Human Occupied (HO) & Hybrid Submersibles

ISE has more than 40 years of experience designing, engineering, and supporting Human Occupied (HO) and hybrid submersible systems for commercial, military, research, and specialized applications. Our expertise spans fully crewed submersibles, remotely operated systems, and hybrid platforms that combine human occupancy with advanced underwater capabilities.

ISE’s project history includes a diverse range of submersible developments, from military and rescue vehicles to commercial passenger submarines. Notable programs include the WRANGLER remotely controlled/crew-capable underwater vehicle, ODYSSEY passenger submarines, the West Edmonton Mall tourist submersibles, and the SDL-1 700 m-rated human-occupied submersible with diver lockout capability.

More recent work includes the Submarine Rescue Diving and Recompression System (SRDRS) for the U.S. Navy, where ISE provided propulsion systems, control systems, operator consoles, and the control van for the hybrid rescue submersible. ISE has also designed and manufactured ABS-certified passenger submersibles, including an eight-passenger luxury submarine rated to 365 m operational depth.

Through decades of subsea innovation, ISE provides proven engineering expertise for the development, integration, and support of advanced human-occupied and hybrid underwater vehicles.