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Olivier de Guerre

Chairman and CEO


Olivier de Guerre began his career in 1981 with the Indosuez Group. He became the co-founder and partner of Finance Indosuez Technique and the Cristal Group, both specialising in asset management. He then went on to become managing director of Credit Suisse Asset Management. He is the chariman-CEO of the Sicav Proxy Active Investors, the first of its kind in France to be dedicated to the initiative, and joint manager of FCP Euro Active Investors. He is also the chairman of PhiTrust Partenaires and PhiTrust Impact Investors. He is a board member of PhiTrust Endowment Fund. He studied at ESSEC and the University of Nanterre.


Denis Branche

Partner & Fund manager


Denis Branche was responsible for international funding at Coface and as part of the ABN AMRO Group. He became a financial analyst at ABN AMRO Group and at Credit Lyonnais Securities Europe.
In 1998, he founded the management company Branics -specialising in SRI investments- later to become PhiTrust of which he is today partner and CEO.
He completed his studies at the Paris Institute of Political Studies and he is a member of the SFAF, the French Society of Financial Analysts.

Simon Mauffrey

Fund manager


Simon Mauffrey has a master degree in probability and statistical research. He also holds a professional master in financial engineering and random models. He began his career as a quantitative analyst at Edmond de Rothschild Asset Management as part of the financial research diversified management team. In 2010, he joined PhiTrust as a quantitative analyst.


Benoît Arthuis

Compliance officer


Benoit Arthuis began his career at CCF in 1987 after studying law at the university of Paris II. For the past nearly 13 years, he has been overseeing operational functions in investment banks (CCF and HSBC) and fixed income trader market makers covering a range of   interest rate products (bond market, private debts). He joined PhiTrust in 2004 as an internal controller (RCCI) and compliance manager.




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