Mob: +370 612 665 41
Tel.: +370 5 248 76 70

Arūnas Šidlauskas has more than 28 years of professional experience and 24 of them are in the consulting business.

He started his professional career in 1994 as a lawyer, later on joining the Ministry of Foreign Affairs and ultimately working as a tax and legal consultant in various law firms and companies: Arthur Andersen, FORESTA BLG, Cobalt, LawHouse, Grant Thornton Baltic. In 2021 Arūnas Šidlauskas joined ILAW LEXTAL as a partner.
Arūnas’ key qualifications are related to advisory on tax, tax litigation as well as reorganizations and corporate restructurings. He also led various teams of lawyers in M&A transactions, tax, and legal due diligence.
Arūnas Šidlauskas holds lectures to the professional organizations of Lithuanian auditors and bookkeepers, and publishes articles in professional publications and local newspapers.
Arūnas is fluent in Lithuanian, Russian and English languages. 


Practice areas:

  • Tax
  • Tax advisory
  • Tax litigation
  • Reorganizations of companies
  • Restructuring groups of companies


Professional career:

Partner, since 2021

Partner, 2017 - 2021

Grant Thornton Baltic 
Head of the Tax & Legal Department, 2006 - 2017

Senior Associate, 2002 - 2006

Foresta Business Law Group
Senior Associate, 1999 - 2002

Arthur Andersen
Tax and Legal Advisor, 1997 - 1999

European Integration department, Ministry of Foreign Affairs
2nd Secretary of the Law Harmonization Division, 1995 - 1997

Construction and renovation company Linkmenys
Legal advisor, 1994 - 1995



Vilnius University
Master of Laws (LL.M.) degree
Netherlands Institute of International Relations “Clingendael”
The College of Law of England and Wales
Diploma in Mergers & Acquisitions