Fathom
Corporate brand
UnclaimedFathom is a Bristol-based flood risk intelligence company providing global flood mapping, catastrophe models and climate risk data to insurers, corporates and governments.
Last updated September 26, 2026
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Overview
Fathom is a United Kingdom-based flood risk intelligence company headquartered in Bristol. It was formed in 2013 by researchers at the University of Bristol, originally under the name SSBN, with the aim of creating a data-driven, research-led business that would transform the management and mitigation of global water risk. The company provides flood hazard data, maps, catastrophe models and global terrain data, and its products are used across insurance, engineering, financial markets, corporate risk management, international development and the public sector. Fathom's product stack includes catastrophe models, flood hazard data and maps, and global terrain data. Its flood risk intelligence is designed to support clients in understanding the impact of climate change on flood risk both now and in the future, and its solutions are described as well established within the industry and setting a new benchmark in global flood mapping. The company serves a wide range of sectors, including insurance, where clients can rapidly analyze and price exposures across the world simultaneously; engineering, for exposure assessment and adaptation and resilience strategies; financial markets, with flood risk information available for any climate scenario or regulatory framework up to 2100; corporate clients, for supply chain and network exposure mapping, portfolio management and site selection, regulatory compliance and ESG disclosures, and insurance optimization; international development; and the public sector. As of December 2023, Fathom is part of Swiss Re, one of the world's leading providers of reinsurance, insurance and other forms of insurance-based risk transfer. Swiss Re is headquartered in Zurich, Switzerland, and was founded in 1863. Fathom continues to emphasize academic research and transparency, publishing research papers and maintaining a commitment to providing market-leading flood models based on the latest science. The company works with everyone from small organizations to government agencies to multinational corporations.
History
Fathom's origins trace back to 2012, when a pair of researchers at the University of Bristol began discussing the significant obstacles that needed to be overcome in order to create truly comprehensive flood models that would transform the management and mitigation of global water risk for data-rich and data-scarce regions alike. They examined the potential interconnectivity between cutting-edge research methods across hydrology, hydraulics, remote sensing and more. In 2013, Fathom (then called SSBN) was formed. From the beginning, the aim was to create a data-driven, research-led company, providing transparent world-leading methods of understanding water risk. The company has been providing high quality flood risk intelligence across a wide range of sectors since 2013. Its product stack includes catastrophe models, flood hazard data and maps, and global terrain data. Fathom's solutions are well established within the industry and set a new benchmark in global flood mapping. The company serves sectors including insurance, engineering, financial markets, corporate, international development and public sector. Academic research remains important to Fathom, and it publishes research papers, with academic scrutiny of its products giving clients reassurance that they are consuming trusted and transparent data from the forefront of science. As of December 2023, Fathom is part of Swiss Re. The Swiss Re Group is one of the world's leading providers of reinsurance, insurance and other forms of insurance-based risk transfer, working to make the world more resilient. It anticipates and manages risk – from natural catastrophes to climate change, from aging populations to cybercrime. The Swiss Re Group is headquartered in Zurich, Switzerland, where it was founded in 1863, and operates through a network of around 80 offices globally. Fathom continues to operate as a flood risk intelligence provider under the Swiss Re umbrella, working with everyone from small organizations to government agencies to multinational corporations.
- 2023
As of December 2023, Fathom becomes part of Swiss Re.
- 2013
Fathom (then called SSBN) is formed.
- 2012
Two University of Bristol researchers begin discussing obstacles to comprehensive flood models.
Products and positioning
Data-driven, research-led provider of transparent, world-leading flood risk intelligence and global flood mapping.
Catastrophe models
Catastrophe modeling product for flood risk.
Flood hazard data & maps
Flood maps providing global flood hazard data.
Global Terrain Data
Terrain data product supporting flood modeling.
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