Roman Zykov has acted as an expert witness on Russian civil, corporate, bankruptcy, and procedural law in the proceedings before the Eastern Caribbean Supreme Court in the High Court of Justice Virgin Islands and the District Court of Limassol.

The cases related to various claims brought by a Russian bank against various debtors and their assets in several jurisdictions.

Roman Zykov frequently acts as an expert witness on Russian commercial, corporate, energy, bankruptcy, sanctions, and other laws before foreign courts, arbitral tribunals, and dispute adjudication boards.