Our Personnel
Luke Tanzer, Managing Director of RiverStone UK
Luke joined in 1998 as Head of Legacy Business and Ceded Reinsurance, became Head of Workout in 2000 and was appointed to the board in 2003. Luke manages the UK companies and he is responsible for the implementation of their strategies. He has been involved in the resolution of numerous complex and challenging issues with a focus on resolving disputes and negotiating major commutation transactions.
Born in Australia, Luke graduated from James Cook University, North Queensland with a Bachelor Degree in Economics in 1987. Before moving to England in 1990, he worked in Commercial Lending with Barclays Australia in Sydney.
He has over 20 years experience in the insurance industry having worked for Alwen Hough Johnson, a London based Lloyd's broker between 1990 and 1997, where he was an Assistant Director in both the Claims and Placing Divisions. In 1997 Luke joined Sedgwick Re as an Associate Director in their Aviation Division before moving to RiverStone.
Email luke.tanzer@rsml.co.uk
Tel +44 (0)1273 792 533
Lorna Hemsley, Finance Director of RiverStone Holdings Limited
Lorna is responsible for all finance and actuarial related matters for the RiverStone UK companies, including general accounting, reporting, treasury, planning, and taxation. Lorna joined the group in 1998 as Deputy Accountant and was appointed Head of Finance in 2003 and then Finance Director in 2008. Prior to joining RiverStone UK, Lorna spent ten years at an accountancy practice where she qualified as a chartered accountant in 1991 and gained a wide breadth of experience.
Email lorna.hemsley@rsml.co.uk
Tel +44 (0)1273 792212
Mark Bannister, Reinsurance Director of RiverStone Management Limited
Mark is responsible for the reinsurance matters of the RiverStone UK companies and Lloyds Syndicate operations, including technical reinsurance issuance, credit control and commutation activity. Mark joined the group in 1994 after gaining a Bachelors Degree in Public Administration. Initially joining Sphere Drake Underwriting Management in the Technical team Mark has been Manager of the Financial Run-off Unit, and Head of the Workout and Reinsurance Teams before being appointed Reinsurance Director in March 2011. Mark has completed over 500 commutations, established the RiverStone Direct Broking operation and has 17 years of both live and run-off experience.
Email mark.bannister@rsml.co.uk
Tel +44 (0)1273 792335
Tony Tilley, Claims Director of RiverStone Management Limited
Tony is responsible for all claims matters for the RiverStone UK companies and syndicates, including adjusting, litigation and settlements. Tony joined the group in 1991 after graduating from university. Initially joining Sphere Drake Underwriting Management in the Technical Services team, he has held various management positions including Head of Special Projects and Lloyd’s Run Off Manager. He is now the Claims Director for RiverStone Management Limited. Tony was heavily involved in the successful PA spiral litigation between Sphere Drake and Stirling Cooke Brown/EIU. Tony has over 20 years of both live and run-off experience in both the company and Lloyd’s market.
Email tony.tilley@rsml.co.uk
Tel +44 (0)1273 792537