Electric Boat Corporation Designer and builder of nuclear submarines for the US Navy. http://www.gdeb.com/

Global Submarines Oy Ltd. Designs, manufactures, and sells submarines and subsea equipment and parts. http://www.globalsubmarines.com/

Hawkes Ocean Technologies Inventor and maker of revolutionary submersible vessels. Offers "flight" training and certification. http://www.deepflight.com/

International VentureCraft Corp SportSub and ResortSub submarine and submersible boat. http://www.ivccorp.com/

Nuytco Research Ltd. Develops and operates undersea technology, including atmospheric diving suits, submsersibles, remotely operated vehicles, and specialty equipment for commercial diving. http://www.nuytco.com/

Odyssea Submarine, Inc. A new concept in underwater flight. http://www.odyssea-sub.com/

SEAmagine 2 occupant and one pilot, submersibles. http://www.seamagine.com/

Subsee Australia Constructs semi-submersible viewers for the national and international market. http://www.subsee.com.au/

U.S. Submarines, Inc. Manned submersibles, tourist and personal luxury submarines, and ocean activity centers and habitats. http://www.ussubs.com/