- 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.
- Submarine Safaris Asia, Ltd. - Located in Bali, Indonesia offering excursions for 36-passengers to 150 feet. Features vessel specifications, picture gallery, and contact information.
- Nautilus of Cayman Ltd. - Semi-submersible providing underwater excursions off George Town, Grand Cayman, Cayman Islands. Features tour profile, map, and reservation form.
- 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.
- Caicos Tours Ltd. - Turtle Cove, Australia operation taking 16-passengers on a 1-hour semi-submersible tour. Feature rates, location, schedule, and pictures.
- 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.
- 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]
- 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]
- Alaska Underseas Tours - Ketchikan, Alaska, USA semi-submersible operation taking 16-passenger on a 90-minute tour. Features excursion details, rates, and picture gallery.
- AquaMir Ltd. - Lamaka, Cyprus tour operator offering 40-passengers excursions to a depth of 150 feet. Features submarine specifications, company profile, reservation details, picture gallery, maps and directions. [English, Germany, French]
- 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 multimedia gallery.