The full-service law firm Asters advises energy companies, international investors, financial institutions and project developers on electricity generation, renewable energy, oil and gas, energy infrastructure and natural resources projects. Its expertise covers project development and financing, licensing, regulatory compliance, environmental matters, construction contracts, energy-sector acquisitions and investment protection. Among its disclosed recent instructions, the firm advised Norwegian renewable energy developer Fenix Repower AS on land-related legal matters associated with the development of greenfield renewable energy projects in Ukraine. The mandate involved addressing land issues essential to the implementation of new generation capacity and foreign investment in the Ukrainian energy sector. The practice is co-headed by Armen Khachaturyan, Senior Partner, and Yaroslav Petrov, Partner, with Marta Halabala, Counsel, advising on energy regulation and project development.

Dentons has a diversified energy practice spanning renewable generation, conventional energy, natural resources, electricity market regulation, project development and energy finance. The team advises investors and developers on project structuring, land rights, construction, grid connection, power purchase agreements and regulatory compliance. Its recent work includes comprehensive support for the development and commissioning of an approximately 63 MW wind farm, legal analysis for a proposed 400 MW green hydrogen production facility, and advice on integrating solar generation and battery storage with an existing wind power project. Maksym Sysoiev, Head of Energy and Natural Resources, focuses on energy regulation, renewables, infrastructure and project development. Oleg Batyuk and Adam Mycyk contribute transactional expertise, while Natalia Levchuk, Oleg Kuchanskyy and Polina Reshetniak advise on land, construction, permitting and energy regulation.

Renowned for its energy expertise, Ukrainian law firm EVERLEGAL advises international investors, renewable energy developers, power producers and energy infrastructure companies on M&A, project development, financing, regulatory compliance and energy-related disputes. The practice has substantial experience in wind and solar energy, including the structuring of investment transactions, joint ventures, power purchase arrangements, grid connection, land acquisition and the regulatory requirements applicable to renewable energy projects. During the research period, the team handled matters involving the acquisition and disposal of wind power portfolios, development-stage wind farm joint ventures, and corporate and regulatory support for operating solar power plants. The firm’s expertise further extends to war-risk insurance for renewable energy assets, covering physical damage, business interruption and force majeure, as well as capital markets and financing arrangements affected by Ukrainian foreign exchange restrictions. Andriy Olenyuk is Lead partner of the Energy & Natural Resources practice. Yevheniy Deyneko, Managing Partner, supports the Energy practice on the most complex multi-disciplinary mandates.

LCF Law Group advises energy companies, developers and investors on regulatory disputes, contractual obligations, corporate transactions and energy infrastructure projects. The practice addresses challenges to decisions of the National Energy and Utilities Regulatory Commission, disputes concerning electricity market settlements and the Guaranteed Buyer, energy imbalances and the legal consequences of operating facilities affected by the war. Its sectoral work includes advising DTEK ZahidEnergo on regulatory and contractual disputes. The firm’s multidisciplinary approach combines litigation with corporate and regulatory advice for renewable energy and conventional generation projects. Anna Ogrenchuk, Iryna Kobets, Sergiy Benedysiuk and Ivan Bondarchuk are key practitioners, covering energy litigation, investment structuring and regulatory matters.

Redcliffe Partners advises international investors, financial institutions, energy producers and infrastructure businesses on energy regulation, investment structuring, oil and gas projects, renewable energy financing and strategic infrastructure development. A landmark mandate involves advising the U.S. Department of the Treasury and DFC on the United States–Ukraine Reconstruction Investment Fund, established under a bilateral economic partnership agreement covering natural resources, energy and infrastructure investment. Another major client is Ukrgasvydobuvannya, the principal natural gas production company within Naftogaz Group. The practice is headed by Albert Sych and Dmytro Fedoruk, partners with substantial experience in the energy sector, including long-standing involvement in key projects in Ukraine.

Sayenko Kharenko advises energy producers, international investors, financial institutions and infrastructure developers. The practice maintains strong capabilities across three key areas: renewable energy projects, energy efficiency initiatives, and energy dispute resolution. Its recent work includes advising on project financing for the EUR 450 million expansion of DTEK’s Tyligulska wind farm, The firm also advised the EBRD on a loan for the construction of a privately owned greenfield biofuels project, one of the bank’s notable wartime investments in Ukraine’s renewable energy sector. Its restructuring expertise includes advising an ad hoc committee of noteholders on the restructuring of senior secured PIK toggle Eurobonds issued by DTEK. The practice is led by Partners Igor Lozenko and Nazar Chernyavsky, with Nataliia Hutarevych (promoted to Counsel) focusing on energy regulation, environmental law and complex energy projects. Integrated legal solutions for energy sector ensure Oleksandr Nikolaichyk (large-scale M&A transactions, including acquisition and sale of oil & gas, electricity distribution and energy generation companies), Oleksiy Koltok and Olena Sukmanova (domestic energy disputes and conflicts), Olexandr Droug (international arbitration and cross-border litigation), Volodymyr Sayenko (merger clearances and competition law aspects), and Sergiy Smirnov (criminal defence matters).

ADER HABER has a substantial energy practice advising major oil and gas producers, electricity generators, energy traders and infrastructure operators on regulatory disputes, commercial litigation, insolvency, creditor protection and sector-specific compliance. The firm represents JSC Ukrnafta in the bankruptcy of PJSC NPK-Galychyna and defended JSC Ukrtatnafta, operator of the Kremenchuk oil refinery, against a claim of an electricity supply operator. Another significant mandate involves representing the Gas Transmission System Operator of Ukraine in challenging demands issued by the State Audit Service following an external audit, addressing the regulatory and financial implications for critical gas transmission infrastructure. The practice is headed by Tetiana Daniltseva, Partner, who specialises in energy regulation and disputes.

Ukrainian law fimm Altelaw&Sempra (Altelaw and Sempra law firms joined in 2025) has an established energy practice covering electricity market regulation, conventional and renewable generation, distributed energy resources, energy storage, licensing and regulatory disputes. The firm advises energy producers, traders, investors and international development organisations on market entry, project development, grid connection, contractual arrangements and compliance with Ukrainian and EU energy legislation. Its portfolio includes providing full-cycle legal support for a major Ukrainian logistics group’s entry into the electricity market, including licensing, registration as a market participant, agreements with market operators and arrangements for participation in balancing and ancillary services markets. The team also advised on a German-funded initiative to modernise municipal district heating through combined heat and power installations. The firm’s contentious experience includes successfully challenging regulatory fines imposed on an electricity trader. Olga Savchenko, Senior Partner and Head of Energy, leads regulatory, transactional and contentious energy matters. Igor Retivov, Partner, contributes to electricity market entry and operational regulation, while Mykhailo Zhurkevych, Senior Associate, focuses on energy regulatory litigation.

EY Ukraine advises energy investors, developers and public-sector stakeholders on energy infrastructure, sector regulation, financing and investment projects. The practice combines legal and regulatory expertise with financial and tax advisory capabilities, particularly in projects involving renewable energy, energy-market reform and infrastructure development. Its work addresses investment structuring, commercial arrangements, regulatory requirements and the legal implications of Ukraine’s evolving energy market. Borys Lobovyk leads the practice.

Ilyashev & Partners advises energy companies, investors, industrial suppliers and infrastructure developers on energy regulation, project contracts, international arbitration, competition and commercial disputes. The firm represents JKX Oil & Gas plc in Ukrainian proceedings concerning the recognition and enforcement of an investment arbitration award. It also acts as a Ukrainian law expert in LCIA arbitration involving Nordwind Trade SA, a Swiss energy trader, and advises Smart Energy Holding a.s. on cross-border contractual structuring for the supply of renewable energy equipment. Mikhail Ilyashev, Managing Partner, leads the energy practice. Partner Valeriia Gudiy focuses on regulatory, commercial and dispute-related matters in the energy sector, including renewable energy and electricity market regulation.

Being enlisted to handle a diverse range of mandates for sectoral clients, Kinstellar advises international investors, energy companies, state-owned enterprises and infrastructure operators on energy regulation, corporate governance, investment structuring, construction and disputes. The practice is closely involved in projects supporting the resilience and reconstruction of Ukraine’s energy infrastructure, combining transactional, regulatory and contentious expertise. The firm advises the European Bank for Reconstruction and Development on corporate governance matters involving major Ukrainian state-owned energy enterprises, including Ukrenergo, Ukrhydroenergo and Ukrnafta, and on developing a model charter for energy-sector SOEs. Partner Olena Kuchynska has particular focus on energy, oil & gas and environmental sectors. Illya Muchnyk, partner of banking, finance and capital markets, and Oleg Matiusha, partner, specialises in infrastructure, construction and transportation matters, are involved in advising energy clients.

KPMG Law advises energy companies, investors and public-sector stakeholders on energy regulation, investment structuring and the legal framework governing electricity, renewable energy and oil and gas projects. Its expertise covers production sharing agreements, power purchase agreements, regulatory approvals, renewable energy support mechanisms, grid connection and energy market reform. The practice combines transactional and regulatory advice with an understanding of EU energy developments and cross-border investment requirements. Yuriy Katser leads the practice. Oleksii Masniev is another important team member.

Sokolovskyi & Partners has an energy practice focused on renewable generation, electricity market regulation, energy infrastructure and the legal protection of energy-sector investments. The team advises generators, developers and market participants on the regulatory framework governing solar and wind power, energy storage, electricity sales and balancing arrangements. Its work encompasses project structuring, licensing, land and construction requirements, electricity market contracts and disputes with regulators and commercial counterparties. The practice also addresses the legal implications of distributed generation, energy storage systems and the development of decentralised electricity infrastructure, including the interaction between energy regulation, taxation and investment requirements. Vladyslav Sokolovskyi, Managing Partner, leads the practice. Ivan Balytskyi, Partner and Head of Bankruptcy and Crisis Asset Management, specialises in protecting energy-sector assets. Ihor Shevchenko focuses on technology-related aspects of energy operations, intellectual property and digital processes.

AMISOS & Partners develop its practice as a Kyiv-based boutique law firm focusing on cross-border investments, renewable energy, infrastructure and construction projects. The practice primarily advises foreign energy investors and EPC contractors, with particular experience representing Turkish companies entering, developing projects and operating in the Ukrainian market. The team is head by Doğuş Gülpınar.

Antika Law Firm advises energy companies, utilities and industrial businesses on energy infrastructure, renewable energy, energy supply contracts, grid connections and sector-related disputes. The team also advised on upgrades to electricity supply capacity, the installation of distribution networks and electric vehicle charging infrastructure, and connections to gas and electricity distribution systems. The practice is led by the firm’s senior partner, Dr. Oleksiy Kot, and supported by the senior team of Oleksander Tretiakov, Mykhailo Voitsekhovskyi, and Vasyl Sheretko.

Pragma Consulting Group specialises in regulatory consulting, government relations and legislative development for the mining and natural resources sectors, with a particular focus on strategic and critical minerals, subsoil access and environmental regulation. Its work includes supporting regulatory changes concerning the classification and development of strategic mineral deposits, the use of forest land for geological exploration and extraction, and the implementation of EU-aligned rules for critical raw materials. The firm’s achievements include contributions to the regulatory framework reflected in Cabinet of Ministers Resolutions No. 845 and No. 721 of 2025 and legislation concerning Ukraine’s mineral resource base. In 2025, Pragma initiated the establishment of the Subsoil Use Committee at the Ukrainian Chamber of Commerce and Industry, bringing together 15 companies. Partner Alona Shulima, is a key figure in the firm’s extractive industries regulatory work. The key team members are senior counsel Olena Yaliieva, with deep expertise in EU environment and natural resources regulation, and executive director Nataliia Hannytsia, who specializes in regulatory monitoring issues.

Kharkiv-headquartered law firm Shkrebets & Partners is a trusted advisor to power generation and distribution companies in north-eastern Ukraine. The team has a substantial energy disputes practice representing electricity generators, district heating companies, utilities and infrastructure operators in complex contractual and regulatory proceedings. The practice covers natural gas supply and distribution, electricity balancing, transmission and dispatch services, energy metering and disputes over market settlements. Its portfolio includes representing Kharkiv CHPP-5 in disputes with Naftogaz Trading concerning natural gas payment obligations. The firm also represents the generator in disputes with Ukrenergo concerning balancing electricity and ancillary services, as well as proceedings against gas distribution operators over recalculation of charges. Andrii Syvak, Partner, heads the practice.

AMV Law Offices advises clients in the electricity, oil and gas, renewables, mining and natural resources sectors, with a particular focus on investment protection and complex dispute resolution. The firm’s expertise covers domestic and international arbitration, disputes arising from EPC contracts, asset expropriation, internal investigations and recovery of war-related damages. The team assists energy companies in documenting losses, protecting investments and pursuing compensation through available legal mechanisms. Olexander Martinenko, Managing Partner, and Danylo Volkovetskyi, Counsel, lead the practice, supported by Mariana Antonovych, Managing Associate, whose expertise includes cross-border disputes and compensation for damage caused by russian aggression.

Gramatskiy & Partners continues to grow its expertise in energy law, encompassing renewable energy, regulatory compliance, and energy infrastructure projects. The practice is active in the legal structuring of energy-related investments and contractual relationships involving industrial energy equipment. The firm advised OPOS LLC on the land use requirements for installing solar power plants, including the procedure for changing the designated use of relevant land plots. It also assisted Danfoss LLC with contractual arrangements involving Ukrinterm for the manufacture of individual heating substations, addressing the commercial and technical obligations associated with the supply of specialised energy equipment. Ernest Gramatskiy, the firm’s founder, leads the practice.

Wolf Theiss advises international energy traders and investors on Ukrainian energy market entry, regulatory compliance, corporate operations and cross-border energy transactions. The practice is particularly active in natural gas trading, transportation and storage, addressing the regulatory requirements that govern access to Ukraine’s energy infrastructure. Recent work includes advising Greek energy trader Enerwave Société Anonyme on entering the Ukrainian market, including registration as a wholesale energy market participant and completion of procedures with the Gas Transmission System Operator of Ukraine and Ukrtransgaz to access gas transportation and storage services. Sergii Zheka heads the energy practice, focusing on sector regulation and energy-related corporate matters, while partner Taras Dumych leads strategic cross-border engagements and Olena Kravtsova contributes corporate and regulatory expertise.

Our market research highlights law firms and specialists who, despite not having provided information for this study, remain prominent market players. Information obtained from public sources and recommendations from the professional community emphasize the firm’s market presence.
The firms marked with an asterisk (*) have not submitted information for the current research.

AEQUO* is noted for its strong expertise in strategic energy disputes, and a well-established track record of supporting state enterprises in the oil and gas sector.

Arzinger* is known for advising on power regulations, antitrust, compliance matters, with senior partner Timur Bondaryev maintaining a strong presence in the professional community. The firm is also noticed on the dispute front in the energy sector.

Ukrainian law firm AVELLUM* is recognized for its strong transactional expertise, handling complex finance, restructuring, and M&A projects in the energy sector.

Ukrainian law firm AZONES* brings in-house experience and deep expertise in the retail petroleum, gas, and LPG markets. Mykhailo Tretiakov, managing partner, is the main contact.

Baker McKenzie* is a trusted advisor to leading international and domestic market players, state authorities, international banks, and investment institutions. The firm supports multi-jurisdictional energy deals and guides energy and infrastructure clients on mitigating the impacts of Russia’s invasion. Andrii Moskalyk advises on EMI projects, including PPPs, PSAs, licensing, trade, storage, project finance, and M&A transactions.

CMS Cameron McKenna Nabarro Olswang* is traditionally preferred by international energy majors, providing regulatory guidance and expertise in structuring oil and gas projects, energy trading, infrastructure, and renewable energy development. Kyiv office managing partner Vitaliy Radchenko is a very well-known name on the energy market.

IMPACTA LAW* (until December 2025, the team operated under the INTEGRITES brand) is widely recognized for its expertise in renewable energy, project finance and development, regulatory matters, and ongoing contributions to shaping energy legislation in Ukraine. Managing partner Dr. Oleksiy Feliv is noted for his well-established name in the renewable energy sector and strategic guidance of subsequent projects.