Sivan is a partner in our firm’s Litigation and Dispute Resolution practice group. Her primary focus is advising prominent foreign companies in both international and domestic disputes, in addition to providing counsel to leading Israeli industry figures.

Over her decade-long legal career, Sivan has personally handled and been actively involved in numerous large and complex high-profile civil proceedings, class actions, and derivative actions, establishing herself as a seasoned litigator.

With a comprehensive understanding of civil, commercial, and corporate law, as well as expertise in antitrust and competition law, e-commerce, consumer protection, private international law, payment methods, and administrative law, Sivan brings a diverse skill set to her practice.

As an integral part of her role, Sivan offers day-to-day legal advice to prominent multinational

companies, contributing to their strategic decision-making processes.

Earlier in her legal career, Sivan served as an associate at S. Horowitz & Co. During her legal studies, she gained valuable experience in the legal department of the Israel Land Authority and participated in various pro bono initiatives.

Sivan is fluent in both Hebrew and English.


  • Representing an international pharmaceutical corporation in a directive action alleging material flaws in respect of one of the largest transactions ever to occur in Israel a motion to certify a class action (amounting to billions of US Dollars) which alleged defects in its medical product.
  • Representing major global food corporations and a consumer goods company in precedential class actions proceedings, alleging an abuse of monopolistic position through excessive pricing.
  • Representing prominent foreign online trading companies in motions to certify class actions relating to the platforms’ display, violation of the competition law, and conversion fees.
  • Representing and providing legal advice in disputes relating to international jurisdiction and choice of law.


Legal500 Recommended Lawyer
Dispute Resolution: Class Actions (Including Derivative Actions)
2009 The Hebrew University of Jerusalem | LLB
2009 The Hebrew University of Jerusalem | BA (Economics)
2010 Israel
Sivan Volkan-Avisar

Sivan Wulkan Avisar

132 Begin Road, Azrieli Center, Tel Aviv 6702101, Israel
Sivan Volkan-Avisar