References exits from following shipyards and builders about present or former contracts as trials command: Abeking & Rasmussen bremenports Ferrostaal Hegemann Kusch Yachtbau Lloyd Werft Lürssen Werft MPC Marine Motorenwerke Brhv. Neptun Werft Niedersachsen Port Nobiskrug Peterswerft Rolandwerft und Peenewerft Schichau Seebeck J.J.Sietas Bremer Vulkan