Blenheim is a unified insurance group built to deliver meaningful, high-performance solutions across the global insurance market. Established since 2016 and focused on long-term and profitable growth we have a track record of partnering with proven, entrepreneurial teams.
We bring together two complementary platforms: Blenheim Underwriting – a Lloyd’s Syndicate (5886) delivering expert-led, multi-class underwriting with foresight and precision. Blenheim Partnerships – a dynamic MGA platform, backing entrepreneurial underwriting teams through trusted, strategic collaboration. Together, we deliver insurance and reinsurance solutions that don’t just protect value – they create it.
Chairman & CEO of Blenheim Partnerships Ltd. Director of Blenheim Underwriting Ltd & Group Companies
pscales@blenheim.co
Chairman & CEO of Blenheim Partnerships Ltd. Director of Blenheim Underwriting Ltd & Group Companies
Peter has worked in the Lloyd’s marketplace for over thirty years and co-founded the White Bear Capital Group in 2016. Peter is Chief Executive Officer of Blenheim Partnerships Limited and a Director of Blenheim Underwriting Limited. In 2000 Peter was appointed CEO and one of the founders of Cathedral Capital Limited from start up to the sale to Lancashire Holdings Limited in 2013, remaining as CEO of Cathedral within the Lancashire Group until 2016. Prior to joining Cathedral, Peter had 14 years of Insurance Industry experience including being appointed to Managing Director of Wren Lloyd’s Advisors in 1995, working on establishing the first generation of Lloyd’s Corporate Capital Vehicles. Peter holds a BSC (Econ) in Economics and Geography from University College London.
Director & CEO of Blenheim Underwriting Ltd. Director of Blenheim Partnerships Ltd & Group Companies
jlynch@blenheim.co
Director & CEO of Blenheim Underwriting Ltd. Director of Blenheim Partnerships Ltd & Group Companies
Director of White Bear Capital Limited
John has over thirty years’ experience within the Lloyd’s market and co-founded the White Bear Capital Group in 2016. John is Chief Executive Officer of Blenheim Underwriting Limited and a director of Blenheim Partnerships Limited. John was one of the founders and Chief Financial Officer of Cathedral Underwriting Limited from start up in 2000 to sale to Lancashire Insurance PLC in 2013, remaining as CFO of Cathedral until 2016.
Chief Underwriting Officer - BPL & Senior Underwriter - BUL
jcutts@blenheim.co
Chief Underwriting Officer - BPL & Senior Underwriter - BUL
John joined the White Bear Group in 2018 to establish the Specialty Reinsurance Account for Blenheim and is also Chief Underwriting Officer of White Bear Managers. John has worked for over 30 years in both the Lloyd’s and Company markets, focusing on all classes of reinsurance business as well as supporting and setting up MGA platforms. Before joining White Bear Group in 2018, John was Head of Treaty Underwriting at Talbot Syndicate 1183 where he worked for 19 years. Prior to this he was a Treaty Underwriter at Reliance National UK and from the start an Assistant Underwriter at R. C. Barber Syndicate 512 working across both insurance and reinsurance lines.
Chief Underwriting Officer
ndestro@blenheim.co
Chief Underwriting Officer
Nick joined the White bear Group in 2016 to help establish Syndicate 5886 at Lloyd’s of which he is now Active Underwriter. Prior to this Nick worked for over 35 years in both the Lloyds and Company markets, focusing on primarily US Treaty reinsurance. Before joining White Bear Group in 2016, Nick was the US Treaty Underwriter for Cathedral Syndicate from 2002. Prior to that he was head of the Treaty reinsurance team at SVB Syndicates. He started his career as an underwriting assistant in 1985 at the Excess Ins Co.
Senior Underwriter
santhony@blenheim.co
Senior Underwriter
Simon started his career at MSF Pritchard as an underwriter at the property team. He then joined WRB Underwriting and was promoted to the Head of Property. Simon joined Blenheim in 2020 to assist in the development of the Direct & Facultative Property portfolio and in 2024 he was appointed as Head of Direct & Facultative Property. Simon holds a degree in Politics, Philosophy and Economics from the University of York and has achieved the Advanced Diploma in Insurance.
Head of operations
sjackson@blenheim.co
Head of operations
Sharon joined the White Bear Group in 2019 to head up the Group Operations function. Prior to joining White Bear, Sharon was at Aon for over 30 years where she held a number of key Operational roles, most recently as Head of Operations, Global Re Specialty.
Group Head of Claims
Gwilliams@blenheim.co
Group Head of Claims
Grant began is career at Municipal Mutual Insurance as a claims handler. He joined GAB Robins in 1989 as a loss adjuster leaving in 2000 as Technical Claims Manager to join Catlin Syndicate as Head of Property Claims. In 2004 he joined Cathedral as Head of Claims and left to join Blenheim Syndicate at its inception in December 2016, initially as Head of Claims then as Group Head of Claims with responsibility for claims management of both BUL and BPL. He is a Associate of the Chartered Insurance Institute, A Chartered Insurer and an Associate of Chartered Institute of Arbitrators.
BUL Finance Director
jbailey@blenheim.co
BUL Finance Director
Jay has over 25 years’ experience in the Lloyd’s of London Insurance Market, which commenced in 1997, working across a wide range of general insurance sectors, including the run off market. He has previously worked at Creechurch Underwriting, Cavell Managing Agency, Ascot Underwriting Ltd and Cathedral Underwriting Limited prior to joining Blenheim Underwriting Ltd at its inception in January 2017 as Syndicate Accountant where he set up the Group Finance Function and all the regulatory reporting requirements for the Group and Syndicate 5886. In 2019, he was promoted to Syndicate Financial Controller and in 2026 was promoted to the position of Finance Director of Blenheim Underwriting Limited. Jay is a qualified Accountant with the Association of Chartered Certified Accountants (ACCA) and has achieved Fellowship status (FCCA). He is also a member of various Lloyd’s Market Association (LMA) committees.
Compliance Director
tmijatovic@blenheim.co
Compliance Director
Tessa has worked in the Lloyd’s market in compliance and corporate governance roles for more than 15 years. She joined Blenheim in early 2017 having previously worked at MS Amlin and Cathedral Underwriting. Tessa was appointed the Compliance Director for Blenheim Partnerships 2019-2023 and from 2023 as Head of Compliance and Compliance Director for Blenheim Underwriting Ltd. She holds a LLB and LLM in law from Kings College London and is a certified Data Protection Officer.
Operations
jtaylor@blenheim.co
Operations
Jonathan joined the White Bear Group in 2020. Prior to this, Jonathan was at Aspen insurance for 12 years where he held senior finance and operations roles. Previously he was at QBE and Markel and has worked in the Lloyd’s insurance market for over 20 years. Jonathan is ACII qualified.
Our Group has underwriting teams and managers with extensive experience across all our lines and highly regarded track records. We are recognised as leaders in the markets in which we trade.
The team underwrites via the Group’s two trading platforms and are backed by a wide and diverse panel of capital providers, be they trade, capital market or private.
