Ocean & General Maritime Agencies Ltd. is an independent Irish liner agency operating since 1979. In 1988, the company became agents in Ireland for the Grimaldi Group. As Europe's largest RoRo/Container shipping line; Grimaldi link Europe to Africa and South America and extensively connect North/South Europe to a huge variety of Levant, North African and Mediterranean ports.

Ocean Data System is a firm specialised in marine electronics and rugged computers based in Lorient (Brittany, France).

Ocean Hyway Cluster is Norway's network for hydrogen-based solutions for the maritime sector. They work closely with the industry to exploit the commercial opportunities of new hydrogen technology solutions to make Norway a global leading maritime hydrogen player.

OceanGate Expeditions is dedicated to direct human exploration of the undersea world. Not satisfied with scratching the surface of the ocean near the shoreline, OceanGate Expeditions uses manned submersibles to create expeditions at depths far deeper than can be reached with SCUBA.

OceanSTAR Marine & Offshore Pte. Ltd. is a Engineering Consultation company in Marine & Offshore Industry, providing professional Engineering Design, Analysis, Site Survey and Construction Support Services.

OceanWise provides applications, services and tools that enable safer and smarter management of marine operations. They specialise in marine environmental monitoring; are the leading provider of marine mapping data worldwide; and are the experts in marine data management

OCTOPUS Systems was founded in 2013 by a team of experienced security and technology experts with the mission of creating a new breed of smart, agile, and easy-to-deploy Command and Control software system.

Ocyan are a company with sustainable attitude and knowledge to provide solutions for the offshore oil and gas industry in Brazil and abroad.

Offshore Ship Designers (OSD-IMT) is an integrated design company with solid engineering capacity and a strong presence in the offshore markets. They design tailored vessels, offer various marine consultancy services and provide innovative conversion engineering.

Ofgem is Britain’s independent energy regulator. Their role is to protect consumers now and in the future by working to deliver a greener, fairer energy system. They are a non-ministerial government department and an independent National Regulatory Authority.

Oilmar DMCC was established in Nov 2015 with the aim to provide specialized chartering and tanker operations. Over the years, Oilmar has expanded into trading and various projects in the energy sector. Oilmar provides services in more than 50 countries across the globe.

Ok Tedi Mining Ltd (OTML) operates the Ok Tedi Mine, the longest running open-pit copper, gold and silver mine in Papua New Guinea. OTML is a 100 percent Papua New Guinea (PNG) owned entity with 67 percent direct shareholding by the Independent State of PNG and the people of Western Province holding a 33 percent interest.

On The Water Marine Services specialises in providing expert mobile boat repair services to keep the vessel in top condition. From routine maintenance to major repairs, their team has the knowledge and skills to handle any job. They use only the best materials and parts, and take pride in their attention to detail and commitment to quality.

Onboard Monaco is a strategic consulting firm that provides unique combination of business development and corporate strategy in the yachting sector. The company was established in the Principality of Monaco in 2015 and operates as a highly specialised company in a truly niche sector offering unrivalled expertise when it comes to business strategy, marketing and brand management in the superyacht world.

One Sea has successfully supported the implementation of autonomous ship technology since 2016. The objective of One Sea is to enable the transition from traditional technologies and operations to more automated and optimised solutions in maritime transport.

OneWeb is a global communications network powered from space, headquartered in London, enabling connectivity for governments, businesses, and communities. It is implementing a constellation of Low Earth Orbit satellites with a global network of gateway stations and a range of user terminals to provide an affordable, fast, high-bandwidth, and low-latency communications service, connected to the IoT future and a pathway to 5G.

Ontario Shipyards is a wholly Canadian-owned company operating three of the largest ship construction and repair facilities in Canada. Founded in 1987, Ontario Shipyards has grown into the largest Canadian ship repair and construction company on the Great Lakes. They are trusted partner of the Canadian Coast Guard and the Canadian-flagged commercial fleet.

Powered by Vision AI, Oosto enables enterprises to better protect their customers, guests and employees by identifying security and safety threats in real-time without compromising on fair and ethical use.

Opentop is the innovation HUB of Valenciaport, which seeks to become a global benchmark in open innovation in the port logistics sector, fostering the creation and growth of innovative technology companies. They are connected with major global companies, top notch mentors, and a vibrant startup ecosystem in one of the most iconic Mediterranean cities.

Optical Scientific, Inc. was founded in 1985. They are a research, development, engineering, and manufacturing firm located in the I-270 high technology corridor outside of Washington, DC, USA. They design and build the most advanced optical instruments in the world for measuring air and gas flow, wind, turbulence, liquid and powder tank levels, visibility, and precipitation amount and type.

Oriental Motor manufactures various compact electric motors, linear/rotary actuators, and motion control products for machine builders in many industries, while focusing on total service and education. They offer an extensive product line-up of 50,000+ standard products to meet the widest market demands.

Orion Maritime was established in February 1999 with the aim of providing cost effective services to their valued clients and to be a recognised company in the maritime and offshore industry. Maritime service and consultancy is their core business and they are committed to provide maritime solutions at the highest level of professionalism.

Founded in Australia, Orion Shipping began as a small, dedicated freight service provider with a simple goal: to make shipping more reliable and accessible for businesses of all sizes. Their passion for logistics and commitment to service excellence have fueled their growth. They proudly operate as a trusted global logistics partner, supporting clients across a wide range of industries with tailored shipping and supply chain solutions.

Since its founding in 1964 as a leasing company, ORIX has expanded its operations to neighbouring domains backed by the accumulated expertise. ORIX will continue to anticipate market trends in the ever-changing social and business climate. Through provision of innovative financial services at a global scale, they cultivate new businesses and opportunities for investment, thereby contributing to society.

Osprey Technical Consulting Ltd. is one of the most respected marine electronics consultancies in the world. Their engineers work for in compliance of British Marine Electrical and Electronics Association and National Marine Electronics Association codes of practice. Training is a priority at Osprey, ensuring the team is leading the marine industry innovation and that all projects are in expert hands.

OSS Maritime Group Pty Ltd is an Australia-based, pioneering marine supply and repair organisation with an excellent 20 plus years records in Maritime Industry. OSS prides itself on its’ and quality services. We have been increasing our market in Australia and overseas.

Oxley Marine Engineering sells and repairs engines in South West Devon. Their workshop is in Brixham and they are an authorised Beta Marine, Perkins and Separ supplier. They also sell pre-owned engines that they test and offer breakdown services. They work primarily on diesel engines for private and commercial boats, and supply Perkins and Beta Marine engines, which they believe last over time.

Ørsted’s vision is a world that runs entirely on green energy. They develop, construct and operate offshore and onshore wind farms, solar farms and energy storage facilities, bioenergy plants and provide energy products to the customers.

Østensjø Group is a provider of offshore- and towage services worldwide. It operates a fleet of 31 modern vessels, including 20 tugs/mooring vessels, 8 offshore service vessels, including 2 SOVs operating in the renewable market, and 1 accommodation vessel. The Østensjø group also delivers crew services to the shipping industry.

Paal is an electrified watercraft producer for recreational & commercial markets. It aims to provide affordable, trendy & sustainable marine lifestyle to consumers with its high-end performance, tech & comfort. They are an experienced & award winning team, ready to disrupt the industry.