Sylwester Pieckowski

International Partner
+48 (22) 520-5000
ul. Emilii Plater 53
00-113 Warsaw
  • Overview
  • Experience
  • Credentials
  • Insight

Sylwester Pieckowski heads the Warsaw office's litigation and ADR practice. His practice focuses on business dispute resolution through negotiation, mediation and arbitration. He has broad international business related experience based on more than 20 years of practice in Polish foreign trade, gained when counseling for PHZ Pezetel, and U.S. corporate and business law, when serving as Chief Legal Officer for Melex USA, Inc. Mr. Pieckowski also practices in international public law and trade law, aviation law, products liability, commercial arbitration and alternative business dispute resolution as well as Polish civil and business law.

Publication Highlights

Business Mediation
  • Represented the defendant in a U.S. anti-dumping investigation and antitrust litigation against Polish made Melex golf cars (1983-1996). 
  • Represented Polish aviation companies as defendants in U.S. products liability lawsuits resulting from plane crashes and incidents (M-18 Dromader, PZL-3S engines, M-26 Iskierka, PZL-104 WILGA) (1983-1996). 
  • Acted as the Polish negotiator of technology transfer and license agreements with Canadian aircraft and aircraft engine manufacturers. 
  • Represented a major Polish car producer in products liability negotiation and settlement with a German supplier. 
  • Advised the Polish government in the privatization of PZU (2001). 
  • Represented a German/Swedish consortium in the privatization negotiations of three Polish spirit companies (2000-2001). 
  • Represented a Swedish spirit company in a privatization and acquisition of Polmos company (2002-2003). 
  • Represented a large packaged foods company as defendant in an arbitration with a contractor (2000). 
  • Represented a Polish communications company as defendant and cross-plaintiff in a major arbitration dispute with a global telecommunications operator (2001-2003). 
  • Acted as lead negotiator and counsel for a Polish government-owned hotel company in a long term international franchise agreements with a global U.S. firm (2005-2006, 2009-2010). 
  • Acted as lead counsel for a Polish spirit manufacturer as defendant in arbitration and litigation with a Polish competitor and U.S. vodka distributor. Successfully argued the case before the Supreme Court (2001-2006). 
  • Acted as lead counsel for a U.S. company seeking enforcement of the New Jersey court judgment in Poland. Successfully argued the case before the Supreme Court (2003-2008).
  • Represented a Polish trading company in a US$700 million pre-litigation contractual dispute with Lockheed Martin Corporation stemming from the F-16 Aircraft Sale Contract and Offset Agreement concluded with the Polish Government in 2003. The dispute was successfully closed and settled in March 2013.


Mr. Pieckowski has been listed in Chambers Global – The World’s Leading Lawyers for Business (2010-2015) and in Chambers Europe - Europe's Leading Lawyers for Business (2011-2015) for dispute resolution in Poland.

Activities and affiliations

  • President, Polish Arbitration Association, 2006-present 
  • Deputy Director, PAA Business Mediation Center, 2003-present
  • Co-founder and 1st Vice President, Arbitration Court at the Polish Confederation of Private Employers LEWIATAN, 2005-2011
  • President, Civic Council for ADR matters at the Ministry of Justice in Poland, 2012-2014
  • Arbitrator, International Centre for Dispute Resolution (ICDR), 2009-present
  • Arbitrator, Czech Court of Arbitration, 2007-present
  • Arbitrator, Arbitration Court at the Kraków Chamber of Commerce and Industry, 2007-present
  • Arbitrator, Court of Arbitration at the Polish Chamber of Commerce in Warsaw, 2013 - present
  • Mediator, PAA Business Mediation Center, 2002-present
  • Member, Expert Team for Enhancement of the System of Business Dispute Resolution at the Polish Ministry of Economy, 2013 - present
  • Member, Expert Team for the Project “Effective and Ancillary State” at the Chancellery of the President of the Republic of Poland, 2013 - present

Professional background

  • Legal Advisor, Ministry of Foreign Trade, 1977-1987 
  • Fellow, Salzburg Seminar in American Studies, 1981
  • General Counsel and Proxy, PHZ Pezetel, Warsaw, 1983-1987 
  • Chief Legal Officer, Melex USA, Inc., 1988-1996
  • Counsel, Miller, Canfield, Paddock & Stone, Warsaw, 1996-1998
  • Altheimer & Gray, Warsaw, 1998-2004


Business Mediation


Transparency and confidentiality in international commercial arbitration
University of Warsaw, Faculty of Law and Administration Conference
Association for the organization and promotion of the Willem C. Vis International Commercial Arbitration Moot was held March 26-April 1, 2010 Chadbourne and Parke...
University of Warsaw, Faculty of Law and Administration Conference
Sylwester Pieckowski spoke on "Conflict of interest in med-arb and arb-med proceedings" on February 10, 2010 at a conference organized by the University of Warsaw, Faculty of Law...