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.

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.

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.

Jemar Norpower AS have been a trusted supplier of Workboats to harbours, oil and gas offshore industry for more than 50 years. Having a maritime connection back to 1917, Jemar Norpower AS has an enormous and complex knowledge about boat production.

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.

The scalability of Jets™ vacuum solutions allow their use in virtually any scenario, from one-toilet cabin systems, to the world's largest cruise vessels.

Jotron and its subsidiaries offer customer services and support. Jotron UK and Jotron Asia both have Shore Based Maintenance (SBM) capabilities. Jotron also has authorized and dedicated partners and service providers strategically located around the world. Below, is an overview of the GMDSS and AIS distributors and partners.

Jotron and its subsidiaries offer customer services and support. Jotron UK and Jotron Asia both have Shore Based Maintenance (SBM) capabilities. Jotron also has authorized and dedicated partners and service providers strategically located around the world. Below, is an overview of the GMDSS and AIS distributors and partners.

The Jotun Group is a matrix organization with sales of decorative paints and marine, protective, and powder coatings organized into seven regions. The company has 38 production facilities in 23 countries, with 67 companies in 47 countries, and represented in more than 100 countries overall around the world.

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.

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.

Karmsund Maritime Offshore Supply AS is a Norwegian technology company situated at Haugalandet, the west coast of Norway. KaMOS specializes in developing and producing time, cost and safety efficient solutions and products, serving both onshore and offshore industries worldwide.

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.

From sustainable seaweed production to combatting microplastic pollution to offshore wind power infrastructure, Katapult Ocean’s portfolio companies simultaneously represent the vanguard of impact ocean tech and the greatest opportunity for investment.

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.

Klaveness Combination Carrier ASA owns and operates a fleet of combination carriers. Its unique fleet is the most CO2 efficient deep-sea transportation system in the world emitting up to 40 % less CO2 compared to standard vessels. The fleet will grow even further in the coming years through the extensive new building program.

Kleven Group is the parent company for Kleven shipyard and Myklebust shipyard, and is one of the largest companies in Ulsteinvik besides Rolls-Royce Marine and Ulstein Group. Kleven Group had about 450 employees in 2011. The Kleven Group operates businesses within construction, repair and remodeling of vessels in Ulsteinvik, at Gursken and at rented facilities on Rovde.

Kongsberg is a global technology corporation delivering mission-critical solutions with extreme performance for customers that operate under extremely challenging conditions. The group consists of three business areas: Kongsberg Maritime, Kongsberg Defence & Aerospace and Kongsberg Digital.