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.

The Isalos.net initiative has as its main purpose the connection of the maritime community with the new generation while at the same time it is a knowledge platform for the developments and experiences from the maritime industry and maritime daily life.

Italian Propellers is a company that designs and manufactures propellers, rudders, propeller shafts, bushings and brackets, and has over 35 years of experience in the marine industry. The highly innovative products are designed and constructed by choosing the most suitable materials and advanced technologies.

Izumi Steel Works Ltd. was founded in 1961. The Company's line of business includes the manufacturing of steel castings including alloy, bushings, and rolling mill rolls.

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.

James Fisher is a global provider of specialist services to the marine, oil & gas, and other high assurance industries worldwide. They offer innovative marine solutions and specialised engineering services, along with comprehensive products, services and support to the oil and gas, marine renewables, shipping and defence industries.

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.

Japan CCS Co., Ltd (JCCS) was founded in May 2008 when a group of major companies with expertise in CCS-related fields, including electric power, petroleum, oil development, and plant engineering, joined forces to answer the Japanese government’s call for development of CCS technology as a countermeasure against global warming. JCCS is a unique company in the world to be founded and dedicated explicitly to developing integrated CCS technology.

Japan Engine Corporation is involved in the development, design, manufacturing, maintenance, repair, sale and licensing of engines and other components. From development to after-sales service, they are the only company in the world that has an integrated system of the UE engine, which is one of the world's three largest brands of low-speed marine engines.

jbj Techniques Limited offers a high level of in-house expertise plus a huge selection of products to meet a wide range of customer applications. From specification, through technical advice and manufacture to after-sales support, jbj Techniques provides a comprehensive and valued service to the mechanical power transmission and hydraulics industries. The company fields a UK-wide team of technical sales engineers to ensure business continuity.

Jefa Rudder (Jefa Marine A/S) is located in Greve near Copenhagen in Denmark and has been manufacturing rudder products since 1980. More than 20.000 rudder and more than 150.000 rudder bearings have left the Jefa factory since 1980.

JERA is the largest power generation company in Japan, producing about 30% of Japan's electricity.

JET-TECH (Jet-Tech Propulsion, LLC) is a volunteer network of local Information Technology (IT) professionals providing services to help people navigate the IT profession. They are experienced professionals who offer guidance to those considering entering the field, those with any amount of experience, and those looking to transition their careers.

OUCO is a Chinese manufacturer of marine cranes with over forty years of industry experience. They specialize in producing various maritime equipment, including marine cranes, winches, grab buckets, container spreaders, davit, and port hoppers. Their company has a workforce of 200 employees and a technical team of 20 experts. They have a global presence and are well-known in the Middle East and Asia.

Jumbo is a heavy lift shipping and offshore transportation & installation contractor. Jumbo has been developing pioneering solutions for ocean transportation for more than 50 years. Since 2003, building on their heavy lift capability, Jumbo rapidly established a sound track record in the offshore subsea installation market.

Kaiko Systems is an operational intelligence company that leverages manual operations to generate real-time insights for shipping companies to prevent incidents, increase operational efficiency, and reduce maintenance costs. With Kaiko Systems, crews are able to save 50% of the time on deck operations.

Founded in 1989, Kalgin Global Logistics has grown from a team of two with a small office on Sydney’s North Shore, to a passionate team of more than 40 professionals with offices in global locations, including Auckland, Brisbane, Melbourne, Sydney, Suva & Lautoka.

Kanfer Shipping AS (Kanfer) is an innovative Norway-based developer of small-scale LNG sea transport and bunkering vessels, maritime LNG break-bulk and storage solutions. Unique designs drive down the cost of infrastructure and lower emissions from operations, providing a compelling alternative to traditional, capital-intensive onshore LNG facilities.

Kangrim Heavy Industries Co., Ltd.'s line of business includes manufacturing fabricated plate work products, such as boilers.

Kargosurge is a renowned logistics company with a strong focus on providing top-notch services to its clients. With years of experience in the industry, they have developed a deep understanding of the complexities involved in international shipping and logistics. Kargosurge offers a wide range of services that cater to the diverse needs of businesses across various industries.

Karmøy Winch AS is a company designing and fabricating complete deck equipment solutions for tugs, anchor-handling - supply vessels, offshore construction vessels, reseach vessels, fishing vessels and oilrigs. The equipment is delivered under the product name KARM. Typical products are winches, Karm Fork, towing pins, fish pumps, deck cranes. They are a manufacturer of deck-machinery for fishing, towing and anchor-handling vessels.

Karstensen Kuldeteknikk AS are a global supplier of industrial freezing systems. Their extensive experience enables them to deliver different products to different industries. Fish processing, bakery, dairy and other are examples of this.

Together with about 100 group companies in Japan and overseas, Kawasaki Heavy Industries oversees the formation of a 'technology corporate group'.​ Their technological capabilities, polished over a history that exceeds a century, send diverse products forth into wide-ranging fields that go beyond land, sea, and air, extending from the ocean depths to space.

KBR, Inc. delivers science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 29,000 people worldwide with customers in more than 80 countries and operations in 40 countries.

Kelvion is the leading global developer and manufacturer of heat exchange solutions. Their extensive portfolio serves a wide range of applications such as data centres, blockchain technology, hydrogen production, heat pumps, marine, HVAC, refrigeration, and the food and beverage industry.

Kenon Holdings Ltd. is a holding company that operates dynamic, primarily growth-oriented, businesses. The holdings are at various stages of development, ranging from established, cash generating businesses to early stage companies. Their primary business is OPC Energy, a power generation company, in which they have approx. 58% equity interest. They also hold a 28% stake in ZIM, a global container shipping company.

Klein Marine Systems, Inc. is the supplier of side scan sonar equipment and waterside security and surveillance systems in the USA. Klein’s side scan sonar systems are deployed by governments, navies, port authorities, surveyors, oil companies and universities worldwide. Klein manufactures and supports HarborGuard integrated waterside security and surveillance system which combines radar, infrared and daytime video surveillance technology.

Kongsberg Maritime is a world leader in marine technology. With an extensive portfolio of innovative and integrated products and solutions, Kongsberg Maritime delivers efficiency, reliability, flexibility, and environmental sustainability to enhance the business of its customers.

Kongsberg Satellite Services (KSAT) have been pioneering the ground segment business since 1968, and have introduced the near real-time concept within operational monitoring services as early as the 1990’s. They are a global provider of communication services for spacecraft and launch vehicles from their uniquely located global ground network, and provides advanced monitoring services with rapid delivery based on multiple satellite missions.