Firm Profile > Marchenko Partners > Kiev, Ukraine

Marchenko Partners

Competition Tier 2

Oleksandr Aleksyeyenko heads the practice at Marchenko Partners, which has been increasingly active handling merger clearances, compliance advice and investigations involving cartels, abuse of dominance, unfair competition and state aid matters. The firm is a pioneer in the state aid field, having acted on the first Ukrainian state aid complaint under the new regulatory regime. The team counts international companies such as McDonald’s and Next Retail among its clients.

Practice head(s):


“The firm has a very decent practice in competition law. It is known for its solid market reputation in the local corporate world. It has very good knowledge of the subject and a very active and open team that is easy to work with and well connected to the Antimonopoly Committee of Ukraine.”

“Oleksandr Aleksyeyenko is a very professional lawyer, who always tries to see the big picture, then acts. Competition is his core area of expertise, and he knows it very well. He is a clever, shrewd and practical lawyer, whose knowledge combines well with his open mind and readiness to learn.”

“The team is very skilled and compact. I believe that the main strength of the competition team is that they are ready to invest their time and efforts into complex and unique projects.”

“The firm seems to be really focused on the client’s needs if compared with other firms, especially the big ones. The team is not afraid of investing in and developing new niches. Overall, the quality of services is just splendid.”

Key clients


Next Retail

Nova Poshta

B.Braun Medical


KMZ Industries

Man Wah Group

Shire / Baxalta

Koss Corporation

Intellectual property Tier 2

Marchenko Partners has a leading practitioner in practice head Oleksandr Aleksyeyenko, who focuses predominantly on IP contracts and disputes, including antitrust cases with a significant IP element. Aleksyeyenko focuses mainly on trade marks and patents, though the firm also handles copyright issues, trade secrets, database matters, domain names and unfair competition. Its work encompasses complex and high-profile cases for international clients such as Next Retail and LafargeHolcim.

Practice head(s):

Key clients

NEXT Retail


EDANA (European Disposables and Nonwovens Association)



Banking, finance and capital markets Tier 3

Marchenko Partners greatly expanded its practice after hiring Roman Shulyar and his team from NOBLES in 2019. Shulyar and Artem Nagdalian lead the team, which is particularly strong in classical debt financing, including bilateral and syndicated credit facilities, as well as the complex restructuring of financial indebtedness and advice on currency control regulations. It is also active in innovative finance transactions including initial coin offerings and crowdinvesting.

Practice head(s):


Roman Shulyar who shows outstanding responsiveness and profound knowledge. He is able to organise the team in an efficient manner to satisfy the client’s needs.

Key clients

Western NIS Enterprise Fund

Export-Import Bank of the United States

Amsterdam Trade Bank N.V.

Dispute resolution Tier 3

Marchenko Partners' compact litigation practice continues to find itself involved in high-value matters for multinational clients. Team head Oleh Marchenko is dedicated solely to the practice of public international law, and he focuses on arbitration, ADR, investor-state disputes, WTO and international trade law, and regulatory and tax litigation. The firm increasingly acts as lead counsel in cross-border matters, though it also is a preferred partner for many international law firms in cases involving international public law.

Practice head(s):

Key clients

Philip Morris International Inc. (USA)

Philip Morris Global Brands Inc. (USA)

Philip Morris Brands Sarl (Switzerland)

Philip Morris Ukraine Private JSC

Lorraine McMahon (France)

Franklin McMahon (the USA and Canada)

Home Group S.A. (Luxembourg)

Morgan Furniture LLC (Ukraine)

LafargeHolcim (Switzerland)

Lafarge Ciment Moldova

Employment Tier 3

Marchenko Partners is particularly skilled at advising on internal policies, employment contracts and termination strategies. Oleksandr Aleksyeyenko, who leads the employment, IP and antitrust practices, is experienced in labour due diligence and contentious matters. Among his impressive roster of multinational clients are British Airways and Ferring Pharmaceuticals.

Practice head(s):

Marchenko Partners is an independent law firm based in Ukraine with expertise in Antitrust & Competition, Banking & Finance, Corporate and M&A, Employment, Intellectual Property, Litigation, Public International Law, Treaty Disputes.


Marchenko Partners and its team members are recognized among leading Ukrainian law firms and experts by various international legal directories, namely Acritas Stars, Best Lawyers, Chambers & Partners, IFLR 1000, Legal 500 EMEA, Who’s Who Legal, World Trademark Review 1000, and others.



Antitrust & Competition

Marchenko Partners is a full-service competition practice. We are a pioneer of state aid complaints in Ukraine. Our team is at the forefront of developments in the Ukrainian competition environment and therefore perfectly positioned to navigate our Clients through the legal challenges that appear in this constantly evolving area of the law.

Our Antitrust & Competition team advises Clients on compliance, abuse of dominance, cartels, merger clearance, procurement, state aid and unfair competition.

We advise on various aspects of state aid and private antitrust litigation including double damages claims.

Key Clients: Alcon Pharmaceuticals, Aspen Pharmaceuticals, B.Braun Medical, Carlsberg, DP World, EDANA, Ferring Pharmaceuticals, Home Group, LafargeHolcim, Man Wah Group, McDonald’s, NEXT Retail, Nova Poshta.


Banking & Finance

Marchenko Partners Banking & Finance team advises on secured and unsecured, term and revolving, bilateral and syndicated credit facilities, restructuring of financial indebtedness, issuance of Eurobonds, private placement of securities, initial public offerings (IPO), ADR and GDR programs, currency control regulations, banking and financial services, and all kinds of securities.

We support founders, business executives and legal counsels in financial, insurance & reinsurance, media & telecommunications, IT, retail & e-commerce, agriculture, mining and metals sectors and represent them in legal matters across the EU, CEE and CIS countries.

Key Clients: American Trade and Finance Company, Amsterdam Trade Bank N.V., Bank Hapoalim, BNP Paribas, Cargill Financial Services International Inc., Credit Suisse First Boston, Deutsche Bank AG, EBRD, EWUB, ING Belgium NV/SA, Lombard Odier, Standard Bank plc, UniCredit Bank Austria AG, US Ex-Im Bank, Western NIS Enterprise Fund.


Dispute Resolution

Marchenko Partners helps multinational companies to resolve their vital regulatory and commercial disputes at the crossing of national and international laws and regulations, government relations, and public policy considerations.

In Dispute Resolution we are dedicated to the practice of Public International Law. Specifically, we focus on:

  • Arbitration & ADR;
  • Investor-State Disputes and Negotiations;
  • WTO and International Trade Law;
  • Commercial, Regulatory and Tax Litigation.

We handle more investor-state disputes against Ukraine than any other national or international law firm. We effectively employ investor-state disputes settlement (ISDS) mechanisms under bilateral and multilateral investment treaties to resolve major regulatory and legal issues, including denial of justice cases, which negatively affect the legitimate interests of multinational companies operating in Ukraine.

We effectively employ ISDS instruments at the early stages of investor-state conflicts to prevent or resolve them amicably. We represent Clients, with outstanding success rate, in regulatory, financial and other disputes, which often involve high stake public policy issues, at the crossing of national and international laws and government relations.

Key Clients: Gilead Sciences, LafargeHolcim, Franklin and Lorraine McMahons, Home Group SA, Philip Morris International, US Ex-Im Bank.



Marchenko Partners provides Clients with refined advice on the most complex legal issues at the intersection of intellectual property, competition, and dispute resolution. Our team specialization in IP management, transactions, and litigation is widely recognized.

Marchenko Partners provides advice on a range of labor-related issues, including terminations, labor contracts, white-collar matters, staff outsourcing, working hours and wages calculation, etc. We have as well extensively dealt with confidentiality, intellectual property protection and non-compete matters for personnel of various seniority.

Our team has thorough experience in labor due to diligence assessment with the corresponding elaboration of the compliance policies best suited for the Clients’ business operation models.

Key Clients: British Airways, Ferring Pharmaceuticals, McKinsey and Company, Morgan Furniture, SALIC UK, Vilomix Holdings.


Intellectual Property

Marchenko Partners lawyers advise on copyright, patents, regulatory data protection and exclusivity, trade secrets, trademarks and unfair competition our Clients from pharmaceutical, agricultural, retail companies and financial institutions.

We historically focus much more on IP transactions and contract work as well as IP-related dispute resolution. Although registration of IP objects is not our main focus, we are from time to time also engaged in complex registration prosecution and strategy.

Key Clients: EDANA, Games Workshop, Koss, Kuhne+Nagel, LafargeHolcim, LKQ, Master & Dynamic, NEXT Retail.


Corporate and M&A

Marchenko Partners provide the full range of corporate legal advice on the structuring, financing, and successful completion of domestic, international and cross-border transactions. We provide our Clients with advice on the creation, operation, and termination of cross-border and domestic joint ventures and strategic alliances agreements.

We have extensive experience of advising our Clients on all day-to-day corporate issues, as well as setting up a business, corporate reorganizations and restructurings, corporate governance, and other legal and regulatory requirements.

Key Clients: Ecosoft, Energo Group, DP World, Ferring Pharmaceuticals, Lafarge Moldova, Martin Bauer Group.


Department Name Email Telephone
Partner, Head of Antitrust & Competition Oleksandr Aleksyeyenko +380444990711
Partner, Head of Dispute Resolution Oleh Marchenko +380444990711
Partner, Head of Banking & Finance Roman Shulyar +380444990711
PR&BD Manager Nataliia Chebysheva +380444990711
Photo Name Position Profile
 Oleksandr Aleksyeyenko photo Oleksandr Aleksyeyenko Partner, Head of Antitrust & Competition  
 Oleh Marchenko photo Oleh Marchenko Partner, Head of Dispute Resolution
 Artem Nagdalian  photo Artem Nagdalian Partner
 Roman Shulyar  photo Roman Shulyar Partner, Head of Banking and Finance  
IBA (International Bar Association)
American Chamber of Commerce (ACC)

Marchenko Partners is paying attention to corporate social responsibility and diversity issues. We continuously support pro bono projects and assist in developing and supporting socially responsible businesses.

We act as legal counsel to Western NIS Enterprise Fund, a $150 million regional fund, a pioneer in Ukraine and Moldova with more than two decades of successful experience in investing in small- and medium-sized companies. Over the last 3 years, our lawyers not only helped WNISEF to launch the Impact Investing Program, but also advised on each of 21 loans granted within the program to the social enterprises from all over Ukraine.

Also, we support The Ukrainian National Rounds of the Philip C. Jessup International Law Moot Court Competition. This is the world’s largest and most prestigious moot court competition in which more than 600 universities participate world-wide. Marchenko Partners supports Ukrainian law students on their way to excellence for more than 10 years.

Marchenko Partners Advise Carlsberg Ukraine on Competition Compliance Matters

Marchenko Partners conducted competition compliance spot check on request of Carlsberg`s central office. In particular, Marchenko Partners reviewed numerous aspects of Carlsberg Ukraine`s commercial operations and provided detailed recommendations on options available for strengthening of the competition compliance system of Carlsberg Ukraine.

21 social loan was granted by WNISEF with Marchenko Partners’ law support

Marchenko Partners have provided legal support to WNISEF within lending two social loans.