Iaroslav Gregirchak

Strategic Advisor International Desk (Of Counsel), Fellow of the Chartered Institute of Arbitrators (FCIArb)

Key Specialization

International Arbitration

Dispute Resolution

Commercial Law

Anti-Corruption Reforms

Government Relations

Specialization

Iaroslav is a renowned government relations (GR) and public policy professional. Possesses holistic expertize in alternative dispute resolution (ADR) with emphasis on international investment and commercial arbitration as well as mediation. As a seasonal lawyer with more than 20 years of experience Mr. Gregirchak advised both international and domestic clients (including state-owned entities and international organizations) on the wide scope of matters pertaining to their activity in Ukraine and abroad.

From May 2015 to October 2022 he served as the Deputy Business Ombudsman of Ukraine. In that role he led the team of 6 inspectors tasked to investigate instances of business malpractice on the part of public authorities, as specified in the individual complaints lodged by businesses. He also authored 9 systemic reports focused on main challenges with the quality of business environment in Ukraine (including follow-up work aimed at implementing system recommendations set forth therein), namely: administering taxes (2015 and 2020); abuse of powers by law enforcement authorities (2016 and 2021); promotion of economic competition (2016); getting access to electricity (2015); combatting ridership (2017); improving customs (2018) as well as the need to introduce comprehensive legal framework governing administrative appeal procedure (2019).

In 2004-2010 Iaroslav occupied leading positions with international law firms Chadbourne & Parke and Gide Loyrette Nouel.  He possesses broad expertise in key spheres of commercial law reform (such as secured transactions and public finance) gained in Ukraine and Azerbaijan with the World Bank and USAID. In particular, in course of 2002-03 Iaroslav was instrumental in drafting the text of the Law of Ukraine “On Securing Creditor’s Claims and Registration of Encumbrances”.

Recognitions

In 2019 and 2020, Iaroslav was ranked among the TOP - 10 lawyers most actively engaged in Ukraine’s public and political life, according to Yurydychna Praktyka legal publication.

Education

In 1996 Iaroslav graduated from the Faculty of Law of Kyiv National Taras Shevchenko University.

In 2002, he received Master of Laws (LL.M) degree from McGill University in Montreal, Canada.

Qualification

Iaroslav is a lawyer and consultant with over 20 years of experience in governance, public policy, commercial law, dispute resolution, and anti-corruption reform.

Since 2016, he has been a Fellow of the Chartered Institute of Arbitrators (FCIArb) (London, England), Membership No. 353339.

Management

As of 1 December 2025, Iaroslav has been appointed Strategic Advisor to the International Desk - a dedicated practice focusing on cross-border initiatives, international disputes, engagement with international financial institutions and investors, and legal support for Ukraine’s reconstruction.

Languages

Ukrainian, Russian, English

News
ADER HABER launches International Desk to work with international projects and institutions