act legal covers all major European business centres.
Warsaw | Amsterdam | Bratislava | Bucharest | Budapest | Frankfurt | Madrid | Milan | Prague | Vienna
meet us at


Jacek Bieniak

attorney-at-law / managing partner

With many years of legal consulting experience, his main areas of expertise are corporate consulting, mergers and acquisitions, international transactions and foreign investments. He also boasts vast experience in restructuring and bankruptcy law. He has represented creditors in bankruptcy and restructuring processes on numerous occasions. He has also helped a number of debtors to declare bankruptcy. Over the course of his professional career, Jacek has handled a wide range of labor law cases, incl. collective bargaining agreements.

Jacek advises Italian clients operating across a variety of sectors. He serves as a treasurer at the Italian Chamber of Commerce and Industry, and a member of Accademia Italiana della Cucina, an Italian institution with long-standing traditions. Jacek is also a member of supervisory boards of many renowned companies. Key clients: Grupa Boryszew, Maflow BRS, Delfo Polska, Pini Group, RUG Riello, Riello Paliniki and MW Lublin. He has co-written multiple papers and comments on the Polish Code of Commercial Companies, public limited companies and partnerships limited by shares.

Recommended by The Legal 500 EMEA 2020 in Commercial, Corporate and M&A.

Jacek speaks fluent English and Italian.

Graduate of the Faculty of Law and Administration at the University of Warsaw.




Sales of the KTI Poland company shares

Advising the company belonging to the Gloria group on the sale of the KTI Poland shares to the benefit of the Italian APS Engineering Roma group, specializing in the execution of projects related to the oil and gas industry.

Read more

Dispute pertaining to commercial investments

Representing the company belonging to the CNH group in the dispute regarding commercial investments.

Read more

Representing AB Logistyka in the dispute with the General Contractor

Representing AB Logistyka in the dispute with the General Contractor pertaining to the defects of the works conducted in relation to the logistics centre.

Read more

Representing Fadesa Polnord

Representing the developer, Fadesa Polnord, in disputes with the purchasers of residential premises.

Read more



act BSWW ranked in The Legal 500 EMEA 2019

We are delighted to announce that we have received industry recognition from The Legal 500 EMEA 2019 in seven categories and numerous individual recommendations for our practitioners. Recommendations for the law firm: - banking and finance - capital markets - comm...

View all