X-ON-X
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X-ON-X has a focus on business launches and the scaling of operations, with its tax offering playing a key role for Ukrainian companies expanding abroad, as well as international clients seeking advice on the fluid Ukrainian tax law matrix. Oleg Kotliar leads the practice group and has strong professional and legal experience in the finance sector. Viktoriia Kotliar is the other key contact, and has experience assisting companies and HNWIs.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘X-ON-X are fast, responsive, and very hands-on. They don’t just advise and step back — they take real ownership of the matter and stay proactive throughout. I’d especially recommend them for international work: they’re great coordinators, always keeping communication consistent, which made me feel supported at every stage. Their key strength is understanding the commercial side of the business. X-ON-X always place their advice in the business context, making it practical and aligned with a broader strategy.’
- ‘Oleg Kotliar and Viktoriia Kotliar form a strong leadership team at the firm. Both are pragmatic, highly skilled international lawyers. I trust their judgment when it comes to decision-making at a strategic level. The associates on their team also deserve recognition — diligent, responsive, and consistently deliver, even under pressure. Overall, I value X-ON-X for their genuine commitment and reliability in handling complex matters.’
Key clients
- Bettter Us
- Bazhane
Work highlights
Advised Ukrainian upcycling clothing system Bettter on expanding its reach and entering the European and US markets and establishing international partnerships and collaborations.