Mereo Insurance

What Mereo Insurance does

Mereo Insurance Limited is a Bermuda-based reinsurance and insurance carrier that launched in February 2025 with more than $500 million in initial capital from a private equity consortium led by Susquehanna Growth Equity, with participation from Ares Management and The Andover Companies. The company holds full approval from the Bermuda Monetary Authority and an A- (Excellent) Financial Strength Rating from AM Best (affirmed March 2026). Mereo's underwriting platform operates across three core classes — Property (Cat XOL, wind, earthquake, wildfire, SCS, flood, parametrics), Casualty (General/Excess Liability, Professional Indemnity, E&O, D&O, Cyber), and Specialty (Marine, Energy, Aviation, Space, Political Risks, A&H, Crop, Contingency) — on both proportional and non-proportional bases, with a stated 70/30 US/International property cat split targeting regions including Europe, Canada, the Caribbean, Japan, Australia and New Zealand.

Mereo accesses business through the quotation systems (QS) of proven carriers and serves three primary counterparty groups: regional, nationwide and global primary carriers seeking catastrophe and large-limit casualty capacity; Lloyd's Syndicates and MGAs; and, via strategic MGA capacity partnerships, downstream specialty markets such as US healthcare professional liability. Distribution is direct and relationship-driven from the Hamilton, Bermuda office, supplemented by renewal rights acquisitions from exiting carriers — exemplified by the June 2026 acquisition of Everen Specialty Ltd.'s excess casualty energy portfolio, with ESL's underwriting team transitioning to Mereo — and by capacity partnerships with specialty MGAs such as Banyan Risk Ltd. for Healthcare Professional Liability. The company operates as a unified insurance and reinsurance platform rather than a technology-driven business.

Mereo is led by a senior team drawn from leading global (re)insurers, including Executive Chairman Brian Duperreault (former CEO of AIG and Marsh & McLennan) and CEO/Chief Underwriting Officer David Croom-Johnson (former CEO of AEGIS London). Revenue is derived entirely from underwriting premiums; no specific pricing tiers, technology platforms, or AI/ML capabilities are disclosed. The company is part of Bermuda's 'Class of 2025' small cohort of new traditional reinsurance entrants.

Name

Mereo Insurance

Legal name

Mereo Insurance Limited

Website

https://mereoinsurance.com

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

11–50 employees

Short description

Mereo Insurance Limited is a Bermuda-based reinsurance carrier launched in February 2025 with over $500 million in initial capital, underwriting Property, Casualty, and Specialty classes for primary insurers, Lloyd's syndicates, MGAs, and global carriers.

Ownership category

akta.pro rank

Headquarters

HQ city

Hamilton

HQ country

Bermuda

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Reinsurance and Insurance Premiums: Mereo generates revenue through underwriting reinsurance and insurance policies across Casualty, Specialty, and Property classes. The company operates on both proportional and non-proportional basis, earning premium income from risk transfer arrangements with primary insurers and reinsurers.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Mereo Insurance is a Bermuda-based property and casualty reinsurance carrier that underwrites Property (Cat XOL, wind, earthquake, wildfire, flood, parametrics), Casualty (General/Excess Liability, Professional Indemnity, E&O, D&O, Cyber), and Specialty (Marine, Energy, Aviation, Space, Political Risks, A&H, Crop, Contingency) classes. The company provides both proportional and non-proportional reinsurance capacity to regional, nationwide, and global carriers, accessed via the quotation systems of proven carriers, and also partners with specialty MGAs.

Product overview

Mereo Insurance is an A- rated (AM Best) Bermuda-based insurance and reinsurance carrier that operates as a single unified platform offering three core product lines: Property, Casualty, and Specialty insurance. The platform underwrites on both proportional and non-proportional bases and participates in reinsurance markets through its Hamilton, Bermuda office. The Property line covers catastrophe risks including wind, earthquake, wildfire, and flood; the Casualty line encompasses general/excess liability, professional indemnity, E&O, D&O, and cyber; and the Specialty line includes marine, energy, aviation, space, political risks, A&H, crop, and contingency coverage. Recent expansions include an Excess Energy Casualty portfolio acquired from Everen Specialty Ltd. and a Healthcare Professional Liability capacity partnership with Banyan Risk. The company was co-founded by Brian Duperreault (former AIG and Marsh & McLennan CEO) and is led by CEO David Croom-Johnson, having launched in February 2025 with over $500 million in initial capital.

Differentiator

Problem solved

Functional benefit

Products and services

• Property Insurance Property catastrophe excess of loss (Cat XOL) coverage for regional, nationwide and global carriers, covering wind, earthquake, wildfire, severe convective storm, flood, PV, terror, nuclear, industry loss warranties and parametrics with a 70% US and 30% international catastrophe split.
• Casualty Insurance Broad-based casualty coverage including General and Excess Liability, Professional Indemnity, E&O, D&O and Cyber, accessed through the quotation systems of proven carriers with strong track records.
• Specialty Insurance Specialty classes including Marine, Energy, Aviation, Space, Political Risks, A&H, Crop and Contingency offered on both proportional and non-proportional bases, targeting global carriers, P&Cs, Lloyd's syndicates and MGAs.
• Excess Energy Casualty Portfolio Excess Casualty Energy policies underwritten by Mereo as carrier of record following acquisition of renewal rights from Everen Specialty Ltd., providing continuity of coverage for existing energy-sector policyholders.
• Healthcare Professional Liability Capacity Strategic reinsurance capacity for Healthcare Professional Liability coverage of complex US healthcare professional liability risks including hospitals and allied health, provided in partnership with Bermuda-based MGA Banyan Risk Ltd.

Quantifiable outcome

• AM Best A- (Excellent) Financial Strength Rating and 'a-' Long-Term Issuer Credit Rating
• +1 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered core and minor.

• Banyan Risk LtdcoreStrategic or Co-development Partner · 12 June 2026Banyan Risk Ltd, a Bermuda-based specialty Managing General Agent, launched a Healthcare Professional Liability product focused on complex US healthcare professional liability risks, including hospitals and allied health, with strategic capacity from Mereo Insurance Limited. Kim Morgan joins Banyan Risk as Lead Underwriter, Healthcare, bringing experience from Sompo International. The launch represents a strategic opportunity for Mereo to participate in the US Hospital Excess Professional Liability market.
• Everen Specialty LtdcoreStrategic or Co-development Partner · 1 June 2026Mereo Insurance acquired Everen Specialty Ltd.'s excess casualty energy portfolio renewal rights in a transaction effective June 1, 2026. ESL's underwriting team led by former Chief Underwriting Officer Carla Greaves transitioned to Mereo, providing continuity of coverage for existing policyholders. Mereo became the insurance carrier for both new and renewed business, supporting its vision to build a leading global insurance and reinsurance platform.
• Cedar TracecoreStrategic or Co-development Partner · 1 June 2026Cedar Trace is described as the insurance and reinsurance group aligned with Mereo in the Everen Specialty renewal rights transaction. ESL's underwriting team and supporting systems transitioned to Cedar Trace as part of the transaction structure, providing continuity for existing policyholders.
• Association of Bermuda Insurers and Reinsurers (ABIR)minorOthers · 1 February 2025Mereo Insurance joined the Association of Bermuda Insurers and Reinsurers (ABIR) as a new member, formalizing its entry into Bermuda's reinsurance market. ABIR is the primary industry association representing Bermuda-based insurers and reinsurers.

Scale indicators5 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Oak Reinsurance: Oak Reinsurance is a Bermuda-based reinsurance startup also part of the 'Class of 2025', targeting similar Property, Casualty, and Specialty classes with comparable capital base. Direct peer given identical launch timing, jurisdiction, and product mix.
• Convex Group: Convex is a Bermuda-based specialty re/insurer offering Property, Casualty, and Specialty lines to global clients. Comparable as a younger Bermuda specialty re/insurer with multi-class platform serving similar cedent base.
• Fidelis Insurance: Fidelis is a Bermuda-headquartered specialty (re)insurer underwriting Property, Casualty, and Specialty lines globally. Richard Holden (Mereo's Deputy CUO) previously led Fidelis's reinsurance and capital management business, signaling direct comparability.
• Hamilton Insurance Group: Hamilton is a Bermuda-based specialty re/insurer with Property, Casualty, and Specialty offerings. Brian Duperreault chaired Hamilton, and several Mereo executives (Croom-Johnson, Reiss) share Hamilton pedigree, making it a tight direct peer.
• IQUW: IQUW is a Bermuda-based specialty re/insurer offering Property Cat, Marine, Energy, Aviation, and Specialty lines. Multiple Mereo leaders (Strong, Waisman) previously held senior roles at IQUW, signaling operational and product overlap.
• Ariel Re: Ariel Re is a Bermuda-based specialty reinsurer underwriting Property Cat and Specialty lines for global cedents. Federico Waisman (Mereo's Chief Analytics and Risk Officer) previously led Analytics at Ariel Re, indicating direct comparability.

Emerging players

• Alpine Re: Alpine Re is a Bermuda-based reinsurance startup named alongside Mereo and Oak Re as a Class-of-2025 entrant. Comparable as an emerging peer deploying fresh capital into similar reinsurance classes, though with partial product overlap.

Broad incumbents

• Aspen Insurance Holdings: Aspen is a larger specialty (re)insurer with broad Property, Casualty, and Specialty lines including marine and energy. Comparable as an incumbent in the same Bermuda specialty/reinsurance space, but with a much larger and more diversified portfolio.
• Everest Group: Everest is a global reinsurance and insurance group with significant Property Cat, Casualty, and Specialty offerings and a major Bermuda presence. Comparable as a broad incumbent underwriting overlapping classes, but at materially larger scale.
• Beazley: Beazley is a global specialty insurer with strong Casualty, Cyber, Marine, and Political Risk lines, often writing through Lloyd's. Comparable as an incumbent across multiple Specialty and Casualty classes Mereo targets, though without a Property Cat focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mereo-advisors

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds1 record

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mereo Insurance