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351 companies

STX Canada Marine Inc.

Vancouver,, BC, CanadaUpdated Apr 2011

STX Canada Marine Inc. is a consulting naval architecture and marine engineering company established in 1983, evolving from Aker Yards Marine.

STX France SA

Saint Nazaire Cedex, FranceUpdated Jun 2016

STX France SA is a shipbuilding company based in Saint Nazaire Cedex, France, specializing in ship design, engineering, and construction services.

STX US Marine Inc.

Houston,, TX, United StatesUpdated Apr 2011

STX US Marine Inc. is a consulting naval architecture and marine engineering company established in 1983, specializing in ship design and marine engineering services.

SWATH Ocean Systems Inc.

National City, CA, United StatesUpdated Nov 1998

SWATH Ocean Systems Inc. designs and builds Small Waterplane Area Twin Hull (SWATH) vessels for commercial, research, and military applications, offering superior stability and seakeeping in rough seas.

Safety at Sea Ltd (SaS)

Glasgow,, Scotland, United KingdomUpdated Dec 2005

Safety at Sea Ltd (SaS) is a consulting company of naval architects and marine engineers specializing in ship stability, design, and safe operation of ships and advanced marine vehicles, operating in partnership with the University of Strathclyde's Ship Stability Research Centre.

Sasakura/JGG Services

Westtown, PA, United StatesUpdated Nov 1998

Sasakura/JGG Services is the U.S. representative for Sasakura Engineering, providing sales and aftermarket service for marine freshwater generators, reverse osmosis systems, oily water separators, and heat exchangers on commercial vessels.

Schoellhorn-Albrecht Machine Co.

St. Louis, MO, United StatesUpdated Jun 2005

Designs and manufactures marine mooring equipment such as; capstans, deck and dock fittings, winches, hawser reels,accommodation ladders, anchors, chain stoppers, and custom deck machinery.

Schrider & Associates, Inc.

Daphne, AL, United StatesUpdated Nov 2004

Schrider & Associates, Inc., established in 1999, provides naval architecture and marine engineering design services.

Scientific Management Associates Inc.

Alexandria, VA, United StatesUpdated Nov 1998

Scientific Management Associates Inc. was a maritime services firm providing marine engineering and international ship management, with operations in Washington, New Jersey, and Australia. The company was acquired by new owners in March 1983.

Sea Engineering Inc.

Honolulu, HI, United StatesUpdated May 2026

Sea Engineering, Inc., founded in 1973 by University of Hawaii graduate students, provides marine-related engineering, construction, and diving services throughout the Pacific.

Sea Systems Inc.

Ward Hill, MA, United StatesUpdated Aug 2001

Sea Systems Inc. provides marine engineering and ship repair services in Ward Hill, United States.

Seaeye Marine Ltd

Location not listedUpdated Dec 2002

Saab Seaeye is a world leader in electric underwater robotics, providing innovative and sustainable remotely operated vehicles (ROVs) and related underwater technology for complex subsea missions across various sectors.

Seattle Maritime Academy

Seattle, WA, United StatesUpdated Jul 2005
Training

Seattle Maritime Academy prepares skilled mariners for careers in all sectors of the maritime industry through US Coast Guard-approved certificate programs emphasizing hands-on training and on-the-water experience.

Seaworthy Electrical Systems

New York, NY, United StatesUpdated Nov 1998

Seaworthy Electrical Systems is a New York-based provider of marine electrical and engineering technical services, specializing in shipboard electrical work and ship support services for the U.S. Department of Defense.

SembCorp Marine Limited

Singapore,, SingaporeUpdated Jun 2007

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.

Sevan Marine ASA

Tananger,, NorwayUpdated Jan 2007

Sevan Marine ASA is a specialized marine engineering and design house pioneering cost-effective offshore solutions including cylindrical hulls and semi-submersible floating production units.

Shanghai Hanwei Special Valve

Location not listedUpdated Dec 2002

Shanghai Hanwei Special Valve, established in 1992 and headquartered in Shanghai Pudong New Area, specializes in high-tech valves including ball valves, butterfly valves, gate valves, and control valves, serving industries such as oil and gas, marine engineering, petrochemical, and chemical sectors.

Shearer & Associates

Seabrook, TX, United StatesUpdated May 2026

The Shearer Group, Inc. (TSGI) is a naval architecture, marine engineering, and marine surveying firm specializing in the design of inland towboats, barges, drydocks, and passenger vessels.

Skinner Engine Co.

Erie, PA, United StatesUpdated Nov 1998

Skinner Engine Company was a historic American marine steam engine manufacturer founded in 1868 in Herkimer, New York and based in Erie, Pennsylvania from 1873 until its closure in 2013. The company produced approximately half of all Universal Unaflow steam engines built in the United States.

Souter Marine Ltd

Isle of Wight,, United KingdomUpdated Jan 2006

Souter Marine Ltd is a marine engineering company based on the Isle of Wight, United Kingdom, specializing in marine propulsion and engineering services.