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.

The Oil and Gas Climate Initiative is a CEO-led initiative that aims to accelerate the industry response to climate change. OGCI member companies explicitly support the Paris Agreement and its aims. OGCI member companies explicitly support the Paris Agreement and its goals. As leaders in the industry, accounting for over 30% of global operated oil and gas, they aim to leverage their collective strength to achieve net zero emissions emissions.

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.

Okapi gathers companies dedicated to delivering superior performance throughout the energy value chain in West Africa. Its expertise in oil trading, supply chain management, and strategic advisory services combined with the on-ground knowledge of customers' needs and strategic partnerships with energy merchants is key to success in delivering energy solutions in Africa.

OLDENDORFF CARRIERS combines its history as a German shipowner with the network of one of the dry bulk operators. It currently controls some 750 chartered and owned vessels of 67 mio tdw, and we carry around 330 mio tons of raw materials and semi-finished products across the seven seas each year.

OLDENDORFF CARRIERS continues to deliver positive financial results and excellent operational performance. Having a strong financial position and low leverage – with long debt maturities and fixed interest rates – puts us on a sound financial footing.

Olympic Shipping takes pride in the great team of senior-level experts and highly promising young professionals they have assembled to guarantee a management structure that combines experience with passion and a commitment to continuous improvement.

Olympic Subsea ASA operates one of the world’s most modern and flexible fleets within subsea and renewable energy. Olympic plans to increase its presence in subsea and renewable in years to come, and the company is committed to remain in these sectors also when the oil and gas market improves.

Oman Shipping Company SAOC (OSC) grew out of the Omani government’s vision to develop a national fleet catering to the maritime transportation requirements of the country’s rapidly growing hydrocarbon, petrochemical, mining, and metallurgical industries. OSC's fleet has evolved to include Very Large Crude Carriers (VLCCs), Product Tankers, Chemical Tankers, LPG Carriers Very Large Ore Carriers (VLOCs), Bulk Carriers, and much more.

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.

Onda Srl constant updating in the field of expert services is focused on innovative management of mass claims, such as the possibility of specific compensation or remote assessment through smart applications.

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.

With the Head Office located in the city of Kobe in Hyogo Prefecture and their manufacturing bases in the city of Onomichi in eastern Hiroshima Prefecture, they are exploiting the full technology and knowledge gained over those long years of the history as they aim for the world’s highest production yield per unit area of plant site.

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.

Onursan was founded in 1983, as the first ship fire fighting service company in Istanbul, Turkey. After several years company established a liferaft service station and started lifeboat and calibration services.

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.

Optimarin was established in 1994 and is a pioneer in the industry, always being one of the pioneers in bringing innovative solutions to the market that works. Optimarin not only delivers an approved system in compliance with all international regulations on Ballast Water Treatment but also delivers customer satisfaction with a superbly engineered and robust system that works and is thoroughly field-proven.

Orbital Marine Power (Orbital) is a visionary, Scotland-based, renewable energy company focused on the development and global application of its pioneering floating turbine technology. Orbital’s innovative, approach de-risks the commercial extraction of low carbon energy from fast-flowing currents by offering low manufacturing and installation costs as well as the ability to carry out inexpensive, quick servicing on all major turbine components.

ORCA believes that the only way to protect whales and dolphins is to identify areas where they’re vulnerable and study their habitats. That way, they can protect these places by changing the way we use them. That includes shipping, fishing, noise pollution, marine litter and more. Best of all, this information can be shared and used across the globe. Providing a local solution to a global problem.

Orca AI advances the maritime industry by providing intelligent navigation solutions, preventing collisions and saving lives. They ensure safety in waterways and deep waters by staying committed in the vision to reduce human-caused errors through intelligent automated vessels.

ORCA MARINE was founded in 2007 by a group of marine professionals to serve the Customers in marine industry and shipping providing maritime marketing services of the highest standards and representation of the Shipyards Worldwide within the geographical territory of Lithuania, Latvia, Estonia, Poland, Russia and Ukraine.

Orwell Offshore was established in the belief that remarkable results will be delivered through teamwork, dedication and commitment. Their passion for tackling big challenges, dedication and teamwork could make us part of the solution.

OSM Thome is the result of a joint merger of two industry giants OSM Maritime and Thome Group in 2023. As the provider of technical and digital asset management services to the offshore and maritime industry, they work closely with their customers and partners to ensure their success 24/7.

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.

Ovatek manufactures the only “safe haven” self -righting rigid liferafts in the world. These unique products significantly improve a user’s chance of surviving a sea disaster. The company was founded in 1995. Its head office and manufacturing facilities are located in a 1,500 square meter facility in Bas-Caraquet, New Brunswick, Canada.

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.