ANSSI's Organisation

As a national authority, ANSSI reports to the General Secretary for Defence and National Security (SGDSN). SGDSN assists the Prime Minister in fulfilling his responsibilities in terms of national defence and security.

Publish the 03 October 2023 Updated 24 January 2024

ANSSI’s Executive Office is composed of a Director General appointed by Decree from the Prime Minister, and a Deputy Director General, both of whom are assisted by a Chief of Staff and a Head of Cabinet.

Vincent Strubel


Vincent Strubel is a graduate from Ecole Polytechnique (class of 2000) and of Telecom ParisTech.

In 2005, he started his career at the DCSSI (Central Network and Information Security Directorate), which later became ANSSI (French National Cybersecurity Agency). He successively held the positions of research lab manager, head of division and head of the Expertise department. In July 2020, he was appointed as head of the newly created OSIIC (Operator of Classified Interdepartmental Information Systems), which was a fusion of one of ANSSI’s department and of the governemental transmission center (CTG). He held this position for two and a half years.

General engineer Vincent STRUBEL was appointed Director General of ANSSI on January 4, 2023.

Emmanuel Naëgelen


General Emmanuel Naëgelen graduated from the École de l’Air in 1991. He also holds a Masters of Advanced Studies in the Economics of Complex Systems from the University of Aix-Marseille and has a qualification from the École de Guerre.

At the beginning of his career, Emmanuel Naëgelen served as an IT security specialist in the French Air Force. He then spent several years in executive positions in cyber security at the French Ministry of the Armed Forces.

In September 2016, Emmanuel Naëgelen became Commander of the École des Pupilles de l’Air, an institution with 700 students. Two years later, he became Head of the Operations Department of the Cyber Defence Command (COMCYBER) of the French Ministry of the Armed Forces.

In 2020, Emmanuel Naëgelen participated in the IHEDN national session on “Digital Sovereignty and Cyber Security”, before joining the French National Cyber Security Agency (ANSSI) as Guillaume Poupard’s industry advisor. He was appointed Deputy Director-General of ANSSI in January 2021.

Jennyfer Chrétien


Jennyfer Chretien holds a Master’s degree in Public and Political Communication from Sciences Po Bordeaux (2009).

She began her career with a generalist French think tank, then spent nearly seven years as a consultant in the public affairs and crisis management sector. Between 2017 and 2022, she headed a French think tank specializing in the digital transformation of society. In this capacity, she authored and co-authored numerous publications and reports. She has also been a member of several public consultation bodies on digital issues, including the Observatoire de la haine en ligne of the Autorité de régulation de la communication audiovisuelle et numérique (Arcom) and the EducNum collective of the Commission nationale de l’informatique et des libertés (CNIL).

She joined ANSSI in March 2023 as Cabinet Director.

Hugues Grout


Hugues Grout holds a degree in Political Science from the University of Paris I and a master’s degree in Public Affairs from the University of Paris-Dauphine. He first worked for two years in the private sector, specialising in the monitoring of public policies related to industry, technology and digital.He joined the ANSSI as chief of staff in July 2021


Julie Chantreux


Julie Chantreux holds a BA in Political Science from the University of Exeter in the UK and an MA in Middle East Economic Policy from the University of King’s College London.

She spent three years working for the French and European diplomatic services, specializing in coordinating French positions in Brussels during the French Presidency of the EU Council.

She joined ANSSI as Chief of Staff in April 2023.


In order to conduct its diverse range of missions, ANSSI is structured into four departments.

Renaud Labelle


Renaud Labelle is a former student of the École Polytechnique and the École Nationale Supérieure des Télécommunications, and is now a General Engineer of the Corps des Mines.

He joined the Ministry of Defence in 1999, where he spent the first part of his career, holding various positions in the fields of telecommunications and security of information systems (particularly in cryptography), such as specialist, team leader, advisor, and programme director.

Renaud Labelle joined ANSSI in February 2018 as Deputy Head of the Expertise Department, and was appointed Head of the Expertise Department in July 2020.

Mathieu Feuillet


A graduate of École Polytechnique, Mathieu Feuillet is an engineer of the Corps des Mines.
Mathieu Feuillet joined ANSSI in 2012, after obtaining his PhD in Applied Mathematics from INRIA.

He was appointed Head of the Technical Assistance Division in 2016, and Deputy Head of Operations in 2018.

Mathieu Feuillet has been Head of Operations since early June 2021.

Gaëtan Poncelin de Raucourt


He is a former graduate from the École Normale Supérieure and a senior civil servant from the Corps des Mines.

Gaëtan Poncelin de Raucourt is deputy director of ANSSI’s strategy sub-directorate since September 2021.
Before joining ANSSI, he was deputy director of control at the AFA (French Anti-Corruption Agency). He previously held expert and managerial positions at the French Ministry of the Economy.

He has been Head of Strategie since november 2023.

Lisa Bokobza


Lisa Bokobza’s professional career has focused on managing resources and public policies with strong territorial implications.

She worked in the Finance Department of the City of Paris, then carried out two assignments in Human Resources: firstly as head of a human resources department, and finally as head of the civil service law office. She also worked on real estate policy for school facilities and social housing.

She joined ANSSI in May 2023 as Head of the Administration Department.