Szymon Sieciechowicz

Trainee Attorney


A graduate of law at the Faculty of Law and Administration of the University of Adam Mickiewicz in Poznań. First year trainee attorney at the Greater Poland Bar Association. At an advanced level, he speaks English and legal English (confirmed by obtaining the Toles Higher certificate with the highest score – excellent). He also knows German at an intermediate level. He has been working at GWP since 2018. In the course of his practice so far, he has dealt with matters related to:

  • commercial law, incl. registration proceedings, establishment, liquidation and transformation of companies as well as processes of divisions and mergers of companies,
  • tax proceedings and inspections, also at the stage of court proceedings before Provincial Administrative Courts and the Supreme Administrative Court,
  • fiscal penal law,
  • economic proceedings.


At GWP, he is a member of the commercial law department operating in the field of company law. As part of his work in the commercial law team, he carries out the processes of creation, liquidation, transformation of divisions and mergers of commercial companies and assists in their current functioning.

He is also a member of the tax and penal fiscal proceedings department – he represents clients in the course of tax inspections, customs and fiscal inspections and in tax proceedings, also at the stage of court proceedings before the Provincial Administrative Court and the Supreme Administrative Court.

Occasionally, he also supports the civil department at various stages of the civil process. Responsible for drafting letters at the stage of negotiations between the parties and pleadings at the court stage.





Supporter of spending free time actively. He trains football and squash. Privately passionate about learning foreign languages.

Need consultation?

Feel free to call or e-mail me:
+48 61 640 38 18
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