Dolphin Marine International, LLC operates ocean tugboats. Its boats perform a range of operations, such as rig moving, anchor handling, pipeline construction, and salvage operation services for companies involved in the maritime and energy industries.
Dolphin Offshore Enterprises (India) Limited (DOEIL) is a leading provider of underwater services, including diving, fabrication, installation, and turnkey EPC projects, to the Indian offshore oil and gas industry.
Dolsey Ltd is a Norfolk, Virginia-based distributor of stand-up paddleboards (SUPs), surfing equipment, foils, e-foils, electric motorizing fins, rashguards, and related accessories, serving the watersports market since 1978.
Fairhaven,, Massachusetts, United StatesUpdated Jun 2005
Dominica Maritime Registry, Inc. (DMRI) is the international maritime registry for the Commonwealth of Dominica, providing vessel registration, seafarer certification, and compliance services globally to ensure maritime safety and security.
Dominion Diving Ltd is a 100% Indigenous owned marine services company based in Dartmouth, Nova Scotia, providing commercial diving, ROV operations, tugboat services, and integrated marine solutions since 1969.
Donald R. Hudson Naval Architects Inc. is a Portland, Oregon naval architecture firm providing ship and vessel design, marine engineering, and hull design services.
Inverurie, Aberdeenshire, United KingdomUpdated May 2026
Donald Smith Modelmakers produces accurate scale models of historic and modern vessels for shipbuilding design, marketing, and museum display purposes.