Guillaume Marion Photo

Guillaume Marion

Partner & COO

Guillaume is Partner & Chief Operating Officer of Diagram Ventures where he is Head of Investments & Venture Advisory, Chair of the Investment Committee, and Acting CFO. Diagram is a venture builder and venture capital fund that operates with Sagard, a global multi-strategy alternative investment platform. Previously, he worked in the United Kingdom in the investment banking division of HSBC in its Financial Institutions Group. Before, Guillaume was based in Germany working with Rocket Internet, the world's largest incubator of technology startups, where he was CFO of a portfolio company. Previously, he worked at PSP Investments in Canada, in its direct private equity group and in its internal hedge fund. He started his career in 2006 at Genuity Capital Markets in mergers and acquisitions.

Guillaume currently sits on the Boards of Directors of the Montreal Economic Institute, the Opéra de Montréal, and the Mount Royal Club. He is a member of the C.D. Howe Institute, the C100, the Banff Forum, and Civitas Canada. He previously founded the Young Directors Program of the Institute for Governance (IGOPP) and co-founded the UK Chapter of the American Enterprise Institute's Enterprise Club. Guillaume holds a BBA from HEC Montreal where he was president of its investment club (FPHEC) and founded the largest Canadian inter-university finance academic competition, the Financial Open (Omnium Financier). He is also a Chartered Financial Analyst (CFA) and a Chartered Alternative Investment Analyst (CAIA), and he holds a Masters in Finance from London Business School where he graduated with an Award for Outstanding Contribution and Leadership.