Sustainable Investment Report

As Sustainable Investment Director, Hyewon leads Gresham House’s Sustainable Investment team and strategy, driving environmental, social and governance (ESG) efforts across the firm and its investment strategies.

With over 20 years of global experience spanning Asia, Europe and North America, Hyewon has held senior executive roles in corporate and investment management, managing sustainable and impact investment portfolios, as well as developing and implementing sustainability and net zero climate strategies.

Before joining Gresham House, Hyewon was Head of Responsible Investing at the Investment Management Corporation of Ontario (IMCO), where she spearheaded sustainable investment strategies and led ESG integration across public and private markets and all asset classes. Prior to this, she was Assistant Vice President and Head of ESG at AGF Investments, managing approximately $600 million through the firm’s global sustainable and impact investing strategies.

Hyewon has served on various boards and committees throughout her career, including as an Investment Committee member at The Atmospheric Fund (Ontario Government Province Endowment) and as an Environmental Finance Advisory Committee member at the University of Toronto. Currently, she is a member of the Board of Directors at the University of British Columbia (UBC) Investment Management and lectures on environmental finance and sustainable & impact investment courses.

Hyewon founded and chaired the Canadian Responsible Investment Working Group and was named as one of Canada’s Clean 50 leaders in 2020 for fostering collaboration within the financial industry to advance a sustainability agenda.

She holds a Master of Science in Environmental Policy from the University of Oxford and is a CFA charterholder.

James joined Gresham House in May 2024 as Sustainable Investment Manager.

Before joining Gresham House, James worked at Jupiter Asset Management as an ESG analyst within the ESG Research & Integration team where he supported investment managers in embedding ESG into investment processes. His work primarily focused on, climate risk, biodiversity, human rights, and human capital as well as stewardship activities including engagement with investee companies, proxy voting and ensuring good governance. James supported the implementation of new sustainability related regulation and disclosure in addition to policy writing and report writing.

Prior to this, James worked within PwC’s Sustainability & Climate Change team for nearly 3 years on a variety of projects primarily specialising in ESG strategy for large corporates and Private Equity firms as well as corporate security strategy and health & safety. He spent time managing digital transformations and operational excellence productivity improvements for clients globally whilst supporting other areas of the firm on risk assurance and deals.

James holds a BA (Hons) in Anthropology and African Studies from the University of Birmingham, CFA certificate in ESG Investing, Certificate in Sustainable Business Strategy and NEBOSH International General Certificate in Occupational Health & Safety.

Ella joined Gresham House in July 2026 as Climate and Nature Specialist.

Before joining Gresham House, Ella spent 3 years at SLR Consulting as a Climate and Nature Consultant, advising large corporates and financial institutions on integrating sustainability into strategy, disclosure, due diligence, and decision-making. Ella helped lead the development of SLR’s nature advisory services and has specialist expertise in climate and nature risk, strategy, net zero and GHG accounting, including land-based emissions and removals from Forest, Land and Agriculture (FLAG).

Prior to SLR, Ella spent an additional 1.5 years working at ERM CVS as an ESG assurance associate where she focused on sustainability data verification and working directly with global clients to strengthen their non-financial disclosures and data governance.

Ella holds an MA in International Relations from Kings College London and an MA (Hons) in English Literature from the University of Edinburgh