Claus H. Lenz, FCIArb, is the owner of the law firm LDR Lenz Dispute Resolution in Hamburg, Germany. His long lasting expertise in the field of construction and engineering projects includes negotiation of contracts and paricipation in any kind of dispute settlement or dispute avoidance proceedings, as counsel but more often as arbitrator, mediator or Dispute Board member. 

Claus served as a Co-Chair of the International Construction Projects (ICP) Committee of the International Bar Association (IBA). He is regularly listed as a leading construction lawyer by various organsations and is described as one of the “most highly regarded” construction lawyers in Germany, “highly recommended for construction cases and disputes” and with “outstanding client care”.