Skip to main content

Julia Gontarska focuses her practice on litigation proceedings, specifically on international and domestic arbitration proceedings (including investment arbitration) and disputes before common courts.


  • Commercial arbitration
  • Investment arbitration
  • Commercial litigation



  • Acted in USD 475 million arbitration proceedings representing an investor in a dispute against one of the European Union states concerning his inability to effectively use radio frequencies in the 850 MHz band to develop an LTE mobile phone network (ICC Rules of Arbitration).°
  • Participated in the work for Allianz S.E. in connection with the EUR 2.5 billion acquisition of Aviva’s Polish life and non-life insurance, pensions and asset management businesses, and 51% stakes in life and non-life bancassurance joint ventures with Santander.

°The above representations were handled by Ms. Julia Gontarska prior to her joining GREENBERG TRAURIG Nowakowska-Zimoch Wysokiński sp.k.

  • Represented a client operating in the luxury hospitality industry against multiple European state-owned entities in complex multi-contract LCIA arbitration arising from high-profile landmark hotels.
  • Acted in arbitration proceedings in relation to a construction dispute between two Dutch companies concerning the refurbishment of a floating production storage and offloading unit (LCIA Rules of Arbitration).°


  • Member, Warsaw Bar Association
  • Member, the Law Society, England and Wales (non-practicing)


  • Advocate, 2020
  • Solicitor, 2020
  • Legal Practice Course, BPP Law School, London, 2015
  • Master of Law, European School of Law and Administration, Warsaw, Poland (London Branch), 2015
  • Graduate Diploma in Law, BPP Law School, London, 2014
  • LL.B. European Law School, Maastricht University, Netherlands, 2013
  • Poland
  • England and Wales (non-practising solicitor)
  • Polish, Native
  • 英語, Fluent
  • German, Fluent
  • French, Conversational
  • Dutch, Conversational