Part of Boskalis

Part of Boskalis

Royal Boskalis Westminster N.V. is a leading global dredging and marine expert providing services to the dredging, inland infra and energy offshore sectors.
Through SMIT we are active in towage and salvage.

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Heinrich Hirdes GmbH

At the age of 27, the young engineer Heinrich Hirdes founded the "Heinrich Hirdes" building company in 1912 in Duisburg. From that time on, Heinrich Hirdes and his staff worked with great discipline, engineering skills, integrity, loyalty and to the utmost satisfaction of the customers.

Heinrich Hirdes led the company for forty years with great resourcefulness, willpower, intuition and imagination. He provided a wide range of building services in the fields of municipal water drainage, water supply, excavation/foundation work, industrial buildings and blast operations. The company rapidly developed into a renowned hydraulic engineering company in Duisburg.

Embankment work
Building an inner port

In 1947, the company changed its legal status from a sole proprietorship to a limited liability company (GmbH).

Branches were set up in Berlin, Bremen, Duisburg, Hamburg, Karlsruhe and Kiel between 1960 and 1980.

In 1978, Heinrich Hirdes GmbH was incorporated into the STRABAG group and the explosive ordnance clearance business unit was established.

Since 1991, Heinrich Hirdes GmbH has been a wholly owned subsidiary of Royal Boskalis Westminster N.V. We are proud to continue the traditions of the engineer Heinrich Hirdes. With our highly motivated staff and the latest technology, we take on all the tasks and challenges involved in the fields of hydraulic engineering, coastal defence, onshore/offshore explosive ordnance clearance, etc.

In 2012, we split the explosive ordnance clearance business unit into the units Onshore Explosive Ordnance Clearance and Offshore EOD Services.

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