Why GSZ?

Clients say we’re a law firm for difficult cases. They say they come to us because they trust that we can solve even the most complex problems. And it’s true — we can. But that’s not all.

We are a team of attorneys and legal counsels specializing in comprehensive business support. Our clients can rely on us whenever they need legal and tax assistance — whether in challenging situations or in the everyday matters of running a business.

Our Experts

Andrzej Zwara

About Us

Marek Głuchowski, Ph.D.

About Us

Prof. of the Warsaw School of Economics Tomasz Siemiątkowski, Ph.D.

About Us

Grzegorz Flisiak

About Us

Piotr Głuchowski, Ph.D.

About Us

Michał Kraiński

About Us

Karolina Muchowska-Zwara, Ph.D.

About Us

Robert Nawara

About Us

Wojciech Bergier

About Us

Justyna Bojarska

About Us

Michał Głuchowski

About Us

Justyna Hildebrand

About Us

Prof. of the Jagiellonian University Janusz Raglewski, Ph.D.

About Us

Aleksandra Ringwelska

About Us

Mateusz Wyborski

About Us

Eliza Zeidler

About Us

Beata Zglińska

About Us

Piotr Zieliński

About Us

Awards

1st Place – Largest Law Firm in the Region

Rzeczpospolita – Law Firm Ranking 2025

Tomasz Siemiątkowski – Leader in the field of Commercial Law, Corporate Law, Mergers and Acquisitions

Rzeczpospolita – Law Firm Ranking 2025

Andrzej Zwara – Leader in the field of Real Estate

Rzeczpospolita – Law Firm Ranking 2025

Law Firm – Leader in the category of Commercial Law, Corporate Law, Mergers and Acquisitions

Rzeczpospolita – Law Firm Ranking 2025

Law Firm – Leader in the category of Real Estate

Rzeczpospolita – Law Firm Ranking 2025

Gdansk

Opacka 16 Street, 1st floor
80-338 Gdansk

T: +48 58 555 21 11

F: +48 58 555 21 33

Warsaw

Grzybowska 4 Street, unit U1A
00-131 Warsaw

T: +48 22 380 00 38

F: +48 22 599 40 38

Krakow

Mikołajska 13 Street, unit 3.2
31-027 Krakow

T: +48 12 288 41 11

New York

Rockefeller Center
630 Fifth Avenue, Suite 2000
New York, NY 10111

T: +1 (862) 202-5628  
F: +1 (973) 338-3541