28 rue racine
75006 Paris
Display phone number 01 43 37 30 30
Constantin Pavléas
Sophie Delcroix
Anastasie Kerluen


The firm was created in 2001 by Constantin Pavleas, a former associate at Skadden Arps, Paris, and in-house counsel with Gemplus (a.k.a. Gemalto) and Sybase. The firm advises tech companies and other industries on intellectual property (IP) strategy  and valuation, data protection, business negotiations and mergers & acquisitions. 

The firm’s DNA is to be dealmakers, taking a pragmatic, business-oriented approach to clients’ needs and finding creative, legally sound solutions to close deals. The team assists software and hardware companies in the negotiation of inbound and outbound licenses, technology/IP assignment agreements, research and development agreements, SaaS contracts, OEM agreements, software development agreements, outsourcing agreements, public-founded consortia, patent pools, IP monetization programs and strategic alliances. 

Constantin Pavleas Avocats also advises companies on all aspects of data protection. In view of the EU General Data Protection Regulation (GDPR) that is applicable as from May 2018, the firm assists its clients on strategy and regulatory compliance, including auditing, implementing internal data protection policies, conducting data protection impact assessments, and negotiating agreements with data controllers or data processors for GDPR compliance. Constantin Pavleas Avocats is active in providing presentations, webinars and seminars on GDPR.

Constantin and his team advise as IP counsel on merger & acquisition transactions, including IP due diligence, IP representations and warranties, IP indemnities and relevant disclosure schedules. Recently, the firm assisted an important provider of security solutions in the acquisition of a Finnish start-up and the assets of a US company specialized in electronic transaction security, including authentication, digital signature and m-payment technologies. 


  • Innovation, Technology & Intellectual Property practice

    • Information technologies (software, hardware, IoT, AI, big data/open data)
    • Data protection
    • Mergers and Acquisitions (IP/IT aspects)
    • Commercial agreements
    • Copyrights
    • Trademarks
    • Designs
    • Patents
    • Unfair competition 
    • Image rights