Shareholding structure and governance

Board is a public limited company with a 10-member board which is presided over by Sylvestre Blavet.

Sylvestre Blavet


Graduating with a degree in mechanical engineering from HEI Lille in 1994, Sylvestre Blavet set up two companies between 1994 and 2000, one specialising in wine-making equipment and the other in providing personnel for fish processing. In 2000, he joined Atos as an IT consultant and moved to Dassault Systèmes in 2002, where he took charge of in-house training in 2004.

In 2006, he teamed up with the Billette de Villemeur family in its holding company Groupe CBV Ingénierie and became the company’s chief executive. He turned around its fortunes by ceasing its telecommunications activities and developing its technical assistance services. Then in 2009/2010, he developed its umbrella company services by acquiring SAGE and Ad’missions.

Sylvestre Blavet has been the CEO at since 26 January 2019. He is also the chairman of Groupe CBV Ingénierie, which is the main shareholder in

Yassir Khalid

Lead Director

The holder of a degree from HEC Paris and an executive MBA from Columbia University/London Business School, Yassir Khalid has fourteen years of experience in investment banking, including stints at Leonardo & Co and Crédit Suisse. His various missions have led to him specialising in the telecoms and digital sectors.

These days, Yassir advises and invests in growing companies (raising funds, development)

Thomas de Villemeur


A graduate of ISG, Thomas de Villemeur started out in marketing at Robeco before working for the industrial group Cinetic where he participated in the concentration of handling equipment companies for the automotive industry and airports, mainly in France and Germany. Thomas took over and restructured the Swedish industrial group Interspiro AB (breathing equipment for fire fighters (SCBA) and professional divers (SCUBA), then mainly present in the USA and Northern Europe, which he sold to the Ocenco Group Inc (USA).

Thomas was also active in real estate development and rehabilitation in Europe and the United States.

As Chairman of the Supervisory Board of CBV Ingénierie Group, which he took over in 2008, he is redeploying the historical activity of international technical assistance towards the consolidation of the freelancing and intermediation market between independent contractors, SMEs and large companies.

Mohamed Benboubker


An engineer by training, Mohamed worked in marketing at Procter&Gamble before joining Unilever as financial controller.

In 2000, he set up the Moroccan subsidiary of which specialises in public IT systems, and since 2010 he has developed new recruitment and temporary employment activities with the company.

Isabelle Fourmentin


Isabelle holds a Master’s degree in Business Law and Taxation and is a graduate of the HEC MBA. She began her career as Marketing and Development Manager for the TV channel La 5. After having been Director of Commercial Strategy for the NRJ Group, she joined JCDecaux Airport Paris in 2006, where she is currently Managing Director.

Ludovic Huitorel


A graduate of ESSEC and INSA, Ludovic is currently CEO of Feralco.

Feralco is an industrial group, leader in the production of high performance products for water treatment and industrial processes. We are currently present in 30 countries and have 20 industrial sites. Every day, approximately 150 million people in Europe use water treated with Feralco products.

Ludovic is also a Business Angel and advisor to some thirty European start-ups (including Helvetic Payroll).

Olivier Martin


Having studied management (Groupe ESC Reims-NEOMA) and applied mathematics, Olivier Martin embarked on his career in 1995 in the media world, first at Grap&Gides in Lille, and then at Carat in Paris, where he founded Carat Business in 2002. From 2007 onwards, he spent 5 years at the French online marketing company Webloyalty, working with e-commerce experts and internet users and developing customer loyalty tools for platforms.

In July 2012, he joined AD’Missions as their chief executive, and under his leadership the company’s turnover grew from €45M to €90M until it merged with 

Géraldine Périchon


42 years old, a graduate of HEC, is, since September 2020, Administrative and Financial Director of Getlink where she is in charge of the group’s finances, investor relations, legal, IT, purchasing and CSR. She started at Lazard Frères in 2002 before working for the Boston Consulting Group, Cinven and the AMF. She then joined the Suez group in 2015 as Group M&A Director, before being appointed Senior Vice President Finance & Strategy Italy, Central and Eastern Europe in 2019 and then Finance Director Recycling and Valorisation France in 2020.

Claude Tempé


A graduate of Paris Dauphine, Claude Tempe worked for 20 years in consulting (Ernst & Young, then General Manager of the Alti Group (€120m turnover, over 1,000 consultants) and Director of Utilities, Energy, Media and Telco activities at Tata Consultancy Services) before joining the General Management of in 2015 to restructure the Group.

From 2015 to the end of 2018, Claude turned around and brought it back to growth and profitability with 24 consecutive quarters of double digit growth, all of which were profitable. In particular, he integrated the AD’Missions group’s “portage salarial” activity and built a profitable growth strategy.

Director and Vice-Chairman of the Company since 2019, Claude helps define the strategy, is the Group’s spokesperson to investors and the media and supports the implementation of an ambitious external growth strategy (acquisition of Inop’s in 2020, Helvetic Payroll in 2021).

Laurence Vanhée


Laurence Vanhée trained as a commercial engineer at the HEC business school and has led her career as an international HRD in various sectors of activity, always within organisations undergoing profound change. She has thus been able to immerse herself in the operational and strategic realities of retail, heavy industry, telecoms, real estate consultancy, high tech medical/pharmaceutical and public sectors.

With her innovative approach that uses the lever of happiness at work as a source of sustainable performance, Laurence was elected HRD of the Year in 2012 in Belgium, after having contributed to the high-profile transformation of the Belgian Ministry of Social Security. She was also recognised in 2020 as one of the world’s 50 most influential leaders in Happiness at Work (India).

Since 2013, she has been sharing her expertise through her conferences, her book “Happy HR”, her interventions as a guest professor (MBA Open University – Ho Chi Minh City, Vietnam), or through the Happynomics executive masterclass developed for HEC Liège (Belgium). Her consultancy Happyformance, based in Belgium, has become an international reference in the field of cultural and organisational transformations with positive impacts. Happyformance assists organisations of all sizes and in all sectors that wish to reinvent a sustainable way of Living and Working Together for the benefit of all stakeholders. Laurence is also a member of the HR Committee of Learning Planet (ex-Centre de Recherches Interdisciplinaires, Paris) and a trustee of the Philippe Descarpentries Foundation.


As of 21st April 2023, 56,535,254 shares constituted the company’s share capital. The breakdown of shareholdings is as follows:

Actions  Droits de vote 
Groupe CBV Ingénierie 32 980 014 62,45%
Autres 23 555 240 37,55%
Total 56 535 254 100%


Le nombre actualisé de titres et de droits de vote est disponible en cliquant sur le lien ci-dessous :

Paroi Nord de La Grande Arche – 1, Parvis de La Défense
92044 Paris La Défense cedex FRANCE