Castel appoints Carlos as Head of Specialty

16 January 2020

  • 16 January 2020 – Castel Underwriting Agencies Limited (Castel), the club-style MGA formation platform, has today announced the appointment of Raoul Carlos as Head of Specialty as it structures its underwriting cells and MGAs into a number of centres of excellence focused on core classes of business. 


    Carlos will head up the Specialty Centre of Excellence and be responsible for the strategy and execution of underwriting performance and portfolio management for seven classes of business. Other centres of excellence will include Construction and Engineering and Warranty and Indemnity. 


    He joins Castel from Arch Insurance International where he was Head of Onshore Energy with oversight of the development and delivery of global downstream, midstream, power and renewables classes of business. Previously, he spent five years with Swiss Re Corporate Solutions, in both London and Zurich, underwriting mining and onshore energy risks, with a developmental focus on the Middle East and North Africa region. 


    Mark Birrell, Chief Executive of Castel, said: “Castel has built a strong track record and proven model supporting entrepreneurial underwriters. To support the next phase of our growth we have initially established three centres of excellence and are strengthening the management team to maximise their strategic and operational impact. Raoul brings us significant expertise in managing and delivering strong-performing portfolios of specialty lines business.” 


    Carlos commented: “The centres of excellence strategy will enable Castel to optimise the performance of its existing classes for the underwriters and our carrier partners. We will also continue to identify new opportunities for entrepreneurial underwriters with robust business plans to expand our portfolio.” 


    For further information, please contact: 

    Full Circle Communications 
    Alex Wise 

    Mobile +44 (0) 7710 665615 
    Tel:  +44 (0)20 7265 7887  


    Notes to editors 

    Castel Underwriting Agencies Limited, part of Arch Capital Group Ltd., is an independent trading company and managing general agent (MGA) and club-style MGA formation platform focused on achieving success and driving innovation through collaboration. It provides experienced and entrepreneurial underwriters with stable capacity and a fast-track route to creating their own businesses. Castel is authorised and regulated by the Financial Conduct Authority. Learn more about Castel at

    Castel’s underwriting cells include: 

    • Centre of Excellence which supports talented and entrepreneurial individual underwriters who have smaller books of niche business including bloodstock risks, political risk, marine and global property facultative reinsurance. 

    • Construction and Engineering Centre of Excellence which supports construction and Inherent defect insurance. 

    • Warranty and Indemnity Centre of Excellence which supports Western European M&A transactions and tax risk insurance for liabilities in Europe. 

    • Medical & Commercial International (MCI) which underwrites general medical and pharmaceutical liability business on an international basis. 

    • Nirvana Risk Partners which underwrites media, technology and cyber liability risks for small and large enterprises on a global basis. 

    • Vecta Risk Partners which underwrites specialist group and individual accident & health, travel and lifestyle coverages distributed through brokers and affinity e-trading platforms. 

    • Verve Risk Partners which underwrites U.S. professional and management liability risks, focusing on insurance companies and captives as well as insurance agents and brokers. 

    • Yachtpod Risk Partners which underwrites specialist coverages including hull and machinery, increased value, war, medical expenses, mortgagee’s interest and loss of charter hire risks for superyacht owners, captains, and managers on a worldwide basis. 

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