Management Board

The Mercator Medical Group is managed by
the Management Board and Supervisory Board of Mercator Medical S.A.

Wiesław Żyznowski, PhD

Wiesław Żyznowski, PhD


Wiesław Żyznowski (born 1964) – President of the Management Board of Mercator Medical S.A. since 2010. He co-founded the Mercator companies in the 1990s together with Piotr Żyznowski.
In 1991–2001, he was (intermittently) a shareholder and President of the Management board of Firma Handlowa Mercator Żyznowski i Spółka S.J., which was transformed in 1993 into Mercator Med S.A., and Mercator Poligrafia S.A., and then the chairperson of the Supervisory Boards of Mercator Poligrafia S.A. (2001–2007) and Mercator Medical S.A. (1996–2010). Since 2010, he has been a shareholder of Anabaza Ltd. with its registered office in Nicosia, which is a shareholder of Mercator Medical S.A. Since 2006, he has been a shareholder of Mercator Medical (Thailand) Ltd.

Wiesław Żyznowski is a graduate of the Faculty of Management at the Cracow Academy of Economics (presently the Cracow University of Economics) and the Faculty of Philosophy at the Jagiellonian University in Cracow, where he has been awarded the degree of Doctor of Philosophy. His primary area of expertise is the philosophy of entrepreneurship. He has published and authored books about the Wieliczka region, he is a manager and entrepreneur, and he also owns the Baza Wiesław Żyznowski company in Siercza near Wieliczka, which is an administrator of real estate and the Żyznowski micro-publishing house (

Monika Żyznowska

Monika Żyznowska

President of the Management Board at Mercator Distribution (Business Unit)

Monika Żyznowska (born 1986) - with Mercator Medical S.A. associated since 2010. Since 2013, she has held formal positions in the Management Boards of Mercator Medical (Thailand) Ltd. From August 2017, a member of the Management Board of Mercator Medical S.A., and from 2021 CEO of Mercator Distribution (Business Unit).

In 2014–2016, she also held formal positions in the Management Board of the subsidiary Brestia Sp. z o.o.

In 2012–2015, as a manager of the Head Office, she monitored most and managed some of the projects of the Group; in 2012–2013, she was responsible, in particular, for the organisation of the activities connected with the listing of the Company on the WSE in Warsaw and for the refinancing of the Polish Mercator Medical company. 

In 2010, she received a B.A. in Indological Studies at the Jagiellonian University in Cracow. In 2011, she graduated with honours from the Faculty of Management at the Business School – National-Louis University in Nowy Sącz with a major in management and minor in marketing management.

Dariusz Krezymon

Dariusz Krezymon

President of the Management Board at Mercator Medical (Thailand) Ltd.

Dariusz Krezymon (born 1963) has been with Mercator Medical S.A. since 2016. He is the President of the Management Board at Mercator Medical (Thailand) Ltd. and the Member of the Management Board at Mercator Medical S.A.

In 2012-2015, he worked for Organika RUS (Russia) as its General Director. He linked his career with production, in 2010-2012 working as the Factory Director at Trefl SA, and in 2009-2010 - for the company IP Decora East (Belarus) as the Plant Director. From 2004 to 2009 he served as the Director of Operations at the company Vector sp. z o.o. In 2002-2004, at ICT Poland Sp. z o.o., he held the position of the Maintenance Manager, and in 1999-2002, at PZ Industries PLC (Cussons Group, Nigeria), he worked as the Chief Engineer. In 1996-1999, he was the Deputy Director of Production at Malma S.A.

In 1987, he obtained an MS degree in mechanical engineering at the Faculty of Mechanical Engineering of the Gdańsk University of Technology. During his professional career, he has participated in numerous training courses on topics including quality assurance systems, process management, project management, supply chain management, building customer satisfaction, building and motivating teams, implementation of Lean Manufacturing tools.

Fraud alert

Dear Ladies and Gentlemen,

We kindly inform you that the website is not related to Mercator Medical Group and should be considered as a scam and unlawful impersonation of Mercator Medical S.A. or the Mercator Medical Group. We bear no responsibility for any unlawful activities or false information originating from the aforementioned website and other online and offline channels that falsely impersonate the Company. The Company’s only official website is

Mercator Medical Group will report any suspicious or unlawful activities undertaken by any person or organisation falsely impersonating the Company to the relevant authorities, and reserves the right to take legal action against fraudsters.

With reference to information we have received about attempts to impersonate Mercator Medical S.A. or Mercator Medical Group companies to fraudulently obtain an advance payment for allegedly owned merchandise, we urge you to exercise caution and carefully verify your business partners.

Mercator Medical Team

Fraud alert