Gregg Drilling, LLC. (Gregg) offers a wide range of services for environmental, geotechnical and marine site investigation and remediation. Gregg has been widely recognised as a leader and innovator in drilling, sampling, and subsurface investigation, providing clients in industry and government with the highest quality services.

Grieg Logistics AS is a distinguished Norwegian logistics company specialising in ship services and industrial terminal operations for the shipping, energy, and general industries. Founded in 1969 by the Grieg Group, Grieg Logistics is headquartered in Bergen, Norway, and employs about 100 competent people.

Griffin Marine provides excellent quality and efficient work to clients. Griffin Marine provides products and services that meet customer-specific needs and expectations. They ensure their staff have the most up-to-date training to fully contribute to their services in the most time-efficient and effective manner.

Griffin Towage Ltd specialises in Coastal Towage Services and since 1999, has proudly been one of the most reliable and cost effective coastal towage operators in Northern Europe. Griffin Towage operates a fleet of purpose designed, built and specially equipped tugs with a long and successful track record of stricken ship rescues, coastal deliveries of construction plant, jack-up barges, and every type of vessel, from support ships and tankers.

At Griffon Hoverwork, they design and manufacture hovercraft of varying payloads and application requirements. Their crafts can be offered in differing configurations to suit varied requirements. They offer outstanding expertise in naval architecture, aerodynamics and regulatory compliance engineering, combined with genuine practical shipbuilding experience.

Grimaldi is a fully integrated multinational logistics Group specialising in maritime transport of cars, rolling cargo, containers, and passengers.

At GRM Marine, they navigate more than just the open seas; they steer trust, honesty, and excellence. Since their establishment in 2014, they’ve been charting a course of unwavering commitment to the maritime industry.

Grove Boats SA designs, builds and markets electric and solar-powered boats for pleasure boating and public transportation. Their boats are in use all over the world. They combine nautical know-how with solar energy. Their boats for professional use have capacities ranging from 12 to 100 passengers. They also offer their know-how for consulting and engineering missions related to clean navigation.

GSP is the largest Romanian entrepreneurial business and has made it to the 2011 Deloitte CE Top 500, ranking 2nd place, with a growth of 150% in 2010. The GSP QHSE Management System has been audited and certified as complying with the ISO 9001, ISO 14001, OHSAS 18001 and ISM Code requirements by Bureau Veritas. In 2006, GSP has integrated the SAP application.

GS Lines provides maritime services and is based out of Portugal.

At GS Marine, all of the products they sell are certified products. They provide services in all ports and shipyards within Turkey and globally. Their main areas of activity include technical materials, ship supply, spare parts, spare parts maintenance and installation, provisions, publications, electrical materials, daily living products, etc. They are both supplier and manufacturer. They can supply by air, sea and land.

GTT is a pioneering engineering company in containment systems for the shipping and storage in cryogenic conditions of LNG (liquefied natural gas), GTT offers engineering, consultancy, training, maintenance support, and technical design services. Approved by pioneering classification societies, its technologies are underpinned by a substantial return of experience over many decades.

The predecessor of Guangzhou Hon Hai Marine Special Equipment Co., Ltd. was the Deck Division of Guangzhou Haohan Electronic Technology Co., Ltd. The Haohan Company was established in 2005, mainly introducing foreign advanced marine products and equipment.

Guangzhou Port is the starting port of the Maritime Silk Road. Since the Qin and Han Dynasties, it has served as the sea-going channel of Lingnan Region and China's most important foreign trade port. Guangzhou Port is also the largest comprehensive port and foreign trade port in South China with a long history.

Guangzhou Shipyard International (GSI) is a shipbuilding company based out of Guangzhou, China. It is the largest modern integrated shipbuilding enterprise, based in Southern China. It was founded in 1954 and focuses on the core business of shipbuilding, and builds a range of high-quality and cost-efficient products, covering Tankers, Bulk Carriers, VLCC, and more.

Guangzhou Wenchong Shipyard mainly engages in building container vessels & dredgers, installation and manufacture for ports machinery, metallic structure & parts etc.

Guardian Offshore AU is an Australian-owned and operated marine solutions provider servicing the marine and offshore industries across Australia, and worldwide. Guardian employs first-class purpose-built vessels, operated and manned by a handpicked workforce who have extensive marine and technical knowledge.

Gulf Marine Contractors delivers time-efficient and cost-effective solutions for our clients worldwide. They are a one-stop support solution for companies that own or operate floating assets, supporting them from the tendering stage through project execution.

Gulf Marine Services (GMS) operates a modern fleet of highly versatile self-propelled lift boats, across international markets. Their vessels provide a stable platform for delivering a wide range of safe and efficient services, primarily in the offshore oil, gas and renewable energy sectors. Their vessels' versatility meets the demand of our clients, to provide cost-effective solutions, while minimising their environmental footprint.

Qatari company, Gulf Yachts, established in 2013 became one of the leading yacht companies in Qatar and the region. Gulf Yachts is a turnkey, single source solution to the boating and yachting industry and is the premier dealership for leading yacht brands in Doha, Qatar.

Güngen Maritime & Trading A/Ş is a Turkey-based maritime services company that owns and operates high-spec SUEZMAX type crude-oil tankers, including all aspects from Design to Crewing, Technical and Commercial issues are managed in-house. Besides the latter, the company still charters-in a varying number of vessels in service of its trading arm.

GWT Marine provides expertise spans from laser alignment to on-site boring, overhauling of machinery, shafting, propulsion and hydraulic systems, fabrication and piping works, and the list goes on… where they’ve assisted other transport and manufacturing industries with their repair & engineering work.

GY Marine Services LLC operates a modern fleet of highly versatile self-propelled lift boats, across international markets. Their vessels provide a stable platform for delivering a wide range of safe and efficient services, primarily in the offshore oil, gas and renewable energy sectors.

H. P. Holmeset AS is a shipping company that operates line fishing with the modern autoline boat - Geir. Line hauling takes place through a moonpool/dragon well where the people work protected from the weather and wind.

H.O. Bostrom provides seating solutions for vehicles and equipment in industries such as fire (FireFighter™ brand), marine (SeaPost™ brand), construction, transportation, military and other specialty markets. By offering complete design, engineering, fabrication, and assembly of seating systems and components right here in the USA, we offer our customers the advantage of single sourcing all of their seating requirements.

H&B Defence combines experience from Australia, the United Kingdom, and the United States to support the development of critical sovereign capability for the once-in-a-generation AUKUS nuclear-powered submarine program.

HADAG has been operating a scheduled boat service in and around Hamburg's docks since 1888. HADAG is responsible for all ferry traffic in Hamburg’s harbour in cooperation with the HVV Transport Alliance - a great opportunity to obtain a close-up impression of activities in the docks.

The Hadley Shipping Group Ltd operates as one of the few remaining family-controlled British shipping companies. The Company has navigated through often volatile and unpredictable markets with a legacy of prudent and responsible investment to prove credible growth and continued expansion.

Hagekilen's Båthamn was started by the brothers Johnas and Niclas Gustafsson. The marina is located in Stocken. The company runs a versatile business with both boat berths and winter berths for boats, woodwork/teak decks, service & repairs of boats & engines as well as sales. There is also an approved flushing plate with treatment plant for flushing boats.

The Hainan Maritime Safety Administration is a government agency which administers all matters related to maritime and shipping safety, including the supervision of maritime traffic safety and security, prevention of pollution from ships, inspection of ships and offshore facilities, navigational safety measures (including Search and Rescue, Aids to Navigation and the GMDSS).