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Founder of:
- Abilian (2012)
- Nuxeo (2000)
Co-founder of:
- EUCLIDIA, the European Cloud Industrial Alliance (2021)
- APELL, the European Open Source Business Association (2020)
- The PyData Paris / PyParis conference (2014)
- CNLL (2010), the French National Council of Free / Open Source Companies.
- GTLL (2007), the business and innovation cluster for open source in the Paris Region (part of the Systematic Paris Region cluster).
- The Open World Forum / Paris Open Source Summit (2008), yearly conference dedicated to open source and "open everything" in Paris.
- EuroLinux (2000), a federation of European open source associations, that was formed to fight software patents between 2000 and 2005.
- AFUL (1998), the french-speaking Linux and free software users association.
Member of the scientific committee of:
- EPITA (IT engineering school in Paris)
- FDL (Libre Endowment Fund)