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Who's Who Legal
Who's Who Legal

Global Leader

Arbitration 2021

Professional Biography

WWL Ranking: Recommended

Peers and clients say

"Her opening statement in a recent arbitration impressed me very much"
"I highly recommend Lisa, she is a brilliant speaker, lawyer and advocate"
"She is one of the best young arbitrators I know"


Lisa Beisteiner is a founding partner of Zeiler Floyd Zadkovich. Her practice focuses on international arbitration and dispute resolution with a particular focus on energy and construction law. Lisa has more than 10 years of experience in all aspects of commercial and investment arbitration under various sets of rules, including the ICC Rules of Arbitration, the Vienna Rules (VIAC), UNCITRAL Arbitration Rules and ICSID Rules, as well as in ad hoc proceedings. Lisa also frequently sits as arbitrator (including under the ICC, VIAC and DIS rules as well as in ad hoc proceedings) and appears as counsel before the national courts. Prior to co-founding Zeiler Floyd Zadkovich in 2020, Lisa was a founding partner of (since 2014), and previously an attorney at a major Vienna-seated international law firm. Before that she worked as a senior consultant at PwC and gained experience at the European Court of Justice as well as in the in-house legal department of the Austrian legal publishing house Manz.

Lisa regularly speaks at conferences on arbitration-related topics and publishes widely in her field. She is co-chair of the Young Austrian Arbitration Practitioners (YAAP) (2019 and 2020) and member of the YAAP board (since 2018), which co-organises major arbitration conferences such as the Vienna Arbitration Days/GAR Live Vienna. She is a listed arbitrator at VIAC.

Lisa obtained her law degrees (master’s degree (2003) and doctorate (2008), both with distinction) from the University of Vienna and the University of Essex. She was the winner of the Best Graduate Award from the Federal Ministry of Education (2004–2005). 

Lisa is a certified mediator and has been a member of the Austrian Bar since 2011 (bar exam with distinction). Lisa is fluent in English, German and French, and has basic knowledge of Spanish.

Zeiler Floyd Zadkovich is an international commercial law firm with offices in New York, Vienna, London, Mexico City, Chicago, Houston and Sydney. One of the main practice areas the firm specializes in is international commercial arbitration, adding to employment, shipping, litigation, commodities and energy specializations.

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