SEEKARTE Kapitän August Dammeyer GmbH & Co. KG provides precise and updated nautical-hydrographical data and navigation aids, supporting crews and shipowners with official electronic and printed maritime publications and services since 1919.
Sekwang Heavy Industries Co., Ltd. is a company based in Ulsan, Korea, specializing in heavy industries likely related to shipbuilding or maritime manufacturing.
SELCO USA, Inc. provides technical solutions and protective devices for the offshore and marine industry, specializing in generator control, ground fault detection, and marine instrumentation.
Selvick Marine Towing provides harbor towing, ice breaking, and ship assistance services in Sturgeon Bay, Green Bay, and Marinette, operating year-round in the Great Lakes.
SembCorp Marine Limited is a leading global marine-engineering group specializing in ship repair, shipbuilding, ship conversion, and offshore engineering with extensive shipyard facilities in Singapore, Indonesia, China, and Brazil.