National Historic Ships UK is a government funded, independent organization which gives objective advice to UK governments and local authorities, funding bodies, and the historic ships sector on all matters relating to historic vessels in the UK.

The National Oceanography Centre is an independent self-governing organisation - a charitable company limited by guarantee. The NOC is funded by UK Research and Innovation to work on National Capability programmes and manages on its behalf, the National Marine Equipment Pool - Europe’s largest fleet of autonomous and robotic vehicles, and two states of the art research ships RRS Discovery and RRS James Cook.

Nautilus International is an independent, influential, global trade union and professional organisation, committed to delivering high quality, cost-effective services to members, and welfare support to necessitous seafarers, their dependants and other maritime professionals.

Navarm Ltd is a multifaceted support Company offering a full range of services from discreet behind the scenes client support to full turnkey project solutions. Trusted by globally recognised companies to deliver products and services to exacting timelines.

Navigator Gas is a shipping company owning and operating the world’s largest fleet of handy size liquefied gas carriers. With their 56 sea-going ships, they provide international seaborne transportation and regional distribution of liquefied petroleum gas (LPG), petrochemical gases and ammonia for energy companies, industrial users and commodity traders.

Neptune Energy is an independent oil and gas exploration and production company with a regional focus on the North Sea, North Africa and Asia Pacific. Building on 50 years'​ experience from activities in 11 countries worldwide, their vision is to create the leading international independent E&P company within the next 5 years.

Newport Shipping UK LLP (“Newport” or the “Company”) was established in the UK in 2011 with vessel management, design, construction and repair experience dating back to the 1960s. The Company is active globally with the services of dry-docking, retrofit, repair and conversions with a low carbon focus in 15 yards with 38 docks capable of handling approximately 2,500 repairs annually of all vessel classes and sizes.

Norfolk Marine (Chandlers) Ltd is a family run business established in 1984. It is one of the largest independent marine chandlers in the UK, offering a range of more than 35,000 products. Their 18,000 square feet shop is located in Hoveton, Near Wroxham, Norfolk and supplies retail consumers and marine industry businesses, servicing the latter via their dedicated trade counter and van delivery service.

Founded in 1886, North Star owns and operates the largest wholly UK-owned fleet engaged in the UK’s offshore industry in the North Sea, providing comprehensive operational experience of the seas around the UK coastline. The clients rely on advanced vessels and the unrivalled experience of highly trained crews to provide offshore infrastructure support 24/7 365 days of the year.

NORTHERN MARINE GROUP is committed to providing outstanding ship management and marine services, putting the quality of their service and the safety of the people at the heart of everything they do.

Heerema Marine Contractors delivers innovative and sustainable solutions for the transportation, installation, and removal of offshore infrastructure. The Heerema companies engineer, design, construct, transport, install, and remove offshore structures for the offshore energy industries.

Oceandiva London is the first revolutionary CO2-neutral event venue on the River Thames. Spanning across three decks, this unique blank canvas venue provides clients the ability to host sensational events on the river, whether static or sailing, in the heart of the City.

Odfjell Drilling’s commitment to sustainability is based on high ethical standards, integrity, respect for people, and care for the environment.

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.

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.

Orkney Harbour Authority is responsible for the safe and efficient operation of 29 piers and harbours, including Scapa Flow. It is owned by Orkney Islands Council, who are the statutory Harbour Authority, and is one the UK’s most diverse commercial ports.

Padstow Boatyard are experienced commercial fishing boat builders, offering build, repair and refit services to UK and overseas fishermen in the heart of Padstow, Cornwall.

Pascoe’s luxury tenders are designed and built to full superyacht standard. At the dockside, they truly represent the precision detailing and inherent quality of their mothership. Designed and manufactured in-house in the UK by the highest skilled craftsmen, their tenders demonstrate minute attention to detail, superb style and exemplary performance.

PD Ports is one of the UK’s biggest and most progressive port groups with a reputation for excellence gained from decades of experience and a highly skilled workforce. Headquartered in the Tees Valley, PD Ports operates from 12 key ports and logistics centres across the country to keep vital supply chains moving.

Peel L&P are an ambitious regeneration business with generations of history, heritage and expertise in their DNA. First established in 1972, Peel L&P is now responsible for some of the most transformational development projects in the United Kingdom. Their specialist teams have a proven track record in delivering high-quality, legacy projects across land, property, water and airspace.

Part of the Peel Group, their business is much more than just running successful port operations. They pride themselves on the diversity of what they do throughout their terminals across the UK and Ireland. These include handling a wide range of commodities, managing short sea shipping lines, providing global port management consultancy services, running port-centric warehouses, and supporting renewable energy developments.

Pendennis Shipyard in Falmouth operates in the 30m-100m superyacht custom build and refit market, meeting the specific needs of each of each client and delivering a world-class service.

Petrofac are a major international service provider to the energy industry, with a diverse client portfolio including many of the world’s renowned energy companies. Petrofac designs, builds, manages and maintains oil, gas, refining, petrochemicals and renewable energy infrastructure. Their purpose is to enable their clients to meet the world’s evolving energy needs.

Pioner was founded in 1959, and has since become the best-selling boat brand in Norway. With stable designs and high build quality, their boats are the natural choice for both private individuals and professionals on the water.

Plymouth Marine Laboratory (PML) is a world-leading research organisation, and registered charity, undertaking pioneering marine research for the benefit of us all.

Pontoon Provider are a dynamic, privately owned, floating modular platform supplier and marine specialist. As a 3rd generation on-water service provider, their ambition is to offer high quality, cost-effective, on-water solutions for any size project. From a simple platform to a structurally amazing design, Pontoon Provider are the UK’s on-water point-of-call.

The Port of Cromarty Firth’s main concern is for the safety and security of the people and vessels that visit the Firth. The Port’s objective is to sustainably develop, improve and safeguard Cromarty Firth for the benefit of all its diverse stakeholder groups, by utilising the natural deep sheltered waters of the Cromarty Firth and first-class modern facilities.

Located in the North East of England, the Port of Hartlepool serves as one of the primary Frontier Port operations on the River Tees, and is one of the UK’s closest ports to some of the world’s largest proposed and active offshore projects.

Port of Heysham is a story of continuing expansion, investment and success. Its ever increasing importance as a port, particularly in relation to trade with Ireland and the Isle of Man, is clearly demonstrated by the spectacular growth in the tonnage that it handles. With 1,000 metres of berths, including three specifically for roll-on roll-off traffic, the Port serves a number of daily freight ferry services to Dublin, Belfast and Warrenpoint.

The Port of Milford Haven is a leading UK port handling over 30 million tonnes of cargo annually. Their dedicated, experienced teams provide expert solutions in marine operations, cargo handling, shipping layover, marine renewables, freight and passenger ferry services, fisheries, commercial property management, leisure and retail.