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Olivier Haas has extensive experience in the fields of cybersecurity, technology, and intellectual property. His practice is focused on IT, internet, e-commerce, and data protection. For more than 15 years he has advised French and international businesses — from start-ups to major international groups of companies — in connection with the preparation, negotiation, and implementation of their technology and digital content-related projects.

Olivier advises French and international businesses on their IT, cloud computing agreements, and web-related projects, as well as on outsourcing projects, data governance strategies, and cybersecurity issues. He is regularly involved in the negotiation of IT and business process outsourcing deals, IT and data migration projects towards cloud-based environments, and in setting up shared services platforms. Olivier also advises on all issues relating to data protection.

Olivier has a strong scientific background. He holds two engineering degrees and worked for aerospace companies before becoming a lawyer. He also practiced at several international law firms prior to joining Jones Day.

Olivier is a member of the Cyberlex Association and is regularly involved in the conferences of the ITechLaw and IAPP (International Association of Privacy Professionals) Associations.


  • Solmax acquires TenCate GeosyntheticsJones Day is advising Groupe Solmax Inc., the global leader in the production of high-quality polyethylene geomembranes for industrial and environmental applications, and its shareholders (including institutional investors Caisse de dépot et placement du Québec (CDPQ) and Fonds de Solidarité FTQ (FSTQ)), in connection with Solmax’s acquisition of TenCate Geosynthetics Holding B.V. (TCGS), a global provider of geosynthetics and industrial fabrics, from Dutch conglomerate Koninklijke Ten Cate (Royal Ten Cate, the Netherlands).
  • Solvay sold Process Materials business to Composites OneJones Day advised Solvay S.A., a publicly listed chemical company based in Brussels, Belgium, in the sale of its Process Materials business, to Composites One, the leading North American supplier of composites materials and value added services.
  • 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.
  • Nanobiotix completes $113.3 million IPO on NasdaqJones Day represented Nanobiotix S.A., a French clinical-stage nanomedicine company pioneering new approaches to the treatment of cancer, in connection with its $113.3 million initial public offering in the United States and listing on Nasdaq.
  • Framatome to acquire Rolls-Royce Civil Nuclear Instrumentation and Control business in France and ChinaJones Day is advising Framatome, an international leader in nuclear energy recognized for its innovative solutions and value added technologies for the global nuclear fleet, in its acquisition of the Rolls-Royce Civil Nuclear Instrumentation and Control business in France and China.
  • Ace Management participates in €20 million Series C financing round of EclecticIQJones Day advised Ace Management in connection with its lead participation in the €20 million Series C financing of EclecticIQ, a global threat intelligence, hunting and response technology provider.
  • Easyrecrue sold to iCIMS, Inc.Jones Day represented management and shareholders of Easyrecrue in connection with the sale of the company, a European leader in video interviewing and digital assessment capabilities, to iCIMS, Inc.
  • Bpifrance Investissement forms Bpifrance Entreprises 1Jones Day represented Bpifrance Investissement in connection with the formation of the fund "Bpifrance Entreprises 1," the first investment fund to be subscribed by the public, managed by Bpifrance, and launched on the initiative of the French Minister of Economy.
  • SUEZ to sell its SUEZ Recycling & Recovery operations to PreZeroJones Day advised the French listed company SUEZ SA in its contemplated largest sale of SUEZ Recycling & Recovery operations - excluding plastic recycling and hazardous waste treatment activities - in four continental Europe countries: the Netherlands, Luxembourg, Germany, and Poland to PreZero, the environmental division of Schwarz Group, as part of exclusive negotiations.
  • European multinational food products corporation seeks advice on developing medical deviceJones Day advised a European multinational food products corporation on the legal aspects of developing a medical device, which includes regulatory, IP, and IT law and data protection issues.
  • French medical device company seeks advice on data protection matters and regulatory issuesJones Day advised a French medical device company on data protection matters and regulatory issues.
  • International beauty company seeks advice on digital transformation policies and implementation of blockchain projectJones Day advised an international beauty company on digital transformation including data retention policies and the implementation of a blockchain project.
  • Leading financial advisory and asset management firm seeks advice on internal compliance program including GDPR readinessJones Day advised a leading financial advisory and asset management firm on an internal compliance program including GDPR readiness.
  • Autonomous convenience store company seeks advice on IT and data protection issuesJones Day advised an autonomous convenience store company that develops automated proximity stores in relation to the data protection constraints (including GDPR) and impact on the roll-out of their AI-based cashierless technology.
  • ETS Global acquires PippletJones Day represented ETS Global in connection with its acquisition of Pipplet, a start-up company specializing in language assessment for companies.
  • Société Générale sold SKB Banka (Slovenia) and its subsidiaries to OTP BankJones Day advised Société Générale in the sale to OTP Bank Nyrt. of its shareholding in the share capital of its subsidiary specializing in retail banking, SKB Banka d.d. Ljubljana (Slovenia), and of its subsidiaries SKB Leasing d.o.o. and SKB Leasing Select d.o.o.
  • Online platform provider prepares for compliance with data protection regulationsJones Day assisted online platform provider dedicated to the processing of massive datasets produced by the interaction of local authorities with the citizens in their jurisdiction, with respect to data protection regulations (including compliance with the GDPR).
  • Société Générale sold Ohridska Banka (Macedonia) to Steiermärkische Bank und Sparkassen AGJones Day advised Société Générale in the sale of majority stake in Ohridska Banka AD Skopje (Republic of North Macedonia) to Steiermärkische Bank und Sparkassen AG.
  • Société Générale sells Societe Generale Serbia and Sogelease Serbia to OTP BankJones Day advised Société Générale in the sale of 100% of the shares in its subsidiary Societe Generale Serbia (SGS) and Sogelease Serbia to OTP Bank Nyrt., including the indirect sale of 100% of the shares in SG Leasing (SGS' wholly owned subsidiary dedicated to leasing activities).
  • Société Générale sells its majority stake in Mobiasbanca Societe Generale (Moldova) to OTP BankJones Day advised Société Générale in the sale of its majority stake in Mobiasbanca Societe Generale (Moldova) to OTP Bank Nyrt, the leading Hungarian bank.
  • Speaking Engagements

    • 30 novembre 2017
      Les rendez-vous de la propriété intellectuelle – 4ème volet : La protection des secrets d'affaires
    • 10 octobre 2017
      Cybersécurité et gouvernance des données : Tendances-clés pour les données personnelles, opérateurs d'importance vitale et cyber-assurance
    • 5 avril 2017
      Le RGPD en détail – Analyse des directives des autorités de protection des données et des efforts de mise en œuvre au niveau national
    • March 15, 2017
      Webinar Series: EU General Data Protection Regulation (three-part series)
    • 14 mars 2017
      Jones Day Paris a organisé sa 4ème journée "Portes ouvertes au métier d’avocat" en accueillant deux classes du Lycée Jean Renoir de Bondy (93)
    • 31 janvier 2017
      Protection des données personnelles – Comment se mettre en conformité avec le Règlement Général sur la Protection des Données ?
    • 5 juillet 2016
      Explosion des cybermenaces : comment les entreprises peuvent et doivent-elles se protéger ?
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