The April issue of the newsletter is now available
In the April issue, you can read about, amongst other things: the latest legislative changes in the energy sector, which may affect investment development and the …
We support companies at every stage of their development: from the first business decisions, through successive stages of growth, all the way to a stock market debut.



Law and tax firm based in Warsaw
Lawyers, legal advisers and tax advisers in one team
Polish and foreign customer service
From day-to-day handling to complex transactions
The specialisation of the team allows us to handle projects requiring knowledge in many areas of law, as well as management and economics.
Day-to-day operation of companies, governance, corporate documentation, representation in corporate disputes.
Read more →KIS interpretations, R&D and IP Box reliefs, transfer pricing, MDR, audit and tax proceedings.
Read more →Regulatory advice (URE, SOKiK), RES auctions, PPAs, wind and PV projects, M&A in the energy sector.
Read more →We combine legal advice with an understanding of the specific industry in which our client operates.
The firm's standing is regularly confirmed in independent legal and tax rankings.




Additionally recommended in the "Rzeczpospolita" Ranking of Law Firms in the categories: Energy and natural resources · Restructuring and bankruptcy
What clients say after working with our team.
I highly recommend working with HWW Law Firm. I've been using their services for several years. They helped me, among other things, launch my business, and they still provide ongoing consultations on corporate matters. Everything is conducted in a friendly atmosphere, and legal complexities are explained in a straightforward manner. I particularly appreciate the comprehensive service and the fact that my interests are taken care of in one place, both legally and tax-wise. Furthermore, the firm often offers solutions to me and my partners on its own initiative, making our lives easier. I also appreciate the responsiveness of the HWW lawyers, as I've had mixed experiences with other firms in this area.
I wholeheartedly recommend this law firm. From the very first contact, I was treated with great respect and empathy. The firm's team is not only extremely professional and reliable, but also friendly and responsive to the client's needs. I felt I was in good hands – every issue was thoroughly explained, and my matters were handled with complete dedication. This is a place where high-quality legal services are combined with a human touch. Thank you for your help and support!
We highly recommend HWW to all companies seeking professional legal advice in the energy sector. We successfully renegotiated contracts with electricity suppliers. I highly recommend it.
Professionalism at the highest level, especially from attorney Aleksandra Lidner. She calmly explained the necessary aspects of the case, allowing me to feel completely safe and secure. I wholeheartedly recommend her.
Professionalism, reliability, and a personalized approach to each client are the hallmarks of this law firm. I highly recommend them to anyone seeking effective legal assistance!
In the April issue, you can read about, amongst other things: the latest legislative changes in the energy sector, which may affect investment development and the …
On March 29-30, 2026, Aleksandra Lindner, Attorney at Law, Judicial Mediator, Partner, and Mikołaj Hewelt, MBA, Partner, Attorney at Law, Tax Advisor and Restructuring Advisor, are …
Importantly, the activation of reserve sales takes place automatically by law — the customer does not need to take any action, and the continuity of supply …
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