German businessman Klaus-Michael Kuehne has an estimated net worth of $13.4 billion in April 2019. He is known to be the majority owner and executive chairman of Küehne + Nagel, an international transport and logistics company.

Founded by his grandfather August Kuehne, Klaus Michael Kuehne has been running and managing Kuehne & Nagel for more than four decades now. Through Kuehne & Nagel Holding AG, he currently owns 53.3 % stake in Kuhne und Nagel International AG which has already gone public. After stepping down as Chairman of the Executive Committee, he currently serves as the company's Honorary Chairman.

Today, Michael Kuehne owns 28.2 % of the 77.96 % which is held by Hamburgische Seefahrtsbeteiligung "Albert Ballin" GmbH & Co. KG in Hapag-Lloyd Holding AG. Hapag-Lloyd Holding AG is considered as one of the leading container ship operators in the world today.

By the end of 2012, Hamburg Sud and Hapag-Lloyd were reported to have a merging. The merging would result in the forming of the fourth largest Container shipping company in the world. Today, the company has sales amounting to 10 billion euros and currently hires over 11,500 employees.