J.J. Sietas

Pella Sietas is a shipbuilding company in Neuenfelde, Cranz, west-south area of Hamburg. The company is from the insolvent traditional J.J Sietas KG Schiffswerft GmbH u. Co. emerged. The company's headquarters is located in the estuary of Este river at Unterelbe.

The until November 2013 oldest still existing shipyard in Hamburg was founded in 1635, making it one of the oldest industry of the city. From the inception, the company was continuously owned by the family and was out until early 2009 in the ninth generation. In the early years were mainly boats built of wood, later followed Briggs and other types of ships. In Early 20th century, production was continuing shifted from wood to steel. Since the 1950s, was built on the shipyard, Ships in sectional construction. Primarily small to medium-sized, in recent years container vessels were built.

After the shipyard was experiencing financial difficulties due to rising steel prices, the rapid fall in rates for container ships and incorrect calculation of costs, the largest creditor of the shipyard, HSH Nordbank in early March 2009 had a new management, first performed by non-family member since 1635.

After the shake of the global recession in 2009, especially container shipping fell sharply and J.J. Sietas had to contend with numerous cancellations and dwindling backlog, turned it from container ship off and wanted to concentrate on niches in the specialty shipbuilding. These include heavy lift vessels, ferries, offshore vessels. The last container ship was completed in November 2009. On November 6, 2009, the 393rd and last container ship or feeder was delivered. In December 2010, Sietas has received an order for the first in Germany to be built offshore wind power transport and installation vessel, named Aeolus, which until February 2014 for the Dutch Van Oord-group was built, this ship was the last one and even biggest built in shipyard, before to be overtaken from Russian Pella in April 2014.