Bremer / Vulkan dockyard

Wikipedia:

Bremer Vulkan was a German shipbuilding company founded when a group of investors bought the Johann Lange shipyard that had opened on September 21, 1805.

Bremer Vulkan made a few U-boats under a licence from the Germaniawerft in Kiel. However, it is better know for constructing the second ship to raise a submarine, SMS Cyclop. Originally the ship was planned to be built at the Kaiserliche Werft at Danzig.

During World War I Bremer Vulkan constructed 8 Mittel U U-boats for the Kaiserliche Marine. Later, in World War II, 74 different VII U-boats were constructed for the Kriegsmarine. The facility was a target of the bombing of Bremen in World War II and used Bremen-Vegesack concentration camp labor.

Beginning in 1950, post-World War II Bremer Vulkan built both passenger and cargo ships, tankers, Fishing vessels, container ships, submarines and other naval ships. In the 1980s it was one of the largest shipyards in Germany.

After a 1996 bankrupcy, Bremer Vulkan closed the shipyard in 1997. At that time Bremer Vulkan was the largest shipyard employer (over 22,000 workers) in Germany and there were mass demonstrations and violent protests.