
Law firm Sorainen continues strengthening its position as the leading tax law expert in the Baltics by welcoming four experienced tax law professionals to its team: two partners, one senior associate and one associate. The new team members significantly enhance Sorainen’s tax expertise in Lithuania and further strengthen the already largest tax capability in the Baltics.
With these additions, Sorainen further consolidates its position as the largest Baltic tax law firm, with the most comprehensive and experienced tax team in the region.
“This is a strategically important step for our Lithuanian and Baltic tax practice. It reflects both the growth of our client work and our ambition to remain the leading tax law firm in the Baltics,” says Saulė Dagilytė, managing partner of Sorainen Lithuania.

Two new tax partners with decades of experience
Sorainen has strengthened its partnership by admitting attorneys-at-law Dr Aistė Medelienė and Dr Mindaugas Lukas as partners.
Dr Aistė Medelienė has more than 20 years of experience in tax and customs law, combining strategic tax advisory with extensive experience in resolving complex tax disputes. Her long‑standing work as tax arbiter at the Commission on Tax Dispute for 11 years and then as distinguished tax advisor and litigator for 15 years has provided her with in‑depth insight into tax administration and risk assessment, enabling her to find the solutions in the most sophisticated tax situations.
“Joining Sorainen was an organic next step for me. Together with my colleagues, we bring strong experience in transactions, tax and customs advisory, private wealth, and tax disputes, which naturally strengthens the team and increases value for clients,” says Aistė Medelienė.
Dr. Mindaugas Lukas brings over two decades of experience in tax law, advising clients on tax disputes, transaction structuring and private wealth planning.
“Sorainen provides a platform where deep tax specialisation meets a strong regional perspective. At a time of increasing tax complexity and uncertainty, this combination is essential for helping clients structure transactions, manage risk and resolve tax controversies effectively across borders,” comments Mindaugas Lukas.

Both Aistė Medelienė and Mindaugas Lukas are recognized by leading legal directories. They are consistently ranked among the top tax experts in Lithuania in the “Chambers and Partners,” “Legal 500,” and “ITR World Tax” directories.
Strengthening the team at all seniority levels
The team is further enhanced by Andrius Venius, who joins as senior associate, and Grasildė Vileikienė, who joins as associate.

Andrius Venius has more than 20 years of experience in tax disputes and customs law and controversies, double taxation issues and environmental taxes. His background includes successful representation in tax disputes and work with tax authorities.
Grasildė Vileikienė focuses on direct taxation, tax compliance, and tax audits. She has participated in both national and international tax projects and represents the next generation of tax professionals within Sorainen’s growing team.
The largest tax team in the Baltics
Following these developments, the firm has become the largest in the Baltics in terms of the number of partners, reflecting its long-term investment in top-tier expertise.
“This expansion clearly demonstrates our Baltic‑wide ambition. By strengthening our tax team across seniority levels, we are responding to growing client demand and building the strongest regional platform for complex, cross‑border tax matters,” says Eva Berlaus, managing partner of Sorainen.

“Lithuania plays a key role in the Baltic business landscape – both as a growing market and as a gateway for companies expanding across the region. Enhancing tax capabilities here supports clients wherever their business decisions take them,” she adds.
Sorainen is a leading business law and tax advisory firm shaping the Baltic business environment.
With over 300 professionals across Lithuania, Latvia, and Estonia, we advise clients on their most complex legal, tax and strategic matters. Our partner-led cross-disciplinary sector teams combine deep industry expertise with cross-border capabilities. Sorainen is consistently ranked among Europe’s leading law firms by Legal 500 and Chambers and Partners. Clients in 67 countries and international law firms trust Sorainen to deliver advice and deep insight into the Baltic market and beyond.