Our corporate structure

Five operative companies under one roof

The J.H.K. Group of Companies – A Strong Alliance for our Customers

The J.H.K. Group of companies was founded in 1901 in Bremerhaven by Johann Heinrich Kramer as a coppersmithy and is family-owned in the third and fourth generation by the Kramer family, managed by Mr Julius Kramer. Over the decades, an internationally acting group of companies has developed defining its strength in the bundling of competences for its customers.

The holding company of the group is the J. Heinr. Kramer Holding GmbH & Co. KG based in Bremerhaven. The organisation is aiming at the needs of our customers. The operative business is carried out by five companies with differentiated performance focuses, however closely cooperating to offer a broad range of services “from one source”.

The J.H.K. Group

J. Heinr. Kramer Holding GmbH & Co. KG


Pipeline and Steel construction, Tank and process equipment

J.H.K. Anlagenbau und Industrieservice GmbH & Co. KG 

J.H.K. Engineering GmbH & Co. KG (Bremerhaven)

Electrical plant construction

J.H.K. Anlagenbau und Industrieservice GmbH & Co. KG 

Surface technology and Scaffolding

J.H.K. Industrie­beschichtung GmbH & Co. KG (Großkneten / Ahlhorn)

System solutions for the handling of oil products

M+F Technologies GmbH (Hamburg)

Special Machine Construction

J.H.K. Regeniter GmbH (Essen)

© 2024 J. Heinr. Kramer Holding GmbH & Co. KG