| Electric Boat Corporation - http://www.gdeb.com/ |
| Global Submarines Oy Ltd. - http://www.globalsubmarines.com/ Designs, manufactures, and sells submarines and subsea equipment and parts. |
| Hawkes Ocean Technologies - http://www.deepflight.com/ Inventor and maker of revolutionary submersible vessels. Offers "flight" training and certification. |
| International VentureCraft Corp - http://www.ivccorp.com/ |
| Nuytco Research Ltd. - http://www.nuytco.com/ Develops and operates undersea technology, including atmospheric diving suits, submsersibles, remotely operated vehicles, and specialty equipment for commercial diving. |
| Odyssea Submarine, Inc. - http://www.odyssea-sub.com/ |
| SEAmagine - http://www.seamagine.com/ |
| Subsee Australia - http://www.subsee.com.au/ Constructs semi-submersible viewers for the national and international market. |
| U.S. Submarines, Inc. - http://www.ussubs.com/ Manned submersibles, tourist and personal luxury submarines, and ocean activity centers and habitats. |