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Ilyashev & Partners

Ukraine

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Key contacts
Managing Partner, Head of Corporate and M&A Practice: Mikhail Ilyashev
Senior Partner, Head of International Arbitration Practice: Roman Marchenko
Partner, Head of Antitrust and Competition Practice: Oleksandr Fefelov
Quick facts
Partners

6

Other qualified practitioners

45

Total number of practitioners

50+

Languages

English, Ukrainian, German, French, Spanish, Russian

Key practice areas
Banking and finance
Financial and corporate
Corporate and M&A
Restructuring and insolvency
M&A
Energy and infrastructure
Project development
Firm overview

Founded in 1997, Ilyashev & Partners is a leading Ukrainian law firm serving as trusted local counsel in complex cross-border transactions and foreign direct investment into Ukraine. The firm is consistently engaged by international law firms, private equity sponsors, multinational corporations and financial institutions seeking sophisticated Ukrainian law support in strategic, high-value projects.

We focus on complex M&A, Ukrainian asset acquisitions, joint ventures, corporate restructurings and international financing transactions. Our team advises foreign investors at every stage of the investment cycle – from structuring market entry and conducting legal due diligence to securing regulatory approvals and closing transactions. We regularly coordinate multijurisdictional projects and integrate Ukrainian legal advice into global transaction frameworks.

The firm is particularly recognised for advising on investments in regulated and strategically sensitive sectors. We handle antitrust clearance, foreign investment considerations, sanctions and export control compliance, government interface and sector-specific regulatory regimes. By combining transactional, regulatory and disputesensitive expertise, we help clients anticipate enforcement and litigation risks at the structuring stage, enhancing deal certainty in complex environments.

With offices in Kyiv, Kharkiv and Odesa, Ilyashev & Partners brings together more than 50 highly qualified lawyers advising international investors and major Ukrainian businesses across key industries, including energy, infrastructure, agribusiness, manufacturing and technology.

Commercially focused, responsive and internationally aligned, the firm serves as a go-to Ukrainian transactional counsel for foreign investors executing complex projects in Ukraine.

Client feedback
  • "One of the most resourceful and top-quality firms on the market”. 
  • “Certainly one of the top litigation firms”.
  • “The best legal adviser in challenging cases and one of the most resourceful and top-quality full-service law firms on the market”.
Key practice contacts & recent matter highlights

Mikhail Ilyashev
M&A
ilyashev@attorneys.ua 

  • Advising a Ukrainian industrial group on its USD 30 million acquisition of a strategic metallurgical plant from an international seller;

  • Advising the selling shareholder on the USD 20 million disposal of a controlling stake in a Ukrainian bank to a foreign investor;

  • Advising an international group on its USD 200 million corporate control and restructuringof Ukrainian assets.
Other offices

 

Address:
11 Kudryavska Street
Kyiv, 04053
Ukraine
Tel:+380 44 494 1919 Email:Contact Us Web Address:http://www.attorneys.ua

IFLR1000 Sponsored

2026 Edition
Banking and finance
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Sayenko Kharenko
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Sayenko Kharenko
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Linked Reviews
Financial and corporate
Ilyashev & Partners is a full-legal service firm, founded in 1997 in Kyiv. Today it employs more than 150 people and has offices and representatives in Kyiv,  Kharkiv and Odesa. The firm has a notable presence advising foreign international corporations, major Ukrainian companies and financial service institutions.  

 

Highlights  


In restructuring and insolvency, the firm is providing ongoing legal advisory expertise on the insolvency proceedings of Alchevsk By - Product Coke Plant. The firm has assisted in the efforts to gain recovery damages suffered by Ukrainian enterprises due to the ongoing war.  


In project development, the firm advised ESTDEV on a portfolio of donor-funded infrastructure projects in Ukraine with a combined value exceeding €8 million. The mandate covered the construction and reconstruction of residential and public infrastructure in the Zhytomyr region, with the firm providing full legal support across project implementation, regulatory compliance and ITA framework requirements.


Key clients  

Altares Capital, Astound Commerce, PZU Ukraine, BTA Bank, Clearing House Bank, Ukrainian Red Cross Society, Nestle, GrainCorp., Ferrexpo AG, SMK Group, JKX Oil & Gas

 

Testimonials 2026


"The firm excels at converting complex banking and regulatory issues into clear, manageable solutions. Their creativity and technical precision make a real difference when structuring transactions in challenging situations." - Banking and finance

"Under pressure, they deliver quickly without sacrificing quality, and maintain a pragmatic, business-oriented approach throughout. Precision, speed, and commercial awareness are what truly set them apart." - Banking and finance

"Team members are well-versed in both Ukrainian and cross-border corporate matters, with particular expertise in non-standard ownership structures. The advice they provide is practical, well-structured, and immediately implementable, which is critical in ensuring business continuity." - M&A

"What differentiates Ilyashev & Partners is their combination of technical legal expertise and strategic business thinking. The team has a strong understanding of complex corporate and regulatory environments and is particularly effective at navigating matters involving multiple legal and practical considerations. Their advice is always solution-oriented and tailored to the client’s objectives rather than purely theoretical." - M&A

"The true difference between Ilyashev & Partners and their competitors is their ability to handle regulatory advisory, complex disputes, and energy and project development sectors. In high-risk environments, the team provides investors and market participants with commercially based, strategically structured solutions that they can directly implement. Another key strength is their capacity to handle matters with sector-wide impact. Their position on the green tariff regime and imbalance settlement mechanism went beyond the needs of one client and addressed the whole renewable energy market in Ukraine. The firm also has a strong focus on responsiveness, pragmatism, and commitment. The team demonstrates excellent coordination across legal, regulatory, and enforcement aspects, ensuring consistency from advisory through claims and enforcement. Among firms in this industry, they stand out due to their combination of technical excellence, strategic thinking, and real-world effectiveness." - Project development

"What sets Ilyashev & Partners apart is their ability to handle complex infrastructure and investment projects with confidence, precision and a clear commercial focus. They understand how large projects work in practice and provide solutions that are both legally strong and commercially realistic." - Project development

"We value Ilyashev & Partners for their deep understanding of complex industrial and infrastructure projects and their ability to work effectively in a challenging business environment. The team demonstrates a high level of professionalism, responsiveness and commercial awareness. Their advice is always practical, well-structured and focused on achieving business objectives rather than providing purely theoretical legal analysis. They are able to manage sophisticated matters and regulatory aspects while maintaining clear communication and strong project coordination throughout the engagement." - Project development

"What I appreciate about Ilyashev & Partners is that they look at insolvency matters from a practical business perspective. This is not just a formal legal process. They understand what needs to be achieved and build a strategy around protecting assets and improving recovery, rather than simply following a procedure." - Restructuring and Insolvency

"Using his deep legal expertise and clear commercial perspective, Mikhail Ilyashev is exceptional at structuring complex matters and finding practical solutions in challenging situations. In addition to being highly responsive and maintaining strong control over mandates, he consistently offers precise, well-judged advice aligned with the goals of his clients." - Mikhail Ilyashev

"Mikhail Ilyashev is a lawyer you can rely on in difficult situations. He keeps a clear head, understands the bigger picture and knows how to move a matter forward when things are not straightforward. His advice is measured, practical and always focused on achieving a result." - Mikhail Ilyashev

"Oleksandr Fefelov demonstrates strong strategic thinking and deep expertise in complex corporate and transactional matters. He is highly effective at structuring sophisticated issues, anticipating risks and delivering practical solutions aligned with business objectives. He is also particularly strong in coordinating complex projects and maintaining a clear, solution-oriented approach throughout the process." - Oleksandr Fefelov

"A unique characteristic of Mikhail Ilyashev is his ability to identify complex legal issues within regulatory frameworks and turn them into actionable strategies, especially when involving state agencies or regulated industries." - Mikhail Ilyashev

"Roman Marchenko is exceptionally strong in managing complex investment and infrastructure matters where legal, commercial and strategic issues are closely interconnected. He has a rare ability to quickly understand the core of a problem, assess risks realistically and build a clear strategy even in very challenging situations." - Roman Marchenko

"Mikhail Ilyashev demonstrates strong strategic judgement and a clear understanding of how large industrial and infrastructure businesses operate in practice. He is particularly effective in complex negotiations, risk management and handling matters that require coordination between business, regulatory and legal considerations. His advice is always balanced, pragmatic and focused on protecting the client’s long-term interests. He is also highly skilled in managing sensitive situations and maintaining constructive communication between all parties involved in a project." - Mikhail Ilyashev

"Roman Marchenko brings a steady and well-judged approach to complex insolvency matters. Despite the fact that there are many parties involved in these cases, he is able to set a direction early on and keep the process under control." - Roman Marchenko
Deal Highlights
9 results9 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Creative Group - Restructuring
2020-01-09
Ilyashev & Partners
Ukraine
Restructuring
Roman Marchenko
Creative Group
Insolvent entity
Sumykhimprom - Restructuring
2021-02-25
Ilyashev & Partners
Ukraine
Restructuring
Roman Marchenko
Sumykhimprom
Insolvent entity
Salute Hotel - Insolvency
Ilyashev & Partners
Ukraine
Insolvency
Mikhail Ilyashev
Salute Hotel
Debtor
Indumet SA - Insolvency
Ilyashev & Partners
Ukraine
Insolvency
Roman Marchenko
Indumet SA
Creditor
Creative Group - Insolvency
Ilyashev & Partners
Ukraine
Insolvency
Roman Marchenko
Creative Group
Debtor
Antonov State Enterprise - Joint venture
Ilyashev & Partners
Ukraine
Joint venture
Roman Marchenko
Antonov State Enterprise
Joint venture partner
UDP - M&A
2021-11-01
Ilyashev & Partners
Ukraine
M&A
Mikhail Ilyashev
UDP
Investor
Shareholders of Zavalyevsky Graphite Plant - M&A
2021-08-01
Ilyashev & Partners
Ukraine
M&A
Mikhail Ilyashev
Shareholders of Zavalyevsky Graphite Plant
Seller
LU Invest - M&A
2021-05-01
Ilyashev & Partners
Ukraine
M&A
Mikhail Ilyashev
LU Invest
Seller
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