Loewen
Maciej Siejbik

Maciej Siejbik

Attorney-at-law
m.siejbik@loewen.pl

Maciej Siejbik is an attorney-at-law who focuses on civil and commercial disputes, including employment matters and criminal proceedings. He gained experience both in private practice and in the Legal Department of the Supreme Audit Office (NIK).

He also represents Clients in administrative and administrative court proceedings, acting on behalf of both parties to proceedings and public authorities.

Selected areas of practice:

Valued for his analytical expertise and his ability to translate experience into clear, secure, and effective strategies for the Client.

  • Graduate of the Faculty of Law and Administration at the Cardinal Stefan Wyszyński University.
  • Admitted to the Warsaw Bar Association in 2025.
  • He completed his attorney-at-law traineeship with honours for outstanding academic performance.