Tristan Garnons-Williams

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+44 203 900 9822 direct

Previous Experience

  • Policy Adviser, Association of British Insurers
  • Policy Adviser, HM Treasury
  • Associate, Financial Services Authority

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Tristan Garnons-Williams


Tristan advises financial institutions on regulatory compliance and risk management.


Tristan joined Promontory from the Association of British Insurers, where he served as an adviser on the European Union’s Solvency II prudential standards for insurance companies and was involved in the development of ComFrame, a global standard for the regulation of insurers. He previously spent four years at the Financial Services Authority, where he worked on Solvency II governance, risk management, and reporting requirements; full-scope risk reviews of global investment banks; and developments in market access and trading innovations related to the U.K.’s secondary markets. Tristan’s tenure at the FSA also included a nine-month secondment to HM Treasury, where he was part of a team representing the U.K. in negotiations with the European Commission and other EU member states on the Omnibus II Directive.


  • B.A. Hons., economics, University of Nottingham 

Affiliations, Awards, and Civic Engagements

Representative Engagements

  • Conducted due diligence on a consumer-credit firm on behalf of a private-equity client as part of a cross-border Promontory team that included colleagues in the U.S. and Canada.
  • Advised several consumer-credit clients on their applications for authorization, carrying out in-depth analysis and evaluation of regulatory documents, including business plans.
  • Advised a credit-reference agency on regulatory requirements and expectations as part of a wider enterprise risk management project.
  • Conducted a review and redesign of a mortgage lender’s corporate structure and governance arrangements.
  • Assisted the insurance division of a global financial conglomerate in its preparations for compliance with the U.K.’s senior-insurance-managers regime.

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