Contact persons

  • Niederlassungsleiter / Branch manager Axel Kruse E-Mail:
  • Administration Astrid Koßytorz Telefon: +49 (0)421 699 069-30 E-Mail:
    Administration Birgit Dömelt Telefon: +49 (0)421 699 069-20 E-Mail:
  • Projektleiter, Leiter Services / Project Manager, Head of Services Alexander Breussov Telefon: +49 (0)421 699 069-17 E-Mail:
  • Konstruktionsleiter / Head of design department Kim Kunert-Lissowski Telefon: +49 (0)421 699 069-50 E-Mail:
  • Baugruppenverantwortlicher/ Product Group Leader André Schultz Telefon: +49 (0)421 699 069-60 E-Mail:
    Baugruppenverantwortlicher/ Product Group Leader Davis Fröhlich Telefon: +49 (0)421 699 069-55 E-Mail:
  • Konstrukteur / Design engineer Manuel Heisinger Telefon: +49 (0)421 699 069-57 E-Mail:
    Konstrukteur / Design engineer Thomas Domek Telefon: +49 (0)421 699 069-53 E-Mail:
    Konstrukteur / Design engineer Matthias Klose Telefon: +49 (0)421 699 069-59 E-Mail:
    Konstrukteur / Design engineer Christoph Knief Telefon: +49 (0)421 699 069-61 E-Mail:
    Konstrukteur / Design engineer Julian Karstens Telefon: +49 (0)421 699 069-43 E-Mail:
    Auszubildender / Trainee Damien Zimmermann Telefon: +49 (0)421 699 069-51 E-Mail:
    Konstrukteur / Design engineer Sebastian Haase Telefon: +49 (0)421 699 069-62 E-Mail:
    Auszubildender / Trainee Dominik Zimmermann Telefon: +49 (0)421 699 069-44 E-Mail:
  • Technischer Einkäufer / Technical Purchasing Manager Norbert Miedza Telefon: +49 (0)421 699 069-12 E-Mail:
  • Arbeitsvorbereitung / Process Planning Joachim Grahl Telefon: +49 (0)421 699 069-11 E-Mail:
  • Montageleiter / assembly manager Zafer Kara Telefon: +49 421 699 069-52 E-Mail:
  • After Sales Services Günter Labrenz Telefon: +49 (0)421 699 069-69 E-Mail:
    After Sales Services Christoph Bier Telefon: +49 (0)421 699 069-68 E-Mail:
    After Sales Services Melanie Zander Telefon: +49 (0)421 699 069-67 E-Mail:
  • Fertigungsleiter / Production Manager Christian Ptok Telefon: +49 (0)421 699 069-99 E-Mail:
  • Vorarbeiter Scharniertür / Forman Hinged Door Marvin Vogt Telefon: +49 (0)421 699 069-66 E-Mail:
    Vorarbeiter Schiebetür /Forman Sliding Door Alexander Zimmermann Telefon: +49 (0)421 699 069-15 E-Mail:
  • Servicetechniker / Technician Christoph Bier Telefon: +49 (0)421 699 069-68 E-Mail:

Our history

Ever since the company’s foundation as a one-man-business until the formation of HGB GmbH and the establishment of the present crew, two things have never changed: the appreciation of each employee’s work and the mutual respect within the team.

The responsibility each employee has for the final product is reflected in a high level of identification of the workers with the produced parts. This is observable in the outstanding quality of the final product.

2020

In September 2020, LETHE Exterior Doors GmbH began training technical product designers. Since then, LETHE has been nurturing young talents in a modern workplace, offering training in the office, workshop, and on-site. Since its successful start, the training program has been maintained and will continue to be offered in the future.

2018

In August 2018, LETHE Exterior Doors GmbH relocated to a new, larger office and manufacturing hall in Bremen-Nord. The move was a response to continuous growth and aimed to facilitate further expansion. Since then, the new location has provided an improved working environment for employees and has proven to be an important step in the company's development.

2015

In January 2015, HGB GmbH became part of the LETHE Group, a leading supplier for the maritime industry. With the merger, the existing workforce was retained, and the management continued under Jörg Blumentritt. Additionally, Thorsten David (Sales) and Armin Brummerloh (Finance) were appointed to the management team. As part of the integration, the company was renamed LETHE Exterior Doors GmbH.

2014

At the beginning of the year our design department moved out in its own building. In the middle of the year a HGB design was certified as the world’s first A60 weather tight sliding door. In November we exhibited at the world's largest marine equipment trade show - the METS - in Amsterdam, for the first time.

2013

The first flush sliding doors and A60 fire-rated hinged doors are being installed on board.

2012

An A 60 fire door yacht-standard is developed and certified by "Germanischer Lloyd". The first service flaps are delivered.

2011

Heinrich Goettsch-Buech passes on the baton to Joerg Blumentritt, who is now the sole General Manager.

2008

Demand is still on the increase. In order to process all orders satisfactorily, more workspace is necessary. A second workshop is built and further qualified personnel employed.

2007

What once was a one-man-business is replaced by the formation of the HGB GmbH, made up by 20 employees and four trainees.

2005 - 2006

As a consequence of a demand steadily increasing, the number of employees rises too. At the end of 2006, we have 13 employees and two trainees.

2003 - 2004

A new era has begun. The one-man business is replaced by the HGB GmbH. Now we have 20 employees and apprentice.

2002

HGB moves to Steller Heide 30, in the industrial area of Schwanewede-Neuenkirchen. Now working on its own, larger premises, HGB also expands the work force: five staff members were hired for production. The first major orders as direct supplier of the Luerssen Group follow. Reacting to particular customers’ demands, HGB specializes in accessories for large yachts; now hinged and sliding doors, wind breakers, hatches, and a variety of special constructions form a product range, which continues to broaden.

2001

The design engineer Joerg Blumentritt joins the company. He brings along first orders by yacht shipyards situated at the river Weser.

1995

Heinrich Goettsch-Buech ventures the step into self-employment and „HGB Industrieservice und Metalldesign“ was born in the Rader Heide 10, Schwanewede. As a one-man-business, Hein makes a name for himself with his versatility and carries out, among other jobs, industrial assemblies, stair-railings, office equipment, mobile booths, special constructions for sports clubs, and very special bicycle stands.