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)