About

Provided by IMPACTA LAW

Dispute Resolution practice at IMPACTA LAW is represented by the following departments – International Arbitration, Cross-Border Litigation, Domestic Litigation and White-Collar Crime. Our team is one of the largest on the Ukrainian legal market in terms of capacity. It consists of 4 internationally recognised partners and more than 20 experienced lawyers who deliver comprehensive legal advice to international and domestic clients operating in energy, aviation, manufacturing, chemicals, retail, and banking. 75% of our clients are from private sector.

Our team represents clients in arbitration proceedings at all stages – from their initiation to the final award, as well as in arbitral award enforcement. We have unrivaled expertise in arbitration proceedings as representatives of the parties, arbitrators and experts. We represented clients in more than 100 commercial and investment arbitration proceedings under the rules of the major international arbitration centers.

The Cross-Border Litigation team at IMPACTA LAW acts for international and Ukrainian clients in multi-jurisdictional disputes spanning across most of the countries where Ukrainian businesses have presence. We act as a lead counsel, co-counsel on Ukrainian issues or Ukrainian law experts.

We also represent clients before Ukrainian courts and state authorities in disputes originating from corporate, employment, tax, antitrust, banking and finance, IP issues.

Chambers Review

Provided by Chambers

Dispute Resolution: Domestic - Ukraine

4
Band 4

What the Team is Known For

The team is noted for its market-leading track record in international arbitration, acting for clients in international commercial arbitration as well as assisting with investment arbitration disputes. The law firm is active in cross-border litigation. The legal practice also advises on domestic matters, including commercial and shareholder disputes, as well as assisting with the enforcement of arbitral awards. The team is regularly instructed by large local clients from industries such as energy, pharmaceuticals and agriculture. The law firm also represents international companies from a variety of economic sectors. As of January 2026, INTEGRITES has rebranded and became IMPACTA LAW.

Work Highlights

  • IMPACTA LAW acted for a Cargill group on 27 LCIA arbitration proceedings arising from the financing arrangements and related security instruments with the Ukrainian group of companies involved in the production of juice concentrate.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers

Olena Perepelynska
1
Olena Perepelynska
1
Band 1
Head of international arbitration Olena Perepelynska is a market-leading international arbitration practitioner. She is also well regarded for her experience in cross-border litigation.

Olena Perepelynska deeply understands all details of procedural issues and is able to describe the full matter and realistic probability of our result.

Olena Perepelynska is a person of strong integrity, a disciplined arbitrator and an experienced arbitration practitioner who is well-versed in the latest developments in the field.

Dmytro Marchukov
2
Dmytro Marchukov
2
Band 2
Head of cross-border litigation Dmytro Marchukov is recognised for his work on litigation that spans multiple jurisdictions, including Cyprus and the BVI. He is also involved in international arbitration cases.

Dmytro Marchukov is a great lawyer and I would highly recommend him as he is very responsive.

Dmytro is an excellent lawyer who excels in international and cross-border disputes.

Serhii Uvarov
3
Serhii Uvarov
3
Band 3

Serhii Uvarov assists with a range of cross-border litigation, as well as international arbitration cases.

Serhii Uvarov is a super specialist who accompanies us and answers all our questions.

Oleksandr Onishchenko
4
Oleksandr Onishchenko
4
Band 4

Oleksandr Onishchenko assists regional clients with debt collections, tax litigation and defamation disputes. He is also well placed to act on disputes in the real estate sector.

Oleksandr stands out for his strategic thinking, ability to handle complex and precedent-setting disputes and clear, business-focused communication, ensuring that our priorities are fully understood.

Krystyna Khripkova
U
Krystyna Khripkova
U
Up and Coming

Krystyna Khripkova is an up-and-coming partner who has experience in acting for clients on international arbitration, including proceedings under LCIA rules.

Krystyna Khripkova is a hard-working lawyer.

Ranked Lawyers at
IMPACTA LAW

Provided by Chambers
Filter by
Band

Ukraine

Dispute Resolution: Domestic

Oleksandr Onishchenko
4
Oleksandr Onishchenko
4
Band 4
Dispute Resolution: International

Olena Perepelynska
1
Olena Perepelynska
1
Band 1
Dmytro Marchukov
2
Dmytro Marchukov
2
Band 2
Serhii Uvarov
3
Serhii Uvarov
3
Band 3
Krystyna Khripkova
U
Krystyna Khripkova
U
Up and Coming

Members

Provided by IMPACTA LAW

Anna Kozyrieva

Daryna Vasylieva

Dmytro Marchukov

Dmytro Marchukov

Head of Department

Kristina Shyposha

Mykola Nychyporuk

Mykola Yerema

Nadiya Mykiyevich

Oleksandr Onishchenko

Oleksandr Onishchenko

Head of Department

Olena Perepelynska

Olena Perepelynska

Head of Department

Clients

Provided by IMPACTA LAW

Euronet Ukraine

Lantmannen AXA

ArcelorMittal

Cargill

Eurocape

Ferrero Ukraine

Glenmark Pharmaceuticals

Linde

MHP

Metro

Naftogaz of Ukraine

OTIS

Scatec

Togliattiazot

UkrKhimTransAmmiak

Ukrenergo

Industries

Provided by IMPACTA LAW

Agriculture

Asset Tracing

Aviation

Aviation

Banking & Financing

Cryptocurrency

Defence and Military

Energy

Pharma

Private Client

Renewables

Retail and Distribution

Transport