CDRC Vienna
:: The Organizers

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Founding Institutions


IBA       VIAC       


The International Bar Association (IBA) is the world’s leading organization of international legal practitioners, bar associations and law societies with a membership of 55,000 individual lawyers and 206 bar associations and law societies spanning all continents.

The Vienna International Arbitral Centre (VIAC) is the premier international arbitration institution in Central and Eastern Europe. The new Vienna Mediation Rules of VIAC can be downloaded here



Association for the Organization and Promotion of the Vienna Mediation and Negotiation Competition
Registered Association Number 034757894
Stadiongasse 2, 1010 Wien   

 Competition Director

Claudia Winkler 

Claudia Winkler is a Negotiation Trainer specialized in training lawyers in the art and science of negotiating – with the other side and for more satisfaction with their own clients. An energetic and creative communicator she blends her variety of top legal educations with her international legal and business experience. Claudia received her Master’s and Doctor’s degree in European and International Law from the University of Linz and her LL.M. from Harvard Law School. Her professional experience reaches from law to government, non-for profit, start-up, university and international institutions. She has worked as the ADR development coordinator with the New York International Arbitration Center (NYIAC) during her time as a Fulbright scholar and is a licensed Mediator in New York. She has been the Director of the IBA-VIAC CDRC Vienna Mediation and Negotiation Competition in Vienna since its inception in 2015. As a trainer ( Claudia has worked with law firms, businesses, conferences and universities in the United States, Europe, Africa, Asia and Australia.

Senior Coordinator 

Lisa El Imshati

Lisa studies law at the University of Vienna, faculty of law of which she will soon graduate. She has always been passionate about mediation as well as cultural exchange on international events.

As internationality has always been a big part of her life, she speaks several languages and has traveled a lot. Throughout her studies, she worked at a tax accountant, was an active member of ELSA (European Law Students Association) and has joined Amnesty International. Her true passion lies in human rights, which she seeks to pursue in the future.

Inspired by her participation in the 13th edition of the ICC Mediation Competition, she volunteered in the 4th Edition of the CDRC in Vienna and has now joined the Organizing Team as Senior Coordinator of the CDRC. As such, she seeks to provide the unique experience she had at the ICC to all the participating students and experts at CDRC.

Organizing COMMITTEE

Alice Fremuth-Wolf (VIAC)

Alice Fremuth-Wolf

Alice Fremuth-Wolf is Deputy Secretary General of VIAC since January 2012. Having studied law at Vienna University (Mag. iur. 1995, Dr. iur. 2002), Utrecht University (1994) and the London School of Economics and Political Science (LL.M. 1998), she served as assistant professor at the Department of Civil Procedure Law at the Law Faculty of Vienna University. Before opening her own practice in 2004, she worked with major Austrian law firms and acted as party representative and arbitrator in international commercial arbitration cases. Alice Fremuth-Wolf has authored articles and books on arbitration and also serves as a lecturer for arbitration at the Law Faculty of Vienna University, where she was coach of the Vienna team for the Willem C. Vis International Commercial Arbitration Moot from 2004-2009. She is also a qualified mediator and is a co-organizer of the CDRC IBA-VIAC Consensual Dispute Resolution Competition in Vienna.


Nikolaus Pitkowitz (VIAC)

Nikolaus Pitkowitz

Nikolaus Pitkowitz is founding partner and head of dispute resolution at Graf & Pitkowitz, Vienna and Vice-President of VIAC. He holds law degrees from University of Vienna (JD and PhD) and University of Sankt Gallen, Switzerland (MBL) and is also qualified and certified as a Mediator. Dr. Pitkowitz has been practising law since 1985. His practice, which has always been very international with a strong focus on CEE, initially mainly comprised trans­actional work in the fields of Real Estate and M&A and soon expanded to international dispute resolution. Nikolaus Pitkowitz is considered one of the preeminent Austrian dispute resolution practitioners.


Gary Birnberg

Gary Birnberg is a mediator and arbitrator specialized in international commercial disputes. He is associated with JAMS and listed with other prominent dispute resolution institutions in Brazil, France, Russia and the USA. A Fellow of the Chartered Institute of Arbitrators and a Florida Supreme Court Certified Circuit and Appellate Mediator, he has served as a neutral on hundreds of cases, including complex commercial, multi-party, multi-lingual, high-stakes, cross-border matters administered by the ICC, ICDR, and other prominent bodies. He currently is Co-Chair of the Mediation Committee of the IBA and is Chairman of the French-American Chamber of Commerce of Florida. He holds degrees from the University of Pennsylvania, Boston University School of Law, and INSEAD, and works in the English, French, and Portuguese languages. .


Tat Lim

Tat is a lawyer, mediator and trainer.  He has postgraduate law, business and construction law degrees from National University of Singapore and King’s College London. His areas of practice as a lawyer and mediator have included banking, corporate, construction, real estate, intellectual property and family law. He is accredited by several mediation institutions, including Singapore Mediation Centre (SMC), CEDR, NMAS, HKMAAL and IMI.  As trainer, he has delivered negotiation and mediation training to judges, lawyers, professionals and business executives across several countries.  He is also an SMC assessor for the accreditation of mediators and involved as a judge in the ICC International Mediation Competition.  He is Chairperson of the Society of Mediation Professionals (Singapore) and Secretary-Treasurer of the Mediation Committee of the International Bar Association (IBA).