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Work +370 5 268 1888
Fax +370 5 212 5591
Riga, Tallinn, Vilnius

Dr Jaunius Gumbis

Work +370 52681830

Work Department

Industry & Regulatory Practice Group.


Partner; Head of the Industry & Regulatory Practice Group. Practice areas: Competition; Energy & Utilities; IT & Communications; International, EU & Domestic Trade; Public Procurement & PPP.


1992 to date - Ellex Lithuania (previously LAWIN Vilnius), 2001 to date - Partner, Head of the Industry & Regulatory Practice Group; 2005 to date - Visiting Professor, Salzburg University; 1993 to date - Associate Professor of Philosophy of Law and Legal Reasoning, Vilnius University.


Lithuanian, English, Russian.


Recommended Arbitrator of Vilnius Court of Commercial Arbitration; Energy Law Group.


2002 - Vilnius University, Ph.D. degree; 1995 - Studies at Jean Moulin University, Lyon, France; 1994 - Studies at International Institute of Human Rights, Strasbourg, France; 1993 - Studies at Academy of American and International Law, Dallas, USA; 1993 - Vilnius University, Master of Laws (LL.M.) degree.


EU and competition

Within: EU and competition

Ellex has a ‘high-quality’ practice, which has recently been active in Lithuanian Competition Council (LCC) investigations, state aid cases and private enforcement litigation. Pfizer and JCDecaux are key clients. Practice head Marius Juonys defended Guliverio kelionės and Zigzag Travel in a cartel matter. EU practice head Jaunius Gumbis is well respected, as is recently promoted associate partner Karolis Kačerauskas. Among the senior associates, Paulius Mencas was recently promoted, Giedrė Adomavičiūtė joined from Sorainen and Ilona Jančiauskaitė is an experienced figure.

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Intellectual property

Within: Intellectual property

Ellex excels in the IP litigation space. Group head Vytautas Mizaras is representing Akzo Nobel Baltics in two multijurisdictional disputes, including defending the client in a landmark trade mark dispute concerning passing off of signs that are similar to registered a trade mark. Jaunius Gumbis continues to represent Exeltis Baltics in patent litigation regarding the revocation of four patents owned by Bayer. Telia Company and the Lithuanian Basketball Federation are also clients.

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Projects and energy

Within: Projects and energy

Ellex acts for an array of energy companies – including gas, wind and electricity – and heating utilities. Dovilė Greblikienė leads the energy group, which is part of the regulatory industries and trade practice led by Jaunius Gumbis, and is advising Veolia on a heating sector lease agreement; the client is being represented in a regulatory investigation relating to the lease, which ended in 2017. Infrastructure projects practice head Ramūnas Petravičius is representing the Republic of Lithuania in arbitration with Gazprom pertaining to allegations that the respondent failed to supply natural gas at a fair price. Other clients include enerty, Klaipėdos nafta, Nord Pool Spot and Minijos nafta.

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Within: Leading individuals

Jaunius Gumbis - Ellex

Within: TMT

Clients such as IBM and Sanofi call on Ellex’s specialists, including members of its life sciences, entertainment and commercial practice. Department head Jaunius Gumbis acted as local counsel to Hubert Burda Media on making a $27m series C investment in Tomas Kamblevičius, Julius Zaleskis and Mantas Rimkevičius are up-and-coming senior associates.

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Legal Developments by:


    Inside this issue:  Latest case law in labour matters Protection of proprietary in-terests of a company at the European Court of human rights — why not? Assessing the transfer of an undertaking NEWS – ANNOUNCEMENTS – EVENTS
    - Lepik & Luhaäär LAWIN

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
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    The Minister of Commerce and Consumer Affairs, Kris Faafoi, has today tabled the Commerce (Criminalisation of Cartels) Amendment Bill (the Bill ) in the House.
  • Luxembourg introduces draft legislation to create beneficial ownership registers

    Luxembourg’s government has published draft legislation to incorporate into national law the requirements under articles 30 and 31 of the European Union’s Directive 2015/849 on the prevention of the use of the financial system for the purposes of money laundering or terrorist financing, better known as the 4th Anti-Money Laundering Directive. Placed before the Chamber of Deputies on December 6, 2017, draft law no. 7217 would establish a central register of beneficial owners of Luxembourg legal entities such as companies and partnerships under the authority of the minister of justice, while draft law no. 7216 would create a similar register of beneficial owners of fiduciary contracts, that is express trusts, under the authority of the Administration de l’Enregistrement et des Domaines, Luxembourg’s indirect tax authority.
  • The new EU regulation on general data protection 2016/679 (“GDPR”)

  • Spouses and tax demands

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    The Serbian Competition Commission (the " Commission ") recently finished sector inquiries concerning quite distinct industries – raspberries and the public procurement for software and hardware. The aim behind the inquiries was to perform extensive market research and analysis in order to acquire a clearer picture of the possible antitrust issues and risks in two sectors widely perceived as strategic for the development of the Serbian economy.
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  • The Public Administration Electronic Market: the future of public procurement

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  • Even More Sector Inquiries: Sportswear And Oil Retail Under Scrutiny By The Serbian Commission

    The Serbian Competition Commission (the " Commission ") continues its diligent examination of the Serbian competitive landscape in specific industries, this time with inquiries in two more industries – sportswear (including footwear and sporting equipment) and oil (petroleum products). Once again, the aim behind the market test was to identify potential issues on the relevant markets and provide broader insight into the functioning of the relevant markets.