Stefane Fermigier is a French tech entrepreneur and open source advocate. He is the founder and CEO of Abilian, a company which develops enterprise information management solutions based on open source software. Previously, he founded Nuxeo in 2000, a company which was sold in 2021 for M$150 .

He has co-founded organisations dedicated to developing the open source ecosystem in France and Europe:

- EUCLIDIA (2021)
- APELL (2020)
- The PyData Paris / PyParis conference (2014)
- CNLL (2010)
- GTLL (2007)
- The Open World Forum conference (2008)
- EuroLinux (2000)
- AFUL (1998)

He's also the founder or a co-founder of several open source projects, including:

- 2016: Olapy (Python-based business analytics)
- 2012: Abilian SBE (Python-based social business platform)
- 2009: Apache Stanbol (content analysis)
- 2009: Apache Chemistry (CMIS implementations in several languages)
- 2007: Nuxeo EP (Java-based ECM platform)
- 2002: Nuxeo CPS (Python based collaboration suite)