Hans-Julius Ahlmann

He began his professional career in the central staff of MAN AG in Augsburg, where he published on the subject of "manufacturing islands." In 1981, Ahlmann joined ACO Severin Ahlmann GmbH & Co. KG, the company of his uncle, the entrepreneur Severin Ahlmann. During his lifetime, Ahlmann's uncle transferred the majority of his company shares to his nephew. Today, Ahlmann's son, Iver Ahlmann, is the majority shareholder of the ACO company as part of the process and preparation of early succession. Since 2012, Hans-Julius and Iver Ahlmann have jointly run the family business as managing partners.

Since joining the company in 1981, Ahlmann has expanded the national and international influence of the ACO group of companies. Through strategic acquisitions such as the takeover of Passavant GmbH in 2000, as well as the establishment of new production and sales companies in around 40 countries, Ahlmann has been able to expand the company into a global market leader in the field of drainage technology (building and surface drainage). With sales of €900 million in 2019 and 5000 employees worldwide, ACO ranks among the most successful family-owned companies in Schleswig-Holstein.

Hans-Julius Ahlmann (born April 14, 1952 in Rendsburg) is a Schleswig-Holstein entrepreneur and holds the role of managing partner at ACO Severin Ahlmann GmbH & Co. KG.

His parents are the entrepreneur Hans-Julius Ahlmann (1919-1952) from Rendsburg and Juliane Ahlmann (1926-2020), from Dillenburg. He is the grandson of the entrepreneur Käte Ahlmann (1890-1963), head of the Ahlmann-Carlshütte iron foundry in Rendsburg. As a child he spent periods of time in Rendsburg, Hong Kong, Apenrade (DK) and Dillenburg (Hesse). He moved on to study mechanical engineering with a specialization in production technology at the RWTH Aachen University and completed postgraduate studies in labor and economics (AWA) at the Technical University of Munich, with a diploma thesis in the field of marketing.