We are located in Portland, Oregon, USA on the Columbia River system.  Offering repair, retrofit and construction of tugs, barges and commercial steel vessels.  Serving the marine industry for over 30 years and offering ancillary services of drydocking, repowering, diving, cranes, pile and dock work, piping, equipment installation and mechanical contracting.  Additionally, we have a well-maintained fleet of marine construction vessels (tugs, derrick and barges) to serve water-based construction and environmental services.

< DMI's tugs, Cougar & Crown Z delivering the DB Vulcan and DMI60 to job site at Sellwood Bridge. Dec 2011.

A busy shipyard.

A recent visitor to Diversified Marine.

Who says wildlife cannot prosper in harmony with industry?