GESSEL’s tax law practice is recommended in Polish and international rankings:

International directories of law firms and lawyers such as Chambers Global, Chambers Europe, PLC Which Lawyer? And World Tax constantly list Dr Janusz Fiszer among the leading Polish tax lawyers (Tier 1). According to the Chambers Europe 2010 report: “The … reputation centres to a significant degree on the celebrated Janusz Fiszer. Interviewees are unanimous that he is ‘one of the best tax lawyers in Poland, and particularly prominent in international taxation’ ”. Chambers Europe 2012 reports: “Janusz Fiszer … is ‘the guru of international tax law in Poland’ according to peers…”. According to the Chambers Europe 2013 report: “Janusz Fiszer …retains his reputation as one of the ‘best specialists as far as international tax law is concerned’ ”.

In the 2010 edition of the Ranking of Tax Advisory Firms and Tax Advisors by the Dziennik Gazeta Prawna daily, Dr Fiszer was chosen by competitors as the best tax advisor in the category “International Tax Law” and “Tax optimization”. Additionally, Dr Fiszer was ranked 3rd in Poland in the category “Mergers & Acquisitions”. Similarly, in the 2011 edition of the Ranking of Tax Advisory Firms and Tax Advisors, Dr Fiszer was recognized as the best tax advisor in the category “International Tax Law”.

The latest edition of the prestigious Ranking of Law Firms by the Rzeczpospolita daily, published in April 2013, lists Dr Janusz Fiszer as “recommended lawyer ” in the Tax category for the 9th consecutive year. Also, the prestigious Ranking of Tax Advisory Firms published by Rzeczpospolita in June 2012 and June 2013, respectively, list Dr Fiszer as “the best expert (leader) in international taxation”.

Dr Fiszer is one of few lawyers in Poland constantly recommended in the area of Corporate Tax by the Who’s Who Legal – The International Who’s Who of Business Lawyers, from 2007 onward.

In 2016, in the 10th edition of the Tax Advisory Firms Rating of the Rzeczpospolita daily which recognises the best experts and largest tax advisory operations, Dr Janusz Fiszer was honoured as Tax Advisor of the Decade in the International Tax Law category.

The Legal 500 rankings in 2008 and 2009 also note the high competence of Inarda Bielińska.