Stephan Assheuer

Stephan Assheuer is a chartered naval architect with a wealth of experience in maritime regulatory affairs. Throughout the last decades he has been involved in a wide range of regulatory projects within IMO and IACS, such as the Ballast Water Management Convention, the revision of the Load Line Convention, the revision of SOLAS Chapter XII, the IMO GBS or the IACS Common Structural Rules and so on. Stephan has chaired various Working Groups at IMO and IACS and is well known for his straight-forward and effective way of working. Since 2018 Stephan is nominated by Germany as GBS auditor.

As partner and managing director of admaris, Stephan’s knowledge, experience and dedication to quality and efficiency are available for the benefit of our customers. Amongst others he recently was key expert in an EU funded project supporting maritime administrations in the Black Sea and Caspian region or is representing admaris in a regulatory development project for the German Ministry of Transport.

The pessimist complains about the wind,

the optimist expects it to change,

the realist adjusts the sails.

William Arthur Ward


  • 2011 onwards
    Partner and managing Director at admaris GmbH, Hamburg, Germany
  • 2007 – 2010

    Vice President and Head of Competence Centre International Regulations and Flag State Affairs at Germanischer Lloyd, Head Office, Hamburg, Germany

  • 2002 – 2007
    Head of Department Flag State Affairs at Germanischer Lloyd, Head Office, Hamburg, Germany
  • 1995 – 2002
    Technical Expert Freeboard Department and Stability Department at Germanischer Lloyd, Head Office, Hamburg, Germany
  • 1994 – 1995
    Project engineer steering gear at Barkemeyer Schiffstechnik, Reinbek, Germany


  • 1994
    Graduation as Diplom-Ingenieur (MSc Naval Architect), University of Hamburg
  • 1985
    Examination as qualified boatbuilder