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