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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Business Interruption Forensic Accountant

Full-TimeUpdated on 10/24/2026
No salary listed
Mid
London, UK
HybridHybrid; colleagues are expected to work in the local office or onsite with clients at least three days per week.
InsuranceClaims Adjudication

About the job

Requirements
  • A professional accounting or loss-adjusting qualification, such as ACA, ACCA, CIMA, CILA, or equivalent, with substantial claims experience, including Business Interruption.
  • Proven experience working in the insurance sector in a claims, forensic accounting, or advisory environment.
  • A proactive, collaborative, and dedicated approach to managing workload and priorities.
  • Excellent communication skills, with the ability to explain complex insurance issues clearly and succinctly.
Responsibilities
  • Advise clients in the immediate aftermath of catastrophic losses, delivering practical guidance and client service in fast-moving situations.
  • Lead and support the quantification and presentation of significant and complex insurance claims and related financial projects across a range of industry sectors.
  • Negotiate with insurers and Loss Adjusters to help resolve coverage issues and achieve fair and agreeable settlements for clients.
  • Undertake pre-loss Business Interruption and cyber reviews to stress-test policy cover, model worst-case loss scenarios, identify potential exposures, and assist clients in ensuring their cover is adequate and responds as expected.
  • Mentor junior colleagues and promote a collaborative and positive working environment for the wider team.
Desired Qualifications
  • Working knowledge of Business Interruption coverage options and policy wording, with experience in both pre-loss and post-loss across a wide range of industries.
  • A strong willingness to learn, contribute, and build a successful career in the insurance industry.

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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