About Us

The Radius team has underwritten an array of specialty classes with a combined experience of over 30 years. We pride ourselves on having a uniquely qualified and capable team.


Rob Ashton

Rob has underwritten an array of specialty classes over almost twenty years as an underwriter.  Rob was previously the Head of Specialty at Hiscox Re, part of Lloyd’s Syndicate 33, Hiscox.  Rob is a market leader in cyber excess of loss treaty and a well-respected underwriter of political violence, personal accident, financial lines and nuclear reinsurance, as well as being the driving force behind the development of a portfolio of idiosyncratic treaty business around one-off, specialised classes of reinsurance and niche structures.


Jon Spence
Head of Underwriting

Jon joined Radius in October 2018.  Prior to this, he was a Casualty Treaty Underwriter at XL Catlin. Jon wrote a range of casualty classes including liability, cyber, professional & financial lines and motor across territories including the UK, Canada, Western Europe & Asia. Jon joined Catlin in 2010 as part of the underwriting graduate scheme, eventually specialising in reinsurance and completing his ACII qualification in 2012. He has a degree in Natural Sciences from Churchill College, Cambridge University.

Rachel Madden
Deputy Underwriter

Rachel joined Radius in November 2022. She was previously at Argenta Syndicate within the Property D&F team writing a range of catastrophe exposed business worldwide with a focus in the US. Rachel joined Argenta as the Underwriting Assistant in 2018 and completed her ACII in 2020. She has a Msc in Financial Services and Marketing from Exeter University.

Amelia Goadby
Underwriting Assistant & PA to CEO

Amelia joined Radius in November 2019 as a Personal Assistant to the CEO, having previously worked for an accounting firm. Amelia then received a promotion in September 2022 to Underwriting Assistant in addition to her existing responsibilities. Amelia is currently working towards achieving her Cert CII with the intention of completing the ACII in due course. Amelia has 3 A-Levels in English Language, Sociology & Psychology.