Irish Continental Group plc is the leading Irish-based maritime transport group. They carry passengers and cars, Roll on Roll off (RoRo) freight and Container Lift on Lift off (LoLo) freight, on routes between Ireland, Britain and Continental Europe. They also operate container terminals in the ports of Dublin and Belfast. The Group also carries out ship chartering activities.

Irish Ferries is an Irish ferry and transport company that operates passenger and freight services on routes between Ireland, Britain and Continental Europe, including Dublin Port–Holyhead; Rosslare Europort to Pembroke as well as Dublin Port-Cherbourg in France.

Irish Mainport Holdings Ltd is a provider of marine services to Ship-Owners, Exporters, Importers, Oil Companies, Seismic Survey Companies and Offshore Wind. They were founded in 1957, so being over 60 years old, they have experienced and survived many different challenges and experiences.

Irish Sea Contractors is an innovative and dynamic organisation, specialising in subsea engineering. The services we offer include subsea cable installation, burial and protection services, cable repair and maintenance, offshore energy services, and marine engineering and diving services.

IShips provide an important distribution function for the global shipping and offshore industries. They have the financial resources to purchase ships and offshore units on both AS-IS Where is and Delivered basis.

Iran's national maritime carrier; has transported prohibited military-related cargo and facilitated shipments on behalf of and destined for Iran's Ministry of Defense and Armed Forces Logistics (MODAFL) and MODAFL subordinates, including the Aerospace Industries Organization (AIO), Defense Industries Organization (DIO), and Shahid Hemat Industrial Group (SHIG).

With a fleet of highly advanced offshore service vessels, Island Offshore is a provider of high quality solutions to the offshore oil industry. The main objective of Island Offshore is Safe and Sustainable operations.

Island Offshore With a fleet of highly advanced offshore service vessels, Island Offshore is a leading provider of high quality solutions to the offshore oil industry.

Isle of Man Maritime is a new not-for-profit company that has been established to promote, develop and support the strategic development of the Isle of Man's growing maritime cluster.

Italdraghe was born with the name of OMIM (Industrial Maritime Mechanical Workshop). It was only in the 1960s that OMIM became what Italdraghe is today. Since its origins, the company has understood the importance and potential of maintaining seas, rivers, canals and ports.

ITALMECAN is an engineering and manufacturing company with more than 65 years of experience, which develops applied engineering solutions under high quality standards for productive sectors such as: Maritime-naval, mining and industrial.

ITK Marine was founded in 2011 by two naval enthusiasts, with a great idea to bring their vision of innovative and high-quality services in the marine and offshore industry to life. Their goal is to achieve long-term customer relations.

ITOCHU provides trading services for more than 20,000 items and manages a portfolio of more than 40 group companies. ITOCHU operates in a wide variety of businesses, with particular strength in the machinery, energy & chemicals, electronics, food, forest products, chemicals, and textiles sectors.

IVECO, a pioneering commercial vehicles brand that designs, manufactures, and markets heavy, medium, and light-duty trucks; FPT Industrial, a global leader in a vast array of advanced powertrain technologies in agriculture, construction, marine, power generation, and commercial vehicles sectors.

Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company. Murphy Land and Marine offers services in the oil, gas, water and renewable energy markets, throughout the UK and internationally.

J.A Marine Services delivers exceptional marine services in the Philippines and International scale. They strive to provide top-notch services that meet the highest standards of quality and professionalism. Their commitment to excellence drives them to continuously improve and adapt to the ever-changing needs of the maritime industry. They aim to be the preferred choice for marine services worldwide.

J.D. Neuhaus in the Shipyards & Maritime Industry. The shipyard and maritime industry is one of the core industries for JDN equipment. Extremely heavy ship components such as hull sections, engines, propulsion systems, or the ship’s propeller are often lifted and carefully positioned in difficult to access and narrow environments.

JALVASUB Engineering Naval propulsion systems based on hydrogen technologies and fuel cells for submarines, electric vessels, and submarine and surface unmanned vehicle systems.

JFD is the world leading underwater capability provider, serving the commercial and defence markets with innovative diving, submarine and hyperbaric rescue, technical solutions and services.

James Marine, Inc. was founded by C. Ronald James in 1986. The family-owned company began with twenty-five employees and has a proud history of extraordinary service and growth to the inland waterways. With over 1,300 employees in the JMI family of companies, they have 12 locations across Kentucky and Louisiana. They proudly promote a diverse workforce with an inclusive culture that encourages creativity and a positive team environment.

James Troop & Co Limited core business is in sales of Engines, Generator Sets and CHP Systems. Installation, management and full after sales spare parts and service supplied 24/7 covering both Commercial Marine, Marine Leisure and Industrial applications.

Jana Marine Service provides first-class marine offshore Services to the Oil & Gas sector in the Arabian Gulf region and beyond. specialises in delivering Client-specific solutions.

Japan Marine Engineering was established in 1956 in Kobe, Japan to promote the sale of marine spares and equipment to local and overseas markets. They are importers/exporters for all over the world. They supply the Australian shipping and fishing industry, as well as many other countries.

Japan Marine Group is a trusted name in the marine industry and deal in Japanese, Korean and European spare parts. Their technically trained and competitive workforce strive to not only meet but exceed customers’ expectations. They are one of the most reliable suppliers, successfully serving the customers worldwide for last 18 years.

JMU is a pioneer company in the shipbuilding industry, with bases throughout Japan. Making full use of the wealth of experience and advanced technologies cultivated to date, they are aiming at further development. JMU was created by the merger of two leading-edge companies in the shipbuilding industry of Japan, Universal Shipbuilding and IHIMU.

Japan Radio is a group of communication technology professionals to work for connecting feelings and thoughts. They provide marine communication systems, marine solutions, maritime security solutions and much more.

JRTT jointly builds and owns passenger ships and cargo ships with coastal shipping companies. Since the establishment of this Joint Ownership Shipbuilding Scheme in 1959, JRTT has built over 4,000 ships. As the largest shipowners in Japan JRTT contributes to regional revitalisation and the streamlining of logistics.

JSTRA acts as a coordinator to promote tie-ups among the industries (shipbuilding and ship machinery industries and marine transport industry), academic communities (universities, research institutes and academic societies) and the administration (government and inspection organisations).

Javeler Marine Services LLC is a specialised dredging service company that has been moving the Earth for over 40 years.

JAK was established since 2006 in Dubai – UAE as a provider of specialized services for the shipping , marine and offshore operations within the Oil & Gas sectors. Their group was initially registered and operated mainly from Basrah, Iraq in 1969. They maintain offices both in Basrah and Dubai, UAE.