Philippe Castagnac
1988
Partner at Mazars2006
Group Executive Board Member2011
Group Chairman and CEO2019
Honorary Chairman
Honorary Chairman
Graduate of NEOMA / Rouen Business School, Philippe Castagnac is a chartered accountant and a statutory auditor. He built his entire career at Mazars and serving the profession.
Career at Mazars
Philippe Castagnac has held several leadership roles early within Mazars, including Managing Partner of the Mazars office in Strasbourg from 1988 to 1998, Deputy CEO and then CEO and Chairman of Mazars in France from 2003 until 2012.
At Group level, Philippe became member of the Group Executive Board and co-CEO of the Group in 2006. From 2011 to 2016, he served as CEO as well as Chairman of the Group. In 2017, Philippe was re-elected Chairman of Mazars’ Group Executive Board.
Clients and expertise
Philippe Castagnac has gained vast international experience in audit and advisory, and has served global listed companies in several industries and services.
Institutional Responsibilities
Philippe Castagnac has been actively serving on several institutional regional and national bodies of the profession since 1992. In particular, he chaired the commission in charge of reforming the operational functioning of the profession in France from 2004 to 2005.
In 2017, Philippe was named President of the Financial Markets Department of the French National Body of Statutory Auditors. He had been its Vice-President since January 2015.
Recognition
Knight of the Legion of Honour.
Want to know more?
Pages associated to Philippe Castagnac
Insights
- The EU audit market will evolve in a deep-reaching way - Philippe Castagnac, CEO, Mazars
- Creating shared value
- About shared value
- Reinventing ourselves in the digital era
- The audit manifesto - contributing a vibrant audit profession
- From CSR to Shared Value: How Respecting Human Rights is Actually Sound Business Investment
Who we are
- Mazars speeds up its development and strengthens its presence in Germany
- Zhongshen Zhonghuan and Mazars successfully complete their merger
- Mazars announces a 12.8% revenue increase and accelerates its international expansion
- Mazars is participating in the Women’s Forum and is publishing an international survey on Generation Y
- Mazars is participating to the Women’s Forum and is publishing an international survey focusing on male and female relations.
- Mazars announces annual growth of 15.9% together with a strategic merger in China
- Africa CEO Forum
- The modern firm: discerning, knowledge-intensive, agile, sustainable
- Mazars, partner of the Cité de la Réussite 2017: transmission starts with permission
- Transformation: Forvis Mazars Group publishes its 2016-2017 Annual Report