ADER HABER is a leading independent Ukrainian law firm with an international focus, providing comprehensive legal counsel to businesses, financial institutions, public-sector organisations and international institutions.

Founded in Kyiv in 2006, ADER HABER has grown over 20 years into one of Ukraine’s four leading law firms and is ranked among the leading firms in nine practice areas by Legal 500 EMEA 2026. Over the years, the team has developed deep expertise in Ukrainian law and the capability to advise on complex cross-border projects connecting the Ukrainian and European markets.

ADER HABER is one team serving clients across two markets – Ukraine and Europe – from offices in Kyiv and Warsaw.

The firm’s clients include organisations whose decisions shape markets and entire industries: major Ukrainian and international companies, state-owned enterprises, financial institutions, public-sector organisations, international financial institutions and donor programmes. ADER HABER has extensive experience working with international financial institutions and organisations, including the EBRD, USAID and the World Bank Group, as well as other international organisations and donor programmes.

ADER HABER’s expertise covers dispute resolution, insolvency and restructuring, regulatory advisory, corporate and M&A, real estate and construction, agribusiness, energy, business protection, criminal law, tax and employment, as well as Banking & Finance, Capital Markets & Insurance Regulation and Government Affairs, which operates as a separate platform with a specialised team.

ADER HABER lawyers represent leading companies of the Ukrainian economy and international corporations before courts of all instances in Ukraine, as well as leading international arbitration institutions. One of the team’s key strengths is its ability to accurately assess and forecast the development of litigation, based on extensive experience in dispute resolution and in-depth analysis of judicial practice.

In the real estate sector, ADER HABER provides strategic legal support for the real estate portfolios of leading Ukrainian and international brands, including asset acquisitions, leasing and the optimisation of ownership structures. For each project, the firm assembles a tailored team of lawyers with the relevant sector expertise, ensuring prompt, integrated and effective support that reflects the specific requirements of the mandate and the client’s needs.

The firm advises on complex regulatory matters and disputes in the financial sector, ranging from major regulatory investigations and urgent court measures to intellectual property disputes, anti-money laundering matters, judicial challenges to regulatory decisions and sanctions-related issues. The team has advised leading international FinTech and payments companies, financial institutions deploying new technologies, and fast-growing businesses on some of their most sensitive matters.

In addition to the services provided across the firm’s core practices and specialisations, ADER HABER advises on matters that have become critical as a result of the full-scale aggression by the Russian Federation, including business relocation, asset protection and recovery, debt restructuring, taxation and insurance during martial law, employment law, mobilisation and migration.

ADER HABER lawyers also provide analytical and practical advice on business operations in force majeure circumstances and on Ukraine’s post-war recovery and reconstruction.