Atlantis Submarines International, Inc.: Dive locations in the Caribbean and South Pacific taking 48-64 passengers to excursions of 100 feet. Features company history, tour schedules, sales, destination information, and extensive multimedia gallery.
Haliburton Forest and Wildlife Reserve Ltd - Submarine: Dive tours of MacDonald Lake, Ontario, Canada to a depth of 70 feet. Features PDF download for reservations.
Nautilus of Cayman Ltd.: Semi-submersible providing underwater excursions off George Town, Grand Cayman, Cayman Islands. Features tour profile, map, and reservation form.
Pacific Subsea Saipan, Inc.: Located in Guam offering excursions of Saipan Lagoon to 100 feet. Features tour overview, daily schedule, video and picture gallery. [English, Japanese, Korean]
Stanley Submarines: Located in Roatan, Honduras, Central America carrying 1 pilot and 2 passengers to excursions of 3,000 feet. Features vessel, destination, and marine life profiles, and sales information.
Submarine Safaris Asia, Ltd.: Located in Bali, Indonesia offering excursions for 36 passengers to 150 feet. Features vessel specifications, picture gallery, and contact information.
Submarine Safaris S.L.: Located in Puerto Calero, Canary Islands taking 48 passengers to excursions of 200 feet. Features company profile, schedule and sales, reservation form, and children's interactive resources. [English, Dutch, Spanish]
The Bubble Sub: Located in George Town, Grand Cayman, Cayman Islands carrying 2 passengers to excursions of 50 feet. Features company and vessel profile, picture gallery, and reservation form.
Tropical Submarine Safari Ltd.: Offers submarine tours and single person undersea scooter rentals. Features company profile, rate card and a gallery of pictures and videos. [French, English]