
Sayenko Kharenko is frequently instructed on major transactions in the energy sector, acting for foreign investors into Ukraine, as well as government entities and domestic energy companies. The transactional piece has long been a traditional strength, and in more recent years the firm has also developed a robust offering for regulatory law, including aligning Ukrainian legislation with EU requirements. Nazar Chernyavsky has a transactional finance focus to his practice and has advised a number of medium-sized Ukrainian borrowers and municipalities on investment into energy-saving projects. Chernyavsky jointly leads the group with Igor Lozenko, who is well versed in cross-border transactions in the energy market. Nataliia Hutarevych stands out for regulatory law expertise and is the team’s key contact for such matters. Nataliia Khmelovska is likewise recommended.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Sayenko Kharenko's banking and finance and energy practices demonstrate exceptional capability in complex project finance transactions. The team's expertise in navigating wartime financial regulations while structuring sophisticated international financing arrangements sets them apart from competitors. Their ability to coordinate multi-party transactions involving foreign banks, export credit agencies, and renewable energy developers showcases their comprehensive understanding of both financial and sectoral requirements.’
- ‘Igor Lozenko excels in leading landmark transactions, demonstrating strategic vision and execution capabilities essential for complex project finance deals in challenging environments.’
- ‘All legal services were provided within the agreed deadlines. Exceptional quality of legal service including the accuracy of legal analyses and conclusions, consideration of risks and tax implications, as well the clarity and accuracy of legal opinions.’
- ‘The firm’s energy practice stands out due to its extensive experience in all types of high-profile projects and transactions where energy is the core industry - from equipment procurement and facility construction to project finance, loans and intergovernmental agreements. I would also highlight its unparalleled knowledge and understanding of complex industry-related regulations across all segments, including traditional energy and all types of renewables.’
- ‘Nazar Chernyavsky’s unique experience in highly complex and large-scale projects is always a great help to us. He brings confidence and paves the way for success in every project. I would also highlight his ability to consistently ensure reliable, top-level performance.'
Key clients
- Elementum Energy
- European Bank for Reconstruction and Development (EBRD)
- The State of Ukraine
- PJSC UKRNAFTA
Lawyers
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.

Practice head
Nazar Chernyavsky; Igor Lozenko
Other key lawyers
Nataliia Khmelovska; Nataliia Hutarevych
