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Managing partner, attorney at law

Grzegorz Leśniewski

Grzegorz Leśniewski

Managing partner, attorney at law

An expert in NewTech and CyberSec, as well as in transaction advisory and arbitration, who has been supporting market leaders in large-scale and highly complex projects for many years. He combines regulatory, technological and business experience in advising companies from the IT, FinTech and CyberSec sectors.

Feel free to contact me.

Languages

English
German

Practice

For over 15 years, he has been advising technology companies, e-commerce businesses and financial institutions on projects related to data, digital regulations, technologies and M&A transactions. He combines legal and operational perspectives, supporting organisations in the secure introduction of new solutions, scaling services and implementing data-driven business models.

He has worked with key market players in Poland and abroad, including Telenor ASA, KGHM, CCC, MODIVO, Nasza Klasa, GlobalLogic, Techland, Bank Ochrony Środowiska, and IBK Polska (Industrial Bank of Korea), implementing large-scale and complex projects. He has led regulatory transformations, restructuring processes, technological implementations and strategic IT contract negotiations — both on the supplier and customer sides. His experience also covers the areas of NewTech, AI, cloud computing and IP licensing.

As President of the ARBI3 Court of Arbitration and a long-standing Data Protection Officer in international organisations, he combines the skills of a new technology expert, regulatory specialist and practitioner responsible for implementing solutions in a real business environment. He is actively involved in the Polish Chamber of Information Technology and Telecommunications, co-creating development directions and standards for the FinTech sector, and has also served as an Expert of the Digital Forum at the Union of Entrepreneurs and Employers.

Co-author of books, commentaries, and dozens of articles in trade press publications within his areas of expertise. Speaker at numerous conferences and events, such as InfoShare, DORA Forum, and CyberSec Forum.

Industries served

Technologies / IT
Software House
Cloud / SaaS
Web and Mobile Applications
IoT
AI / Artificial Intelligence
E-commerce & Digital Services
E-learning
Game dev
E-sport
Marketing & Media
Influencer Marketing
Telecommunications
VR / AR
Sport & Sports clubs
Insurance
Banking & Finance
Non-profit
Professional Services
Industry / Manufacturing
Mining / Extraction
Arbitration (ADR)
Investment Funds
Private Equity / Venture Capital
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