LAWYER PROFILE
Marcin Iwaniszyn

Marcin Iwaniszyn

Europe 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 1 practice area

About

Provided by Baker McKenzie

Career

Marcin Iwaniszyn is an attorney at law and partner in the Baker McKenzie Warsaw office. He heads the Banking and Finance Practice.

Marcin graduated from the Faculty of Law and Administration of the University of Warsaw in 2006, also completing a course in US law, with distinction, at the Center for American Law Studies co-organized by the University of Warsaw and the University of Florida Levin College of Law in 2005, and he qualified as an attorney-at-law in 2010. Prior to joining the Firm in May 2022, Marcin worked at another renowned global law firm starting from 2005, most recently as a partner co-heading the banking and finance practice there. Following the withdrawal of the global firm from Poland, for two years he was a partner and co-head of the banking and finance practice at a Polish independent law firm founded by the partners of that global law firm.

Marcin has experience in M&A financings (including cross-border and public ones), complex corporate financings and refinancings, debt securities issues and debt restructuring processes. He and his team have participated in numerous domestic and international debt financings and refinancings, advising companies, financial institutions, private equity funds, strategic investors and investment firms on many of the largest M&A transactions, leveraged buyouts and delistings in recent years. His experience also includes advising on many financings in the renewables sector.

Personal

Warsaw University

Chambers Review

Provided by Chambers

Chambers European Guide

Banking & Finance - Poland

Band 4
Band 4

Individual Editorial

Marcin Iwaniszyn advises on large financing deals, including acquisition and real estate and renewable financing as well as support with loans and restructuring.

Strengths

Provided by Chambers

  • Marcin Iwaniszyn has excellent communication skills and is very responsive. He has an understanding of client needs.

    Banking & FinanceChambers European Guide
  • Marcin Iwaniszyn brings added value and looks for win-win solutions.

    Banking & FinanceChambers European Guide
  • Marcin Iwaniszyn provides highly engaged, commercial and solution-oriented support throughout.

    Banking & FinanceChambers European Guide
  • Marcin runs the practice very well, allowing the team to deliver best results.

    Banking & FinanceChambers European Guide
  • Marcin has vast legal knowledge. We can always count on him, he is always supportive with outstanding managerial skills. I would recommend cooperation with him without any hesitation.

    Banking & FinanceChambers European Guide

Ranked Individuals at Baker McKenzie (249)

Austria

Belgium

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership