Email address
[email protected]Contact number
+380 44 494 19 19Share profile
Spotlight
Provided by Roman Marchenko
Roman Marchenko, a Senior Partner at Ilyashev & Partners, heads the International Arbitration practice. Roman specialises in Litigation, Arbitration, ECHR, Restructuring and Insolvency.
Ilyashev & Partners, founded in 1997.
The Bar Council of Kyiv region, INSOL Europe
Author of more than 100 publications in leading legal and business magazines, including international publications, top speaker at many leading conferences and discussion events in Ukraine and abroad targeted at Ukraine’s legislation improvements.
Graduated from the Institute of International Relations of the Taras Shevchenko National University of Kyiv, International Law Faculty (Master of International Law).
Roman Marchenko is recommended as one of Ukraine’s leading individuals in Dispute Resolution (Chambers Global 2012 – 2024, Chambers Europe 2012 – 2024, The Legal 500 – EMEA 2009 – 2024). Inducted into The Legal 500 Hall of Fame among leading lawyers in Dispute Resolution in Ukraine. Listed in "Client’s Choice: TOP-100 Best Lawyers of Ukraine".
Awarded as an Honored Lawyer of Ukraine by the Decree of the President of Ukraine (2017).
English, Ukrainian, Russian.
Provided by Chambers
Senior partner Roman Marchenko is a market-leading litigator handling disputes in Ukrainian courts. He also has a notable presence in international arbitration, representing clients from the banking, aviation and energy sectors.
34 items provided by Ilyashev & Partners
50 Leading Law Firms of Ukraine 2025: Ilyashev & Partners Ranked Second
Ilyashev & Partners Law Firm was ranked second out of 50 Leading Law Firms of Ukraine 2025, an annual ranking of Ukrainian law firms. A report of the national research program results was published by Yurydychna Praktyka Publishing House on 4 December 2024.
Ilyashev & Partners Recovers EUR 2 million in Favour of Ukrainian State Enterprise
Ilyashev & Partners Law Firm has successfully represented a state-owned enterprise subordinated to the Ministry of Defence of Ukraine in arbitration against a military equipment seller from the Slovak Republic.
Ukrainian Enterprise Awarded USD 292 Million in Recoveries from Russia
The Commercial Court of Luhansk Region ordered to recover from the Russian Federation over USD 292 million of damages caused to PJSC Alchevsk Coke Chemical Plant, one of the largest coke and chemical enterprises in Ukraine.
Ilyashev & Partners Succeeds in VIAC Arbitration with Foreign Military Equipment Supplier
Ilyashev & Partners Law Firm successfully protected interests of the Ukrainian state exporter of military equipment in an arbitration dispute with a foreign supplier.
Ukraine's 50 Leading Law Firms 2024: Ilyashev & Partners Ranked Second
Ilyashev & Partners Law Firm is ranked second out of 50 Leading Law Firms of Ukraine 2024, an annual ranking of Ukrainian law firms. The results of the annual research program were published by Yurydychna Praktyka Publishing House on 14 December 2023.
Court Allows Creative Group Not to Repay Debt to Russian Creditor
Commercial Court of Kyiv City allowed the Ukrainian debtor – Private Joint-Stock Company Creative – not to repay the debt to the Russian creditor of over UAH 3 million.
Ilyashev & Partners Achieves a Positive Decision for Clients in a Bankruptcy Case worth over UAH1bn
The decision of the Economic Court of Kyiv put an end to the bankruptcy case – the collection of funds from Serhii Tyshchenko will be carried out by creditors in full outside the bankruptcy procedure. The total amount of accounts payable exceeds UAH1bn (US$27m).
Ilyashev & Partners Provides Pro Bono Legal Services to the Strategic State Enterprise of Ukroboronp
Ilyashev & Partners Law Firm and the strategic State Enterprise Plant 410 Civil Aviation (a part of the State Concern Ukroboronprom) have reached an agreement to expand the scope of services that the firm will provide pro bono during martial law period.
Chambers Europe 2023 Recommends Ilyashev & Partners as a Leading Law Firm in Ukraine
Ilyashev & Partners Law Firm is recommended by the authoritative international survey Chambers Europe 2023 in Dispute Resolution, Competition/Antitrust, Employment, and Intellectual Property practices. Survey results were released on 16 March 2023.
Ukrainian Supreme Court Rules on the Competence of Ad Hoc Arbitration
On 12 January 2023 the Supreme Court refused to set aside the arbitral award for collection of EUR 5 million from an individual person – a citizen of Ukraine – for breach of contract.
Chambers Global 2023 Recommends Ilyashev & Partners in Dispute Resolution for Ukraine
Ilyashev & Partners Law Firm is recommended by the international legal directory Chambers Global 2023 in Dispute Resolution for Ukraine.
Ilyashev & Partners Assist Global Agricultural Trader to Release the Cargo from Ukrainian Port
A team of maritime lawyers from Odesa Office of Ilyashev & Partners Law Firm, assisted one of the world’s largest traders in agricultural products to resolve a dispute with a shipowner and bring out export cargo from a Ukrainian port within the Black Sea Grain Initiative.
Ilyashev & Partners Defend the Interests of a Turkish Shipowner in Ukrainian Port
Ilyashev & Partners successfully defended the interests of a Turkish shipowner in a legal dispute with a charterer and a cargo owner and managed to settle a dispute in the out-of-court manner against a fair amount of compensation due to the actual termination of the charter.
Ilyashev & Partners Represents SE Antonov to Size Russian Aircrafts
By the decision of the investigating judge of the Sviatoshynskyi District Court of Kyiv of March 21, 2022, twelve An-124-100 Ruslan transport aircrafts of the Russian Volga-Dnepr Airlines were arrested in the framework of criminal proceedings opened at the request of the State Enterprise Antonov.
Ilyashev & Partners Supports the Signing of the First 5-year Contract of Antonov with EU and NATO
Ilyashev & Partners Law Firm accompanied the signing of the first 5-year contract of State Enterprise Antonov within the framework of the Strategic Airlift International Solution (SALIS) program. According to the contract, Antonov gives NATO and EU the right to use their planes.
Ilyashev & Partners Wins in Supreme Court for Ukroboronprom’s Enterprise
On 29 June 2021, the Supreme Court upheld the decision of the Northern Economic Court of Appeal issued in favor of the state-owned strategic enterprise Plant 410 Civil Aviation in a dispute with Aviabudprogres LLC regarding the supply of defective spare parts for the repair and upgrading of An-32.
Roman Marchenko – Arbitration Lawyer of the Year in Ukraine
Roman Marchenko, Senior Partner of Ilyashev & Partners Law Firm, won the nomination for the Lawyer of the Year in Arbitration. The winners of Legal Awards 2021 were announced on 4 June 2021.
Criminal Proceedings Launched in Ukraine Against Severstal
The National Police of Ukraine in Odessa launched criminal proceedings under Article 366(2) of the Criminal Code of Ukraine (forgery by an official, which caused severe damage) pertinent to dealers of Severstal-Metiz, Russian group of companies.
Ilyashev & Partners Defends Ukroboronprom’s Subsidiary in a Legal Dispute
Ilyashev & Partners Law Firm has successfully defended interests of state-owned strategic enterprise Plant 410 Civil Aviation that is part of the State Concern Ukroboronprom in a legal dispute wregarding the supply of defective spare parts for maintenance and upgrade of the An-32 aircrafts.
Chambers Global 2021: Ilyashev & Partners — No. 1 for Domestic Dispute Resolution in Ukraine
Ilyashev & Partners Law Firm headed the Chambers Global 2021 rating in the field of Dispute Resolution: Domestic – Ukraine, becoming the only Band 1 firm in this practice.
Supreme Court of Ukraine Ruled to Recover over USD 5 Million in Favor of a Chinese Company
On 10 December 2020, the Supreme Court granted to one of the largest Chinese machinery manufacturers – J.S. Corrugating Machinery Co., Ltd – permission to enforce the arbitral award issued by the China International Economic and Trade Arbitration Commission (CIETAC, Shanghai).
Ilyashev & Partners Among Top-3 Ukrainian Law Firms
Ilyashev & Partners Law Firm has been ranked third in 50 Leading Law Firms of Ukraine 2020, a Ukrainian nationwide law firm ranking.
Benchmark Litigation Europe 2021 Recommends Ilyashev & Partners for Work in Ukraine and Russia
An international research Benchmark Litigation Europe recommends Ilyashev & Partners as a leading law firm in Dispute Resolution in Ukraine and Russia.
Ilyashev & Partners Proved the Illegal Nature of Claims Filed by Ukrainian Sea Ports Authority
The team of Ilyashev & Partners has successfully defended the interests of Danube Shipping and Stevedoring Company LLC in a dispute with the State Enterprise Ukrainian Sea Ports Authority over the use of berth and berthing infrastructure of Mykolaiv Sea Port.
Ilyashev & Partners Is Top-Ranked in Ukrainian Law Firms 2020
According to the results of a research Ukrainian Law Firms 2020. A Handbook for Foreign Clients, published July 28, 2020 Ilyashev & Partners ranked 1st in Litigation for Ukraine. Ilyashev & Partners heads the ranking for the sixth year in a row.
Ukrainian Legal Awards 2020: Ilyashev & Partners – Law Firm of the Year in Cross-Border Litigation
Ilyashev & Partners Law Firm won the Legal Award in the nomination “Law Firm of the Year in Cross-Border Litigation”. The award in this category was bestowed for the first time in the 14-year history of the prestigious professional award in Ukraine.
Ukrainian Manufacturing Company to Reimburse over USD 5 mln to Chinese Engineering Company
Kyiv Court of Appeals upheld the motion filed by the firm’s attorneys for the recognition and provision of the permission for the enforcement in Ukraine of the award of China International Economic and Trade Arbitration Commission (CIETAC, Shanghai) issued against LLC SOUTH CARDBOARD UKRAINE.
Ilyashev & Partners is Recognized as the “Law Firm of the Year” in Litigation for Ukraine
Further to the research carried out by international rating Best Lawyers 2021 Ilyashev & Partners was ranked as the Ukrainian “Law Firm of the Year” in Litigation for Ukraine. The results of the research were published on 09 June 2020.
Ilyashev & Partners Secured Introduction of Provisional Anti-Dumping Duty on Steel Fasteners
The International Trade Practice team of the well-known Ilyashev & Partners Law Firm, headed by Partner Olena Omelchenko, has secured the introduction – for the first time in the last 20 years – of provisional anti-dumping duties on imports to Ukraine of steel fasteners originating in China.
Ilyashev & Partners Defends the Interests of a Greek Company Bilked in the Medical Mask Scam
Ilyashev & Partners represents the victim, a Greek supplier of medical equipment and goods, in the high-profile criminal proceeding instituted by the Main Department of the National Police in Odesa Region into the medical masks supply scam.
50 Leading Law Firms of Ukraine 2025: Ilyashev & Partners Ranked Second
Ilyashev & Partners Law Firm was ranked second out of 50 Leading Law Firms of Ukraine 2025, an annual ranking of Ukrainian law firms. A report of the national research program results was published by Yurydychna Praktyka Publishing House on 4 December 2024.
Ilyashev & Partners Recovers EUR 2 million in Favour of Ukrainian State Enterprise
Ilyashev & Partners Law Firm has successfully represented a state-owned enterprise subordinated to the Ministry of Defence of Ukraine in arbitration against a military equipment seller from the Slovak Republic.
Ukrainian Enterprise Awarded USD 292 Million in Recoveries from Russia
The Commercial Court of Luhansk Region ordered to recover from the Russian Federation over USD 292 million of damages caused to PJSC Alchevsk Coke Chemical Plant, one of the largest coke and chemical enterprises in Ukraine.
Ilyashev & Partners Succeeds in VIAC Arbitration with Foreign Military Equipment Supplier
Ilyashev & Partners Law Firm successfully protected interests of the Ukrainian state exporter of military equipment in an arbitration dispute with a foreign supplier.
Ukraine's 50 Leading Law Firms 2024: Ilyashev & Partners Ranked Second
Ilyashev & Partners Law Firm is ranked second out of 50 Leading Law Firms of Ukraine 2024, an annual ranking of Ukrainian law firms. The results of the annual research program were published by Yurydychna Praktyka Publishing House on 14 December 2023.
Court Allows Creative Group Not to Repay Debt to Russian Creditor
Commercial Court of Kyiv City allowed the Ukrainian debtor – Private Joint-Stock Company Creative – not to repay the debt to the Russian creditor of over UAH 3 million.
Ilyashev & Partners Achieves a Positive Decision for Clients in a Bankruptcy Case worth over UAH1bn
The decision of the Economic Court of Kyiv put an end to the bankruptcy case – the collection of funds from Serhii Tyshchenko will be carried out by creditors in full outside the bankruptcy procedure. The total amount of accounts payable exceeds UAH1bn (US$27m).
Ilyashev & Partners Provides Pro Bono Legal Services to the Strategic State Enterprise of Ukroboronp
Ilyashev & Partners Law Firm and the strategic State Enterprise Plant 410 Civil Aviation (a part of the State Concern Ukroboronprom) have reached an agreement to expand the scope of services that the firm will provide pro bono during martial law period.
Chambers Europe 2023 Recommends Ilyashev & Partners as a Leading Law Firm in Ukraine
Ilyashev & Partners Law Firm is recommended by the authoritative international survey Chambers Europe 2023 in Dispute Resolution, Competition/Antitrust, Employment, and Intellectual Property practices. Survey results were released on 16 March 2023.
Ukrainian Supreme Court Rules on the Competence of Ad Hoc Arbitration
On 12 January 2023 the Supreme Court refused to set aside the arbitral award for collection of EUR 5 million from an individual person – a citizen of Ukraine – for breach of contract.
Chambers Global 2023 Recommends Ilyashev & Partners in Dispute Resolution for Ukraine
Ilyashev & Partners Law Firm is recommended by the international legal directory Chambers Global 2023 in Dispute Resolution for Ukraine.
Ilyashev & Partners Assist Global Agricultural Trader to Release the Cargo from Ukrainian Port
A team of maritime lawyers from Odesa Office of Ilyashev & Partners Law Firm, assisted one of the world’s largest traders in agricultural products to resolve a dispute with a shipowner and bring out export cargo from a Ukrainian port within the Black Sea Grain Initiative.
Ilyashev & Partners Defend the Interests of a Turkish Shipowner in Ukrainian Port
Ilyashev & Partners successfully defended the interests of a Turkish shipowner in a legal dispute with a charterer and a cargo owner and managed to settle a dispute in the out-of-court manner against a fair amount of compensation due to the actual termination of the charter.
Ilyashev & Partners Represents SE Antonov to Size Russian Aircrafts
By the decision of the investigating judge of the Sviatoshynskyi District Court of Kyiv of March 21, 2022, twelve An-124-100 Ruslan transport aircrafts of the Russian Volga-Dnepr Airlines were arrested in the framework of criminal proceedings opened at the request of the State Enterprise Antonov.
Ilyashev & Partners Supports the Signing of the First 5-year Contract of Antonov with EU and NATO
Ilyashev & Partners Law Firm accompanied the signing of the first 5-year contract of State Enterprise Antonov within the framework of the Strategic Airlift International Solution (SALIS) program. According to the contract, Antonov gives NATO and EU the right to use their planes.
Ilyashev & Partners Wins in Supreme Court for Ukroboronprom’s Enterprise
On 29 June 2021, the Supreme Court upheld the decision of the Northern Economic Court of Appeal issued in favor of the state-owned strategic enterprise Plant 410 Civil Aviation in a dispute with Aviabudprogres LLC regarding the supply of defective spare parts for the repair and upgrading of An-32.
Roman Marchenko – Arbitration Lawyer of the Year in Ukraine
Roman Marchenko, Senior Partner of Ilyashev & Partners Law Firm, won the nomination for the Lawyer of the Year in Arbitration. The winners of Legal Awards 2021 were announced on 4 June 2021.
Criminal Proceedings Launched in Ukraine Against Severstal
The National Police of Ukraine in Odessa launched criminal proceedings under Article 366(2) of the Criminal Code of Ukraine (forgery by an official, which caused severe damage) pertinent to dealers of Severstal-Metiz, Russian group of companies.
Ilyashev & Partners Defends Ukroboronprom’s Subsidiary in a Legal Dispute
Ilyashev & Partners Law Firm has successfully defended interests of state-owned strategic enterprise Plant 410 Civil Aviation that is part of the State Concern Ukroboronprom in a legal dispute wregarding the supply of defective spare parts for maintenance and upgrade of the An-32 aircrafts.
Chambers Global 2021: Ilyashev & Partners — No. 1 for Domestic Dispute Resolution in Ukraine
Ilyashev & Partners Law Firm headed the Chambers Global 2021 rating in the field of Dispute Resolution: Domestic – Ukraine, becoming the only Band 1 firm in this practice.
Supreme Court of Ukraine Ruled to Recover over USD 5 Million in Favor of a Chinese Company
On 10 December 2020, the Supreme Court granted to one of the largest Chinese machinery manufacturers – J.S. Corrugating Machinery Co., Ltd – permission to enforce the arbitral award issued by the China International Economic and Trade Arbitration Commission (CIETAC, Shanghai).
Ilyashev & Partners Among Top-3 Ukrainian Law Firms
Ilyashev & Partners Law Firm has been ranked third in 50 Leading Law Firms of Ukraine 2020, a Ukrainian nationwide law firm ranking.
Benchmark Litigation Europe 2021 Recommends Ilyashev & Partners for Work in Ukraine and Russia
An international research Benchmark Litigation Europe recommends Ilyashev & Partners as a leading law firm in Dispute Resolution in Ukraine and Russia.
Ilyashev & Partners Proved the Illegal Nature of Claims Filed by Ukrainian Sea Ports Authority
The team of Ilyashev & Partners has successfully defended the interests of Danube Shipping and Stevedoring Company LLC in a dispute with the State Enterprise Ukrainian Sea Ports Authority over the use of berth and berthing infrastructure of Mykolaiv Sea Port.
Ilyashev & Partners Is Top-Ranked in Ukrainian Law Firms 2020
According to the results of a research Ukrainian Law Firms 2020. A Handbook for Foreign Clients, published July 28, 2020 Ilyashev & Partners ranked 1st in Litigation for Ukraine. Ilyashev & Partners heads the ranking for the sixth year in a row.
Ukrainian Legal Awards 2020: Ilyashev & Partners – Law Firm of the Year in Cross-Border Litigation
Ilyashev & Partners Law Firm won the Legal Award in the nomination “Law Firm of the Year in Cross-Border Litigation”. The award in this category was bestowed for the first time in the 14-year history of the prestigious professional award in Ukraine.
Ukrainian Manufacturing Company to Reimburse over USD 5 mln to Chinese Engineering Company
Kyiv Court of Appeals upheld the motion filed by the firm’s attorneys for the recognition and provision of the permission for the enforcement in Ukraine of the award of China International Economic and Trade Arbitration Commission (CIETAC, Shanghai) issued against LLC SOUTH CARDBOARD UKRAINE.
Ilyashev & Partners is Recognized as the “Law Firm of the Year” in Litigation for Ukraine
Further to the research carried out by international rating Best Lawyers 2021 Ilyashev & Partners was ranked as the Ukrainian “Law Firm of the Year” in Litigation for Ukraine. The results of the research were published on 09 June 2020.
Ilyashev & Partners Secured Introduction of Provisional Anti-Dumping Duty on Steel Fasteners
The International Trade Practice team of the well-known Ilyashev & Partners Law Firm, headed by Partner Olena Omelchenko, has secured the introduction – for the first time in the last 20 years – of provisional anti-dumping duties on imports to Ukraine of steel fasteners originating in China.
Ilyashev & Partners Defends the Interests of a Greek Company Bilked in the Medical Mask Scam
Ilyashev & Partners represents the victim, a Greek supplier of medical equipment and goods, in the high-profile criminal proceeding instituted by the Main Department of the National Police in Odesa Region into the medical masks supply scam.
