Defence and Security

In a geopolitical context marked by mounting tension and threats, the need to support and preserve economic and industrial capacities in the strategic sectors of security, defence, and sovereign industries such as health and telecommunications, constitute an inescapable objective for States, subject to a duty of increased vigilance.

Jeantet, an independent business law firm based in France, has developed its own expertise team to support these strategic sectors. Its specialist lawyers have in-depth knowledge of the military world and sovereignty issues and are very familiar with the area of economic intelligence and the specific aspects of such cases including special authorisations.

Jeantet supports the major players and leaders of its target sectors – aviation, naval, nuclear, new technologies & digital, energy, telecommunications & cyber, and health – by adopting an approach that’s adapted to the key issues and quality aspects of international groups, subcontractors and high-potential companies, and particularly developers of dual technologies for the civil and military sector.

Jeantet advises its clients through all of their major operations and projects (acquisitions, partnerships and joint ventures, tenders and administrative procedures, business agreements, dispute resolution) in all aspects of business law (corporate law and M&A, intellectual property, competition and tendering, public law and public procurement, financing law, labour law, compliance, and dispute management).

The firm has structured its “Defence and Security” expertise through a cross-disciplinary team that draws on the firm’s key skills. The team coordinated by Xavier Pernot (founder and president of the IHEDN youth association), partner (Dispute resolution – Arbitration – Mediation) and Thomas Picot (IHEDN-SN67 auditor, reserve officer, teacher at the War School), partner (Competition Law and European Law), also counts in its ranks Karl Hepp de Sevelinges, managing partner (Corporate Law and Mergers and Acquisitions), Vincent Netter, partner (Corporate Law and Mergers and Acquisitions), Julia Bombardier, (reserve officer of the French Navy), counsel (Consumer Law) and Adrien Fourmon, counsel (Public Law).

Jeantet is a partner of La Place Stratégique, whose ambition is to offer Young Strategic Companies a system of assistance and support for their development to enable them to maintain most of their strategic value in France.


  • Support of Ocea for the sale of patrol vessels to the Ukranian State Command
  • Support of Airbus Helicopters for the sale of 55 helicopters to the Ukranian State Command
  • Support to a security actor in the sale of facial recognition solutions
  • Advised an investment funds in the context of a takeover of a company with telecommunications interception capabilities
  • Advised of Agence des participations de l’Etat (APE)
  • Counsel to the State Participation Agency (APE) in the restructuring of the capital of Areva TA
  • Counsel to an industrial group within the framework of the acquisition of a company specialized in alarm and remote surveillance systems
  • Advised numerous companies operating in the life sciences sector, for their structuring operations and day-to-day management
  • Implementation of a complete anti-corruption plan for an aeronautical manufacturer



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