Marta Solarska-Kaleńczuk

Marta Solarska-Kaleńczuk specialises in personal data protection, new technologies, the Internet of Things, online services, and legal advisory for the automotive and IT sectors. She supports clients throughout complex implementation and post-implementation processes, combining a legal perspective with a solid understanding of an organisation's operational and business realities.

She advises on translating regulatory requirements into practical internal procedures, policies, and processes, in particular in the areas of GDPR, employment law, compliance, sales, and distribution. Her experience also includes coordinating the legal handling of over 4,000 litigation cases.

She manages comprehensive legal projects for key clients in the automotive industry, also in a European context. Marta's particular experience covers competition law in the context of distribution and authorisation agreements, as well as ongoing support for entities operating in network-based models.

Since 2015, Marta has supported Hyundai Motor Poland in the area of personal data protection - first as an Information Security Administrator (ABI) and later as a Data Protection Officer.

She also advises IT-sector entities, in particular on implementation and maintenance contracts, hardware projects, and online services.

She regularly conducts legal training embedded in the specific business reality of each client, in particular on personal data protection, consumer law, compliance, and the practical aspects of the work of business and customer service departments.

Marta is an INSEAD Alumna and a member of the Advisory Committee for EMEA at Alliott Global Alliance, an international network of independent law firms and advisory firms.

Blockchain & Crypto Assets 2026: Poland, the Poland chapter of The Legal 500 Country Comparative Guides (Legalease), written entirely by Wołoszański & Partners experts Michał Wołoszański, Łukasz Kudela and Marta Solarska-Kaleńczuk (Exclusive Contributor 2026). It sets out blockchain law in Poland as at 9 October 2026: the CASP licensing gap after the MiCA transitional period ended on 1 July 2026, AML and sanctions, tax and DAC8 reporting, tokenisation, smart contracts and DAOs.

Technology & Outsourcing 2026: Poland, the Poland chapter of the Chambers Global Practice Guides (Chambers and Partners), co-authored by Wołoszański & Partners experts Michał Wołoszański, Łukasz Kudela, Marta Solarska-Kaleńczuk and Kinga Miller. It explains how IT outsourcing contracts are concluded and renegotiated in Poland: DORA, the NIS2 amendment to the National Cybersecurity System Act, the Data Act and the AI Act, contractual penalties and liability, data protection, and the transfer of staff to the supplier.

IEL Guide to Restrictive Covenants 2026: Poland, the Poland chapter of the International Employment Lawyer (IEL) comparative guide to restrictive covenants, published by Portobello Legal Media and co-authored by Wołoszański & Partners experts Karolina Dębiec, Marta Solarska-Kaleńczuk and Kinga Miller. It explains how restrictive covenants work in Poland: validity conditions, compensation, trade secret protection, non-solicitation clauses, enforcement and governing law.

ICLG Competition Litigation 2027: Poland, the Poland chapter of the International Comparative Legal Guide (ICLG) to Competition Litigation, published by Global Legal Group and co-authored by Wołoszański & Partners experts Kinga Miller, Marta Solarska-Kaleńczuk and Michał Wołoszański. It explains how damages for competition law infringements are claimed in Poland: who can bring a claim, time limits, evidence, quantification of loss, costs and funding, and the interplay with the leniency programme.

Customer data protection and the impact on digital money and crypto: the 5th AML directive, published in The Paypers - a Netherlands-based leading independent source of news and analysis products for the global fintech, payments, and e-commerce industry.

Logistics Legal Overview Poland, published in CEE Legal Matters Magazine (Issue 10.9) - an independent legal publication covering the legal markets of Central and Eastern Europe. The article examines the drafting of logistics contracts under Polish law, which provides no single statutory template for them, and the impact of the EU Mobility Package on the regulatory environment of the transport and logistics sector.

Blockchain & Crypto-Assets 2026, the Poland chapter of the international Chambers and Partners legal guide, co-authored by experts from Wołoszański & Partners. It outlines the legal framework for crypto-assets in Poland, including the implementation of the EU MiCA Regulation, anti-money laundering (AML), token issuance and trading, and their taxation.

Competition 2024: Poland, the Poland chapter of the CEE Legal Matters "Competition 2024" comparative legal guide, outlining the Polish competition-law framework - restrictive practices, merger control and proceedings before the competition authority (UOKiK).