Meet the team

An investment team experienced in delivering high-quality, factor-based investment solutions with sustainability.

Garrett Quigley

Managing Partner, Co-Chief Investment Officer

Garrett has over 25 years experience managing quantitative investment strategies. He enjoyed a long career as a senior portfolio manager with Dimensional Funds Advisors, a pioneer and market leader in the field of factor-based investment strategies.

Bernd Hanke

Managing Partner, Co-Chief Investment Officer

Bernd has more than 20 years experience managing quantitative investment strategies on a global basis. Prior to founding GSI, Bernd was an asset manager for GSA Capital in London, focusing on quantitative equity research and portfolio management. Before that, Bernd was head of international quantitative equity research at Goldman Sachs Asset Management in New York.

Andrew Cain

Managing Partner

Andrew has over 25 years of experience in fund management, both in Europe and Asia. His expertise covers global, regional, local equity and fixed income portfolios. Andrew holds a CFA designation and an MBA from the London Business School.

Kate Hudson

Managing Partner, Advisory Services

Kate has over 30 years’ experience in financial services and global asset management, in strategy, distribution and product management across retail, wholesale and institutional channels, globally. Recently Kate has been working with and consulting with charities and independent financial advisor firms on strategy and positioning. Prior to GSI, she was Head of Institutional Business UK and Europe – Listed Infrastructure for Legg Mason Global Asset Management and Director of RARE Infrastructure (UK).

Max Tennant

Partner, Advisory Services

Max has over 30 years’ experience in the financial advisory world and is a regular conference speaker. He talks across UK, Europe and SE Asia on subjects such as socially responsible investing, practice management and how to provide a full delegation service to clients in a modern world.

Greg Brown

Compliance Manager

Greg joined GSI in May 2024 and has over 20 years of financial services experience in both operations and compliance roles across Europe, Asia and the US.  Most recently, Greg was a Senior Compliance Consultant at Northern Trust Asset Management in their Dublin office.  Among his many degrees he has completed the Institute of Banking in Ireland’s MSc (Compliance)  program via University College Dublin and is currently undertaking an MSc  in computer science with a specialty in artificial intelligence.