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Solution

Natural Catastrophe

Strengthen your resilience against natural catastrophes. Our natural catastrophe modeling and risk management specialists quantify, mitigate and transfer nat cat risk more effectively and efficiently.
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Why Willis Natural Catastrophe?

Make more effective and efficient decisions to better protect your people, assets and balance sheet from natural catastrophes. With our global team of natural catastrophe specialists, you can better identify, quantify, mitigate and transfer your current and future nat cat risks. Extreme weather events are becoming more frequent and severe; earthquakes, tsunamis and landslides pose ongoing threats, together driving annual global insured nat cat losses to consistently exceed $100 billion. Safeguard your financial stability by connecting to your one Willis team of natural catastrophe risk consultancy, analytics and modeling, risk engineering and alternative risk transfer specialists.

We can answer your urgent nat cat risk questions:

  • What types of nat cat exposures do your assets and operations face?
  • What’s the likelihood of a nat cat threat impacting your locations?
  • What’s the likely scale of damage and losses from the most likely nat cat threats?
  • What mitigations can reduce site-specific nat cat risks efficiently?
  • What’s the most cost-effective way to insure site-specific nat cat perils?
Our team of specialists is dedicated to aiding you in identifying, quantifying, managing and transferring your natural catastrophe risks.”​
Ester Calavia GarsaballManaging Director – Nat Cat & Risk Financing, Climate Practice

How can you identify natural catastrophe risks?

Strategic natural catastrophe risk consultancy

To help you both identify and quantify the hazards you face, our natural catastrophe risk consultants carry out in-depth risk analysis, hazard and catastrophe modeling, vulnerability assessments, as well as catastrophe engineering loss assessments.

Natural catastrophe and climate analytics

Climate Diagnostic identifies and helps you visualize how changes in acute hazards, such as extreme wind and flood, and chronic stress factors, including sea-level rise and heat stress, could impact your properties.

Global Peril Diagnostic shows your organization’s exposure to natural catastrophe and other perils, generating site-specific hazard scores. It also gives you live event tracking and alerts on the latest natural catastrophe threats.

How can you quantify natural catastrophe risks?

Property Quantified

Property Quantified models potential losses from natural catastrophe perils based on engineering reports, loss history and nat cat loss drivers. You can quantify losses by peril, geography and location and analyze your insurance options, laying the foundations for more informed and efficient risk transfer.

Natural catastrophe forensic accounting and valuations services

Optimize the cost of insuring against nat cat perils with our global team of forensic accountants, appraisers and surveyors. Our Forensic Accounting and Valuations Services help deliver more value from pre-loss insurance valuations to post-loss quantification of damage.

How can you mitigate natural catastrophe risks?

Natural catastrophe strategic risk consultancy

Armed with data-driven insight and cost-benefit analysis tailored to your organization, our nat cat strategic risk consultants reveal and implement more effective and efficient mitigation, risk management and risk transfer options.

Natural catastrophe risk engineering

Our multidisciplinary team carries out natural catastrophe risk engineering loss evaluations for critical sites, conducting rigorous on-site inspections and remote desktop evaluations to produce comprehensive probable maximum loss (PML) assessments.

From planning through to construction and operation, we give you a decision-making framework around nat cat hazard and climate-resilient design for both your existing and future assets.

We can identify the most urgent non-insurance risk mitigation controls, develop business continuity plans, recovery plans and crisis management readiness.

How can you transfer nat cat risks?

Insurance and facultative reinsurance for natural catastrophe

We combine global reach and local knowledge to find the most appropriate placement for your natural catastrophe risks, either as standalone cover for individual perils or as part of a global property program.

We also support more effective and efficient programs by helping to reinsure individual layers of risk through our Facultative Reinsurance and Structured Risk teams.

Innovative natural catastrophe insurance solutions

Get tailor-made risk financing solutions to help close your natural catastrophe protection gaps and offer more efficient ways to deploy capital.

Our Alternative Risk Transfer (ART) and Financing team provide a range of insurance solutions to complement or replace traditional insurance when it may not be wholly suitable.

These include parametric solutions for specific weather or natural catastrophe risks, which offer rapid payouts should an event reach a certain magnitude according to a pre-agreed measurement or formula.

Our scientific approach to natural catastrophe risks

We apply a science-based approach to natural catastrophe model evaluation, data quality and proactively keep you on top of changing nat cat risks with globally-recognized research.

Natural catastrophe research and innovation: Willis Research Network

To help you better understand and manage emerging natural catastrophe, complex and inter-related risks, Willis Research Network (WRN) works with more than 50 partner institutions worldwide, including leading universities, think tanks, national labs and specialized research centers.

WRN connects cutting-edge science with commercial decision-making by applying scientific thinking to understand natural catastrophe risk management, risk modeling and resilience planning.

It also publishes our Natural Catastrophe Review to provide insight into recent natural catastrophes and share expert views on the risks posed by major perils.

More informed insurance decisions with natural catastrophe model evaluation

To help you develop your own view on your risks and make more efficient insurance in light of your vulnerabilities and potential financial losses, we can evaluate your natural catastrophe models.

Enhancing data quality for better natural catastrophe insurance outcomes

Improve the quality of information in your organization’s schedule of values with our data cleansing service. We can enhance the quality of geolocation data and building characteristic codes, clarifying how values are apportioned between buildings, contents and business interruption in support of better insurance outcomes.

Products​

Unique natural catastrophe diagnostic and quantification tools​

Get in touch

To discover a more effective and efficient way to assess, mitigate, or transfer your natural catastrophe risks. Get in touch with our specialists listed below.

Natural Catastrophe contacts

Ester Calavia, Managing Director, Natural Catastrophe & Risk Financing, Climate Practice

Ester Calavia Garsaball

Managing Director, Natural Catastrophe & Risk Financing, Climate Practice

Katherine Latham, Director of Property Analytics

Katherine Latham

Director of Property Analytics

Torolf Hamm, Managing Director, Physical Climate Risk, Climate Practice

Torolf Hamm

Managing Director, Physical Climate Risk
Climate Practice

Featured report​

Natural Catastrophe Review January 2026​

The latest edition of the Willis Natural Catastrophe Review provides insight into recent significant catastrophe events and shares expert views on the risks posed by major perils.​