Insurance & Reinsurance 2026Updated

List of Reinsurance Brokers Specializing in Catastrophe Risk

Comprehensive directory of reinsurance brokers with dedicated catastrophe risk practices, including property cat treaty specialists, ILS advisors, and cat bond arrangers serving primary insurers and cedents worldwide.

Available Data Fields

Broker Name

Headquarters

Cat Specialties

Global Offices

Cat Modeling Capabilities

ILS / Cat Bond Experience

Lines of Business

Premium Volume Placed

Key Contacts

Phone

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Broker Name	Headquarters	Cat Specialties	Premium Volume Placed
Aon Reinsurance Solutions	New York, USA	Property Cat XoL, Aggregate Stop Loss, ILS	$30B+
Guy Carpenter (Marsh Re)	New York, USA	Cat Treaty, Retrocession, Cat Bonds	$51B+
Gallagher Re	New York, USA	Property Cat, Facultative, ILS Advisory	$9B+
Howden Re	London, UK	Cat Bonds, ILW, Parametric Products	$17B GWP managed
BMS Re	London, UK	Property Cat Treaty, Retrocession, Sidecars	N/A

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Global Catastrophe Reinsurance Broking Landscape

The catastrophe reinsurance broking market is dominated by four global players — Aon Reinsurance Solutions, Guy Carpenter (soon rebranding as Marsh Re), Gallagher Re, and Howden Re — which together command over 85% of placed premium. Below these sit a tier of independent and specialist firms that compete on analytics, market access, and niche expertise.

Market Structure and Concentration

Catastrophe reinsurance is the most broker-intermediated class in the reinsurance market, with approximately 65% of all placements flowing through intermediaries. The top two brokers — Aon and Guy Carpenter — each place over $30 billion in property reinsurance premiums annually. Their scale provides unmatched leverage with reinsurer panels, particularly at January 1 and mid-year renewal dates when the bulk of property catastrophe treaties are placed.

Specialist vs. Full-Service Brokers

Category	Examples	Differentiator
Global Full-Service	Aon, Guy Carpenter, Gallagher Re, Howden Re	Scale, analytics platforms, ILS capabilities
Mid-Market Independent	Lockton Re, BMS Re, Acrisure Re, UIB	Agility, senior-level attention, specialty focus
Niche / Regional	Holborn, Alliant Re	Deep client relationships, US-focused expertise

Key Capabilities to Evaluate

Catastrophe Modeling: Leading brokers maintain in-house cat modeling teams using vendor models (RMS, AIR, CoreLogic) and proprietary views of risk. Aon's Impact Forecasting unit offers 135+ probabilistic models across 90 territories.
ILS and Capital Markets: Brokers with capital markets desks can access alternative capacity through cat bonds, sidecars, and industry loss warranties (ILWs). Howden Re's ILS team has participated in over 50 cat bond transactions.
Retrocession Access: For reinsurers seeking to offload peak cat exposure, broker retrocession desks provide access to ILS funds, collateralized reinsurers, and traditional retrocessionaires.

Recent Market Dynamics

The catastrophe reinsurance market has undergone significant consolidation. TigerRisk merged with Howden Re in 2022, while Capsicum was fully absorbed into Gallagher Re. Guy Carpenter is set to rebrand as Marsh Re by 2027. Meanwhile, independent challengers like Lockton Re have grown rapidly — reporting 29% revenue growth in 2024 — by attracting senior talent from larger incumbents and offering a more entrepreneurial broking model.

Frequently Asked Questions

Q.Does this dataset include retrocession brokers as well as direct reinsurance brokers?

Yes. Many catastrophe reinsurance brokers also operate retrocession desks. The dataset includes both treaty reinsurance brokers and those specializing in retrocession placements for reinsurers seeking to offload peak nat-cat exposure.

Q.How is catastrophe specialty determined for each broker?

Our AI crawls broker websites, regulatory filings, press releases, and industry publications to identify dedicated catastrophe practices, named cat modeling teams, and ILS transaction histories. Only brokers with demonstrable cat-specific capabilities are included.

Q.Are ILS fund managers and cat bond sponsors included?

The dataset focuses on intermediaries — brokers and advisors who place catastrophe risk on behalf of cedents. Pure-play ILS fund managers and reinsurance carriers are not included unless they also operate a broking or advisory arm.

Q.Can I filter by specific peril or geography?

Yes. You can specify perils (hurricane, earthquake, flood, wildfire, convective storm) and geographies (US, Europe, Asia-Pacific, Latin America) to narrow results to brokers with relevant placement track records.

Q.How current is the broker contact and office information?

Contact details and office locations are gathered from public web sources at the time of your request. Since reinsurance broking is a high-turnover industry, we recommend verifying key contacts directly before outreach.