The GTT (Gaztransport & Technigaz) Executive Committee is composed of :

 Chairman of the board & CEO 

Philippe Berterottière joined GTT in 2009. He has more than 35 years of experience in advanced technology sectors. Previously, he served in various senior positions with aerospace companies. At Airbus, he was a contract negotiator, before being appointed head of business development. He was sales director at Matra’s defence division and held various sales and marketing responsibilities at Arianespace, before becoming Sales and Marketing Director and an Executive Committee member. He is a graduate of the HEC business school (Hautes Etudes Commerciales) and of the IEP (Institut d’Etudes Politiques).

Chief Financial Officer 

Virginie Aubagnac has been appointed Chief Financial Officer in July 2021. A graduate of HEC and with nearly 20 years of experience in finance, she joined GTT in April 2021 as Special Advisor to the Chairman. She began her career in the Finance Department of Rallye, then became a project manager for the Deputy Chief Executive Officer of the same company. She then joined the Casino Group’s Strategic Planning Department. In 2008, she took part in the foundation of GreenYellow, a company specialising in energy transition B2B solutions (particularly photovoltaics and energy efficiency), where she served as General Counsel and Chief Financial Officer, then as Chief Executive Officer in charge of finance from 2017 to 2020.

Innovation vice President

Jean-Baptiste Boutillier, Director of Innovation, joined GTT in January 2021. He has 17 years of experience in the world of maritime transportation and shipbuilding. He began his career at CMA CGM as a New Building Engineer, and then supervised the New Building, R&D and Retrofit teams as well as the IT department of the CMA ships subsidiary. He actively participated in the construction and delivery of more than 130 containers vessels from 1,700 TEUs to 23,000 TEUs, and in particular in the design, building and delivery of the Dual Fuel vessels using GTT technology for LNG tanks. He holds an engineering degree from École Polytechnique (X98) and ENSTA (2003 graduation), as well as an EMBA in 2012 (Euromed – Kedge Marseille).


Technical Vice President

Karim Chapot joined GTT as an engineer in 1999 and has worked in the maritime transportation industry for 22 years. In 2002, he became head of structural calculations and was then promoted to Development Director in 2007. Previously, he held various positions at the Cherbourg and Le Havre shipyards. He graduated in naval and offshore architecture from ENSTA Bretagne (École Nationale Supérieure de Techniques Avancées Bretagne) and completed the Executive MBA program at HEC (Hautes Études   Commerciales).

Commercial Vice President

David Colson joined GTT in 2004 and has nearly 30 years of experience, gained primarily in the automotive industry and then with GTT. During his career with GTT, he was a shipyard project manager until 2008 and head of the business development department until 2010, when he was appointed Commercial Director. Previously, he held several positions at APV, ACOME and Valeo Filtration Systems. He graduated in mechanical engineering and business administration from the University of Birmingham (Bachelor of   Engineering and Bachelor of Commerce).
Secretary General

Lelia Ghilini joined GTT in 2014 as General Counsel, after a two-year experience at the Ministry of Economy and Finance as special advisor (European Affairs). Admitted to the bars of Paris and New York, she had previously worked for nearly 10 years as a lawyer in mergers and acquisitions at several prestigious international law firms. Lelia holds a DESS in business law and a business law master’s degree (DJCE diploma) from the University Paris II (Panthéon – Assas). She also holds an LL.M from the New York University School of Law. In 2019, Lélia Ghilini is appointed Secretary General.

Digital & IT Vice President

Anouar Kiassi, Digital & IT Director, joined GTT in 2018. He has 12 years’ experience in Digitalisation and IT Systems. He previously held various positions in software engineering, and then digital programme management and consulting, before joining the ROUSSELET group where he performed various duties including the digital transformation of the business, project management, and department management. He holds a Software Engineering degree from Télécom ParisTech (Paris) and a Computer Science degree from École Polytechnique (Palaiseau).

Human Resources Vice President

Sandrine Vibert joined GTT in 2019 as Human Ressources Vice President, with over 23 years experience in the Oil and Gas and Transport Engineering sectors. She began her career in various HR positions within the Group Bouygues: Saur as HR Manager, Bouygues Offshore as Onshore Pipeline HR Manager for Europe and Central Asia and then joined Saipem, where she stayed in Italy,as Recruitment, HR Development and Training Director. Certified Coach and Co-development, Sandrine Vibert creates her change management consulting firm and then joined Systra as the HR Director for technical and project management functions at the Group level. She holds a Master in Business Strategy and Human Ressources Management and a Degree in Economic and Social Sciences, University François Rabelais of Tours.


Consult the Board of Directors and Specialized Committees section.anagement and a Degree in Economic and Social Sciences, University François Rabelais of Tours.