Privacy and new technologies law
Tailor made.







Partners about the law firm


“We closely monitor the market and learn new trends, so that we can understand our Clients’ business needs. Our job is not only to offer legal solutions, but also to search for answers which will help them grow their business, especially using new technologies.”


“We offer counsel in areas of law which we are truly keen on and which we are passionate about. Our Clients can see this dedication and appreciate it. We frequently establish warm and lasting relations with our Clients’ representatives; we rely on them as the source of our satisfaction and a ground for a successful collaboration.”


“I joined Anna and Marcin because we have similar professional experience and thoughts on business. After years of working in corporations and large law firms, we all wanted greater independence. But greater freedom is a greater responsibility, which forces the best understanding of customer needs. We are also aware that the client needs not only high-quality consulting, but also a broader understanding of his affairs. We have a team that can provide that..I joined Anna and Marcin because we have similar professional experience and thoughts on business. After years of working in corporations and large law firms, we all wanted greater independence. But greater freedom is a greater responsibility, which forces the best understanding of customer needs. We are also aware that the client needs not only high-quality consulting, but also a broader understanding of his affairs. We have a team that can provide that.”


About us

We have set up a specialized law firm to help our clients protect their intangible assets and develop new business based on new technologies and data.

Our goal is to provide complex, specialized support to our customers’ key issues - we are constantly close to them, providing the most precise, clear, and business-oriented legal advice – always tailored to their business needs.

We rely on our many years of experience, gained in well recognized international law firms operating in Poland.

We provide legal consultancy in the field of data privacy, copyright and related rights, trademarks, industrial designs, know-how, protection against acts of unfair competition, protection of business secrets, provision of electronic services, press law and advertising law.

We offer support in adapting business practices to the requirements of personal data protection regulations, in particular in the context of the General Data Protection Regulation (GDPR). We work out secure legal solutions for new forms of data collection and use, including personal data, such as drones, social media, Big Data analyses, or IoT.

Our Expertise


The offer includes the preparation of companies to implement legal requirements for the protection of personal data, support for compliance with legal requirements in the use of new technologies and representation of clients in proceedings before the supervisory authority.


We help clients protect their rights both at the stage of intellectual property (including employer-employee relationship, contractor-contractor), and during transformations and corporate changes (for example, when selling a part or the whole enterprise).


We help our customers determine their eligibility to use new technology, gain access to uninterrupted use, and protect against claims that may arise from the use of new technologies.


Our lawyers offer unique experience in the field of telecommunications law, having been involved in several hundred proceedings, including representation in regulatory disputes on behalf of the largest telecommunications companies and service providers.



Anna Kobylańska is an advocate, member of the Warsaw Bar Association. Prior to establishing her own law firm, she practiced Intellectual Property, New Technologies and Personal Data Protection Law in international law firms for more than a decade.

Anna specialises in legal counselling in the field of personal data protection, copyright, industrial property rights, media and advertising law, and the law of new technologies. She has many years of experience in leading projects relating to Internet domain names protection, use of new technologies to collect and process personal data (IoT, Big Data, behavioural targeting) and IT systems implementation. She was also on board in projects concerning the assessment of the potential of technological start-ups in the context of the intellectual property generated by them. As regards the implementation of the EU GDPR requirements, she has worked for clients in the financial, media, automotive, retail, pharma and business consulting sectors.

She is the author of one of the first books in Poland on “Protection of Trademarks on the Internet” and the co-author of “Data Protection in Business Practices” and “Protection of Trademarks: Online Use and Anticybersqautting. A European Perspective”. For several terms she has been involved in the works of the committees of the International Trademark Association (INTA, an international association of trademark protection specialist),including in 2016-2017 in the Personal Data Protection Committee. She lectures at the Hugo Grotius Intellectual Property Centre. She is a member of the International Association of Privacy Professionals and a member of the EC Multistakeholder Expert Group to Support the Application of GDPR.

In 2017, Anna’s data protection law practice was distinguished in the regulatory law firms ranking published by Polityka Insight. Since 2012, Anna has also been ranked each year in the Chambers and Partners Europe in the “TMT: Data Protection” area.

Contact details:

e: Anna.Kobylanska @ klmlaw.pl

t: +48 515 975 705


Marcin Lewoszewski is a legal advisor, member of the District Chamber of Legal Advisers in Warsaw. Before joining the firm, he worked for over seven years as part of the TMT team with one of the leading international law firms based in Warsaw. Earlier, for two years, he worked in the Office of the Polish Data Protection Authority.

For years, Marcin has been advising clients whose personal data is the most valuable asset. Recently, he has been helping the Polish computer game producer operating globally in adapting business processes to the requirements of the General Data Protection Regulation. To a similar extent, he supported one of the largest CRO entities in Poland. He also advised a large capital group operating on the financial market in connection with breaches of personal data protection. He assisted one of the largest corporations in the world in the process of accepting binding corporate rules (BCR) in proceedings before the Polish data protection authority.

Currently, he represents before the court a party to the proceedings ended with the imposition of the first financial penalty in Poland by the President of the Office for Personal Data Protection on an administrator whose activity is based on the processing of data from publicly available registers.

On regulatory matters Marcin Lewoszewski advises leading brands operating on the global media and telecommunications market, including in the field of OTT services (media streaming, VoIP). He is the author of several dozen articles on the subject of personal data protection - he published, among others, in the Polish edition of Harvard Business Review, in Rzeczpospolita, Dziennik Gazeta Prawna, and abroad - in BNA Bloomberg, IAPP PrivacyTracker or DataGuidance. He is the co-author of the chapter in the book on Polish regulations on the protection of personal data "The Law Reviews: the Privacy, Data Protection and Cybersecurity". He was quoted many times by the professional press in Poland and abroad, including the opinion-forming Politico. Regardless of his work in the office, he is the editor-in-chief of the quarterly Information in Public Administration, published by C.H. Beck.

In 2016, he was selected by the International Association of Privacy Professionals, a globally operating organization gathering professionals dealing with personal data protection, as the IAPP KnowledgeNET Poland co-chair. Dziennik Gazeta Prawna named him as one of the 30 most promising lawyers in Poland before 30 years of age. He is recognised by Chambers and Partners Europe as one of the leading data privacy lawyers in Poland.

Contact details:

e: Marcin.Lewoszewski @ klmlaw.pl

t: +48 604 817 352


Dr hab. Arwid Mednis is a legal counsel specialising in new technologies law, in particular in personal data protection law and telecommunications law. He also deals with issues of cyber security, information protection and access to public information.

Arwid’s specialty is also administrative law, in particular the law of local government and public-private partnership.

In the years 1991–2000 Arwid represented Poland in the Committee for the Protection of Personal Data in the Council of Europe in Strasbourg, in the years 1998–2000 he was its chairperson. He was a member of the GIODO Scientific Council, as well as the author and co-author of draft laws on personal data protection and the exchange of business information. While working on regulations implementing the General Regulation on the Protection of Personal Data (GDPR), he was an expert on behalf of public and private institutions.

He represents clients in regulatory cases, as well as in court and administrative proceedings.

Arwid Mednis also works at the Faculty of Law and Administration of the University of Warsaw, where he lectures, among others, on access to public information, personal data protection, electronic communications law and cyber security. He has authored numerous publications in the above fields.

For many years, he has led the telecommunications law and personal data protection rankings of specialist publishers and legal guides, including Chambers Europe Legal Directory, Legal 500 EMEA and Legal Experts EMEA. He has also regularly won awards in the law firms rankings of the Rzeczpospolita daily (including for the personal data protection leader in 2018 and 2019).

Contact details:

e: Arwid.Mednis @ klmlaw.pl

t: +48 510 087 786


Agnieszka is an advocate and holds PhD in Law. Agnieszka is an Of-Counsel cooperating with Kobylańska Lewoszewski Mednis.

She has been advising on legal aspects of new technologies, in particular in particular IT contracts, telecommunications law, e-commerce and cybersecurity  for more than 10 years.

She is the editor and co-author of the commentary to the act on the national cybersecurity system, issued by the publishing house C.H. Beck. She presents an interdisciplinary approach to consulting: she completed postgraduate studies in project management at the Warsaw University of Technology and holds Agile PM Foundation certificate, Prince2 Foundation certificate as well as ITIL Foundation certificate. She is an ISO 27001 certified lead auditor.

Contact details:

e: Agnieszka.Besiekierska @ klmlaw.pl

t: +48 22 25 34567


Ewelina Kęciek has been submitted to Warsaw Bar Assosciation as trainee advocate. She graduated from the Faculty of Law and Administration at the University of Warsaw and from postgraduate studies in data protection law and law of new technologies organised by the Kozminski University. Before joining Kobylańska Lewoszewski Mednis law firm she cooperated with Warsaw law firms providing legal consultancy in the field of data privacy and e-commerce law.

Ewelina specialises in personal data protection law and regulations governing the e-commerce industry, including consumer regulations. She uses her knowledge in this field to provide legal consultancy for clients from various sectors of the economy. Ewelina has experience in conducting audits of compliance with personal data protection regulations and in the implementation of GDPR requirements, including conducting training courses in several companies. She was a member of the Data Protection Officer team in one of the leading media groups in Poland. Ewelina drafts opinions, internal GDPR documentation and documentation for websites, participating in the project from the creation of the idea to its full implementation.


Robert Brodzik is an advocate trainee, member of the Warsaw Bar Association. He specializes in data privacy and new technologies law. Robert is a graduate of law at the Faculty of Law and Administration of the University of Warsaw and the School of American Law at Lehrstuhl für US-amerikanisches Recht at the Faculty of Law of the University of Cologne.

Before joining the firm, he was a member of the personal data protection and corporate law team in one of the largest law firms in Poland. Robert has implemented the requirements of the General Data Protection Regulation in over 30 companies from various sectors and industries, including banking, pharmaceutical, automotive, FMCG, and marketing. To a similar extent, he has also conducted audits on personal data protection law and information security. Robert has advised clients on data security incidents and data breaches, as well as investigations before President of the Personal Data Protection Office. He also negotiated contracts for entrusting personal data processing. Robert has experience as a data protection officer and conducted training courses in personal data protection law and information security. He also has experience in providing corporate advisory to commercial companies and M&A transactions.

Robert is the author and co-author of several publications and articles on the personal data protection law, including a commentary to the Polish Personal Data Protection Act. He is also a winner of the academic contest organized at the Faculty of Law and Administration of the University of Warsaw to develop a comprehensive legal model for the implementation of the mobile app using beacon technology.


Monika Chylak completed postgraduate studies in "Intellectual Property Law" at the Jagiellonian University. For several years she has been providing legal advice in the field of copyright law. She cooperated with one of the Warsaw law firms providing  legal services to the media industry. She drafted license agreements and agreements transferring copyrights and participated in business negotiations.

She provided workshops on intellectual property law for members of the Association of Polish Art Photographers in Katowice and participants of KTW Fashion Week.

She participated in the Fashion Law Masterclass organized by Condé Nast College of Fashion & Design in London. She completed the "General Course on Intellectual Property" organized by WIPO.


Jakub Krupiński is a legal counsel trainee at District Chamber of Legal Counselors in Warsaw. He is a graduate from the Faculty of Law and Administration at Lazarski University in Warsaw and is continuing his studies at the Faculty of Economics and Management at the same university, where he is preparing his diploma thesis on "Data Security in Internet Banking Systems". He was a member of the intellectual property law circle. During his studies he finished a course on alternative dispute resolution methods. He gained experience in a renowned Polish law firm dealing with administrative, civil and criminal law cases.

Jakub advises on telecommunications law, intellectual property law, personal data protection and cyber security and new technologies. He actively advises companies on entrustment of processing of personal data, transfer of personal data to third countries and other compliance aspects of personal data processing with the EU Regulation on the Protection of Personal Data (GDPR) as part of various business processes. He also advises on innovative projects and conducts analyzes of potential legal risks. His interests also lie in the area of development and application of technology in the financial sphere (fintech).


Mikołaj Ostoja-Ciemny is an attorney trainee at the District Bar Council in Warsaw. He gained his previous experience in teams focused on digital transformation, new technology law and personal data protection at a renowned Polish law firm. He graduated with honors from the University of Warsaw Law Faculty and studied also at the University of Lisbon.

Mikołaj specializes in advising on data protection, privacy and new technologies law, including IT contracts. He has participated in IT implementations (including cloud computing) in regulated sectors, implementations of EU Data Protection Regulation (GDPR) requirements, and advised on the compliance of personal data processing with applicable laws. He has experience in conducting workshops on copyright law and agile project management.


Filip Starzec is a graduate of law at the University of Warsaw. He also completed a one-year course at the Center for American Law organized by the Faculty of Law and Administration of the University of Warsaw in cooperation with Georgia State University Collage of Law and Emory University School of Law. Prior to joining KLM LAW, Filip gained experience in alternative dispute resolution, pharmaceutical and banking law in Polish and international law firms.

Filip specializes in cyber security and new technologies law. He also deals with personal data protection issues, regulation of professional secrecy and the potential application of blockchain technology. He is one of the co-founders of the Scientific Circle of New Technologies Law at the University of Warsaw and an honorary member of the KoMiN Scientific Circle of Mediation, Negotiation and Arbitration.