Colonna's Shipyard Competitors

General Dynamics Electric Boat is a business unit of General Dynamics with headquarters in Groton, CT. The world’s first and finest submarine builder, Electric Boat was established in 1899 to complete the U.S. Navy’s first modern commissioned submarine, USS Holland. Designed and built by Electric Boat, USS Nautilus, the world’s first nuclear-powered submarine, was launched in 1954. Electric Boat has designed and delivered 17 of the U.S. Navy’s 20 classes of nuclear submarines. Now in its second centennial of submarine building, EB is the design yard and prime contractor for the Virginia-class submarine program, currently in production. EB is also designing and developing the Columbia-class ballistic-missile submarine which will replace the current Ohio class beginning in 2027.

From defending nations to connecting communities and sustaining fleets, we deliver proven performance, next generation innovation and mission-critical reliability. For more than three decades we have been designing, constructing and supporting commercial and defence vessels for leading ferry operators, navies and defence forces. With a genuine focus on research and development of emerging maritime technologies and cutting-edge ship designs, we are leading the industry in the innovation of commercial and defence solutions.

ThyssenKrupp Marine Systems of Germany (often abbreviated TKMS) is a group and holding company of providers of naval vessels, surface ships and submarines. It was founded when large industrial conglomerate ThyssenKrupp acquired Howaldtswerke-Deutsche Werft on January 5, 2005.