Applicants must be aged 18 or over at the start of the internship.
  • Applicants must have excellent command of spoken and written English.
  • Applicants must have the right to work in the UK.
Responsibilities
  • Collaborate with colleagues and clients at all levels to help solve client challenges.
  • Design potential solutions for analytical challenges.
  • Implement prototypes and assess their effectiveness.
  • Engage in discussions with clients and colleagues to share ideas.
Desired Qualifications
  • Programming skills in Python or R are ideal.
  • Interest and experience in financial services and risk management are a plus.

About the company

Marsh & McLennan Companies, which operates under the Marsh brand, is an insurance broker and consulting group serving businesses, governments and institutions worldwide. Its Marsh Risk unit arranges property, casualty, cyber and employee-benefit coverage, while Guy Carpenter places reinsurance for insurers. Mercer advises employers on pay, benefits, retirement and investments, and Oliver Wyman, Lippincott and NERA handle strategy, brand and economic consulting. Brokers earn commissions and fees from placing coverage, and consultants bill client fees or charge fees based on assets or plan members. The company traces its roots to 1871 and is headquartered in New York City.

Company Size

10,001+

Company Stage

N/A

Total Funding

N/A

Headquarters

New York, NY

Founded

1871

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Simplify Jobs

Simplify's Take

What believers are saying

  • Consulting drives growth: Mercer and Oliver Wyman's group grew 8% organically in the June 2026 quarter, versus 3% for broking.
  • Profits cushion jobs: Marsh kept about 27 cents of operating profit per sales dollar in 2025, before one-time costs.
  • Many career paths under one employer: 95,000+ colleagues span broking, reinsurance, benefits and strategy consulting in 130 countries.

What critics are saying

  • Expect cuts: Thrive, announced October 2025, sets aside $500 million, mostly severance and technology, to save $400 million yearly.
  • Pricing works against broking: Marsh's index shows commercial rates fell 6% in the June 2026 quarter, an eighth straight drop.
  • Back-office roles are being consolidated: a Business and Client Services unit is pooling operations and technology teams company-wide.

What makes Marsh & McLennan unique

  • Consulting is a third of the business: Mercer and the Oliver Wyman group earned 36% of 2025 revenue.
  • Investment management sets it apart: Mercer is the world's largest outsourced chief investment office, running portfolios for institutions.
  • Scale sets it apart: 2025 revenue grew 10% to $27.0 billion across broking, reinsurance and consulting.

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