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10,359 companies

Great Lakes Pilotage Authority

Cornwall,, ON, CanadaUpdated Oct 2004

As a result of recommendations made by a Royal Commission on Pilotage in Canada, the Pilotage Act was assented to by Her Majesty and the Governor-in-Council and proclaimed in force February 1, 1972. The Pilotage Act created four pilotage regions with specific authorities, thereby replacing a large number of local pilotage districts. The four Pilotage Authorities - Atlantic, Laurentian, Great Lakes and Pacific - are Crown corporations, responsible to Parliament through the Minister of Transport. The Great Lakes Pilotage Authority, Ltd. was established in February 1972 pursuant to the Pilotage Act, incorporated as a limited company in May 1972, and was continued under the Canada Business Corporations Act. Until October 1st, 1998, it operated under the name of Great Lakes Pilotage Authority, Ltd. Pursuant to the Marine Act, which received Royal Assent on June 11 1998, the name of the Authority was changed to Great Lakes Pilotage Authority and the Authority is deemed to have been established under subsection 3(1) of the Pilotage Act. The Authority is a Crown corporation listed in Schedule III, Part I of the Financial Administration Act. On October 1st, 1998, the Authority ceased to be a subsidiary of the St. Lawrence Seaway Authority and has initiated a process to surrender its charter under the Canada Business Corporations Act.

Great Lakes Power Products

Pittsburgh, PA, United StatesUpdated May 2026

Great Lakes Power Products is a leading provider of OEM products, rebuilt units, parts, service and engineering expertise for power transmission solutions in the marine and industrial off-highway markets, including commercial, pleasure, and governmental vessels.

Great Lakes Schooner Company, Ltd.

Toronto,, Ontario,, CanadaUpdated Jan 2004

Great Lakes Schooner Company, Ltd. operates tall ship cruises and private boat charters in Toronto Harbour, offering corporate events, weddings, educational programs, and public dinner and brunch cruises.

Great Lakes Shipyard

Cleveland, Ohio, United StatesUpdated May 2002

The Great Lakes Group is a full-service marine transportation organization operating on the Great Lakes, providing transportation, logistics, new construction, fabrication, repair, and linehandling services.

Great Southern Maritime Services Corp

Palanan, Makati City,, Metro Manila, PhilippinesUpdated Aug 2004

After more than 10 years in the manning industry, Great Southern Maritime Services Corporation (or GSM) has continued to provide quality crew management service to its international clients in Asia and Europe. The company excels in providing competent, well-trained and medically fit professional seafarers to serve onboard: -product/chemical tankers -cement carriers -cruise & ferry vessels -onboard casino & gaming operations -bulk carriers & general cargo vessels Being affiliated with the Singapore-based, MSI Group, GSM is part of a regional organization that provides ultimate ship management solution like: Technical Ship management, Crew Management, Newbuilding and Conversion Supervision, Vessel Inspection, Docking Supervision, Technical Consultancy, Agency Services, Ship Spare and Store Supplies, Bunker Brokering and Shipyard Services. With the established strength of the MSI Group’s network in Asia and Europe, GSM’s clients can easily tap into this wide array of services.

Great lakes Chemical Corp.

United StatesUpdated Jun 2003

Great Lakes Chemical Corp. is a trusted provider of clean agent fire suppression systems, specializing in fire protection solutions.

Greater Houston Port Bureau, Inc.

Houston,, Texas, United StatesUpdated Oct 2005

The Greater Houston Port Bureau partners with members to promote cooperation and efficiency in the Houston port region, providing vessel movement data, port information, and advocacy for Texas deepdraft ports.

GreenBanks

Location not listedUpdated Dec 2002

greenbanks.com is a domain name currently for sale, promoted as suitable for green investment and energy-related businesses.

Greenbay Marine Pte Ltd

SingaporeUpdated Jun 2000

Greenbay Marine Pte Ltd is a Singapore-registered company promoting Singtel broadband internet plans and does not provide maritime-related services.

Greenbriar Resources - Gary L.

Location not listedUpdated Dec 2002

Greenbriar Resources Corporation is an upstream consultancy to the oil and gas industry specializing in geology, geophysics, reservoir and production engineering, and economic analysis, providing data integration and custom software solutions for hydrocarbon exploration.

Greenpeace

Washington, DC, United StatesUpdated Mar 2004

Greenpeace is an environmental organization campaigning against environmental degradation using non-violent direct action, research, and lobbying, with ships playing a key role in their campaigns.

Greenshields & Co Edinburgh Ltd

United KingdomUpdated Oct 2002

The Greenshields group of shipping companies operates from offices in Edinburgh, Tokyo, and Douglas, Isle of Man, providing shipping services.

Greenthought (HK) Ltd.

Kowloon,, Hong Kong SAR., ChinaUpdated Feb 2007

Greenthought (HK) Ltd. provides oil pollution prevention and tank cleaning services in China waters, mainly Zhujiang Kou, Guangdong Province, including deslopping with official certificates and clean ship packages.

Greenwood Marine Management

Morgan City, LA, United StatesUpdated May 2026

Greenwood Marine Management, Inc. provides marine survey and inspection services, marine construction, conversions and repairs, vessel design and specification preparation, and project management services for marine vessels and related equipment.

Gregory Marina Inc

Detroit, MI, United States

Gregory Marina Inc is a marina located in Detroit, Michigan, providing boat docking, storage, and related marine services.

Greka Energy

Location not listedUpdated Dec 2002

Greka Energy is an independent oil and gas company engaged in exploration, production, and development of energy resources.

Grenland Port Authority

Brevik,, NorwayUpdated May 2005

Port of Grenland is one of the most important ports in Norway, with the local industry as its solid mooring point. The industrial activity in the Grenland region is in fact the foundation of the port.

Gretimybe Ltd

Klaipeda, LithuaniaUpdated May 2005

Gretimybe Ltd is the largest crewing company in the Baltic States, specializing in crew management and providing qualified seafarers for various vessels and offshore projects.

Gretna Machine & Iron Works

Harvey, LA, United StatesUpdated Nov 1998

Gretna Machine & Iron Works (GMIW) is a Harvey, Louisiana shipyard providing drydocking, steel fabrication, and machining services for inland and Gulf Coast vessels including towboats and barges.

Gripfast Ltd.

Bristol, United KingdomUpdated Nov 1998

Gripfast Ltd. is a UK-based company specializing in shipping-related software solutions, offering data integration, shipping visibility, and analytics to improve efficiency and profit margins.