Colin Hall has an MBA from the Stanford University Graduate School of Business. He began his career in 1995 as a financial analyst at Morgan Stanley in private equity in New York. In 1997 he joined the Rhône Capital group, a private equity fund, where he held several positions over 10 years, in New York and then in London. In 2009, he co-founded a hedge fund, sponsored by Tiger Management (New York), where he worked until 2011. In 2012, he joined Sienna Capital, a wholly owned subsidiary of GBL grouping together its alternative investments (private equity, debt funds and funds with specific themes) as Managing Director. In 2016, he was appointed GBL Head of Investments.