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With a focus on public law, Pierre Barthélemy advises economic operators, banks, and public authorities on all aspects of French and European procurement contract regulations. His experience includes tendering procedures related to the financing and performance of contracts, such as public work, supply, service contracts, concessions, and PPPs. He also has notable experience in French and European regulations of economic activities, including energy (electricity and gas unbundling, producing, transmission, and storage) and transportation (rail and road).

Pierre's practice also covers French and European CFIUS regulation, export control, and economic activities in countries under EU and U.S. sanctions; public land and properties (including privatization) and urban planning law; and counseling and litigation aspects of French public law.

Before joining Jones Day, Pierre worked for a French law firm.


  • Armor sells stake in ARMOR-IIMAK to AstorgJones Day advised EN5, controlling shareholders of the Armor group, on the management buyout of Armor Iimak group and the simultaneous 40% investment by Astorg Midcap in the Armor Iimak group.
  • STERIS acquires Cantel Medical for $3.6 billionJones Day advised STERIS plc in its acquisition of Cantel Medical Corp, a global provider of infection prevention products and services primarily to endoscopy and dental customers, for $3.6 billion.
  • Koch Equity Development acquires Transaction Network ServicesJones Day advised Koch Equity Development LLC, the acquisition and investment subsidiary of Koch Industries, Inc., in the acquisition of Transaction Network Services, Inc. (TNS) from affiliates of Siris Capital Group, LLC and TNS' other minority equity holders.
  • HealthHero acquires QareJones Day advised HealthHero in its acquisition of Qare, a French platform that provides medical video consultation services, backed by Kamet Ventures.
  • Verizon Media forms partnership with BuzzFeed to acquire HuffPostJones Day advised Verizon Media in its sale of HuffPost to BuzzFeed.
  • Smith & Nephew acquires Extremity Orthopedics business of Integra LifeSciences Holdings Corporation for $240 millionJones Day advised Smith & Nephew plc, the global medical technology company, in its acquisition of the Extremity Orthopedics business of Integra LifeSciences Holdings Corporation (NASDAQ: IART) for $240 million on a cash and debt-free basis.
  • DataBank acquires zColo for $1.4 billionJones Day advised DataBank, a leading provider of enterprise-class colocation, connectivity, and managed services, in connection with the acquisition and financing of zColo, including certain U.S. and European data center assets, from Zayo Group Holdings, Inc. for $1.4 billion.
  • French Gas Association appeals for annulment of energy regulationsJones Day represents the French Gas Association (AFG) before the Conseil d’État, the French administrative supreme court, in petitioning for the annulment of various provisions that determine technical factors of energy sources as outlined in the Multiannual Energy Programme (PPE) that was adopted in a Decree dated April 21, 2020.
  • LORD Corporation acquired by Parker Hannifin for $3.675 billionJones Day advised LORD Corporation in its $3.675 billion acquisition by Parker Hannifin Corporation.
  • Bank refinances two portfolios of solar and wind assetsJones Day acted as lenders' counsel in the refinancing of two portfolios of solar and wind assets operated by a subsidiary.
  • APE obtains French constitutional Supreme Court approval for design of airport privatization planJones Day advised the Agence des Participations de l'Etat ("APE") on constitutional matters regarding the privatization of Aéroports de Paris ("ADP"), the French company managing the biggest airports around Paris (market value: €17 billion).
  • La Française Real Estate Partners acquires seven-story Crystal Park office building located in Neuilly-sur-Seine, FranceJones Day advised La Française Real Estate Partners in its €691 million ($755.9 million) acquisition of the seven-story Crystal Park office building located 62-64 boulevard Victor Hugo, in Neuilly-sur-Seine, France, from listed commercial property investor ICADE.
  • UPL acquires Arysta LifeScience from Platform Specialty Products Corporation for $4.2 billionJones Day advised UPL Limited ("UPL"), a leading global generic agrochemical company based in India, in connection with its subsidiary, UPL Corporation Limited’s, US$4.2 billion acquisition and related $3 billion term financing of Arysta Lifescience Inc. (“Arysta”), a global provider of crop protection solutions, including bio-solutions and seed treatment, from NYSE listed Platform Specialty Products Corporation (“Platform”).
  • Caisse des dépôts et consignations invests in "Fiber to Home" projectJones Day advised the Caisse des dépôts et consignations (Banque des Territoires) in connection with its investment in a "Fiber to Home" public-private partnership project comprising the design, financing, construction, commercialization, operating, and maintenance of very high speed broadband in the territory of the Haute-Garonne under a public concession scheme.
  • ANSYS acquires OPTISJones Day advised ANSYS, Inc., the global leader and innovator of engineering simulation software, on its acquisition of OPTIS, a premier provider of software for scientific simulation of light, human vision, and physics-based visualization.
  • La Banque Postale finances wind farm in FranceJones Day represented the group La Banque Postale in connection with the €20 million (US$24.5 million) project financing of a 20 MW wind farm located in France sponsored by EDF EN France, acting through its subsidiary Société du Parc Eolien du Bois de Belfays.
  • Lam Research acquires Coventor, Inc.Jones Day advised Lam Research Corporation in its acquisition of Coventor, Inc., a leading provider of simulation and modeling solutions for semiconductor process technology, micro-electromechanical systems (MEMS), and the Internet of Things (IoT).
  • Lincoln Electric acquires Air Liquide Welding for €115 million (US$134 million)Jones Day advised Lincoln Electric Holdings, Inc. in the €115 million (US$134 million) acquisition of the Air Liquide Welding subsidiary of Air Liquide, a key player in the manufacturing of welding and cutting technologies.
  • Deutsche Pfandbriefbank provides financing in connection with acquisition of Hôtel de l’Artillerie located in Paris, FranceJones Day represented Deutsche Pfandbriefbank AG in the financing provided to Fondation Nationale des Sciences Politiques in connection with the acquisition of the Hôtel de l’Artillerie, located at Saint-Thomas d’Aquin plaza, VIIe arrondissement in Paris, France.
  • Société Générale refinances pre-financing facility for modernization of waste treatment plantJones Day represented Société Générale in connection with the refinancing of the pre-financing facility for the modernization of a waste treatment plant for Centre de Valorisation Energétique de Labeuvrière, a public authority located in Béthune-Bruay, France.