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Matej Kosalko

Senior Associate


Image of Matej Kosalko
Matej Kosalko

Senior Associate


Matej is a dual qualified (English and Slovak law) associate specialising in commercial and investment treaty arbitration as well as litigation. Matej has represented clients from various sectors in arbitration and litigation proceedings including energy, infrastructure, real estate, retail, finance, and technology and media.

Matej has represented clients in commercial and investment arbitration proceedings seated in both civil and common law jurisdictions (e.g. London or Vienna) and under ICC, LCIA, VIAC and ICSID arbitration rules.

He has extensive experience in complex construction disputes in PPP projects, and under FIDIC and other EPC forms of contracts. Matej frequently appears on behalf of the clients before adjudication boards (DABs), state courts and arbitral tribunals. He acted for contractors and employers in major construction projects in the Slovak Republic but also abroad.

Related articles

Publications: 19 March 2020

Covid-19 coronavirus and businesses in Slovakia: force majeure

Read more Covid-19 coronavirus and businesses in Slovakia: force majeure

Publications: 21 June 2018

Act of State doctrine applies in arbitration

Read more Act of State doctrine applies in arbitration



Eurovea Central 1, Pribinova 4

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Admitted as solicitor, England and Wales, 2018

Fellow of the Chartered Institute of Arbitrators, 2017

Admitted as attorney, Slovak Bar Association, 2014


LL.M. in International Business Law, Central European University, accredited by the University of the State of New York, 2010

Diploma in Higher Education in an Introduction to English Law and the Law of the EU, University of Cambridge, 2010

Matej Bel University, Law Faculty, Slovak Republic, 2009

Published Work

“Has Slovakia become an arbitration-friendly jurisdiction?”, LEXOLOGY, 2019 

“Act of State doctrine applies in arbitration”, co-authored with L. Raimanova, JD Supra, 2018 

“Awards on Costs in Investment Arbitration”, speaking at Comenius University, Bratislava, Slovak Republic, 2018 

“(In)Genuinely Foreign Investment: A Survey of Nationality Requirements in Investment Dispute”, European Investment Law and Arbitration Review, Volume 3: Issue 1, 2018 (Won EILA essay competition of 2018.) 

“Currency Risks in Long-Term Contracts in Commercial and Investment Arbitration”, speaking at University of Latvia, Riga, Latvia, 2017