At MML Marine, they are the leading specialist fabricators and suppliers of a wide range of marine doors, including: shipbuilding and offshore doors, offshore fire doors, marine fire doors, watertight doors, A60 doors, A60 windows, H120 and H60 blast rated doors.

McLachlan Marine is one of the largest independent workboat operators in the North East of Scotland, based in Aberdeen operating a growing fleet of over 10 Workboats.

MEKE was founded by Mehmet Kemerli, a maritime and environmental lover and entrepreneur who wanted to set up his own business after leaving Shell Oil Company, as a private company in 1977 in Ayvansaray, Istanbul's shipyard region at that time. The company is into Maritime transportation and is based out of Turkey.

Meratus is an Indonesian shipping company providing point-to-point transportation solutions. Operating a network of liner services connecting major ports in Indonesia and supported by owned offices throughout Indonesia, Meratus places a strong emphasis on safety, quality, and customer focus. Established in 1957 Meratus'​ business has grown and now covers several sectors of shipping and transportation.

Meriaura Ltd is a Finnish family-owned shipping company with a fleet of 18 vessels operating in the Baltic, North-Atlantic and Mediterranean Seas. Their fleet consists of bulkers and multipurpose deck cargo carriers.

Meridian Marine Limited provides Maritime services and is based out of United Kingdom.

Mersey Maritime was established in 2003 to represent and act on behalf of the 1700 maritime-related companies across the Liverpool City Region. With over 200 members, they are considered to be an excellent example of a regional maritime cluster. They organize a range of monthly networking and training events and deliver forums for their members to shape the future of the maritime sector.

Metal Shark is a leading designer and builder of custom vessels for commercial, defense, and law enforcement applications worldwide.

At MetalCraft Marine Inc, their vision is to be recognized as a world leader in the design and manufacture of custom aluminum boats for the government and commercial markets, to the benefit of their customers, employees, shareholders and the communities in which they operate.

MEYER WERFT GmbH & Co. KG based in Papenburg was founded in 1795 and is in its seventh generation of family ownership. MEYER WERFT has achieved an excellent worldwide reputation in recent decades for constructing and building special-purpose ships. The company is especially well-known due to the construction of large, modern and sophisticated cruise ships.

MISC Group is a world leading provider of international energy related maritime solutions and services. The principal businesses of the Group comprise of energy shipping and its related activities, owning and operating offshore floating solutions, marine repair and conversion, engineering and construction works, integrated marine services, port management and maritime services as well as maritime education and training.

Mitsubishi Corporation (MC) is a global integrated business enterprise that develops and operates businesses together with its offices and subsidiaries worldwide, as well as with its global network of around 1,700 group companies. MC has 10 Business Groups: Natural Gas, Industrial Materials, Chemicals Solutions, Mineral Resources, Industrial Infrastructure, Automotive & Mobility, Food Industry, Consumer Industry, Power Solution,s and Urban.

Mitsubishi Heavy Industries (MHI) Group delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.

MOL is a pioneer company in the ocean shipping industry, operating a fleet of about 800 vessels to transport various commodities such as resources, energy, raw materials, and products. On top of the traditional shipping businesses, MOL will develop a variety of social infrastructure businesses to meet the evolving social needs.

Moen Marin is the world’s largest supplier of working boats to the aquaculture industry. They lead the way in electrification and digitisation of the fishing and aquaculture fleet. Their main products in this strategic area in the years to come will be service and work boats to the fish-farming and entrepreneur industry, diving vessels, tugs and fishing boats.

Mooney Boats are the largest ship building and restoration company in North West Ireland. They specialize in Boat Building, Engineering, Production, Refurbishment, Fabrication, Repair and Maintenance of Marine and Industrial Products. Their services include steel aluminum stainless fabrication; overhauls, repair and maintenance, hydraulics, electronics, pneumatics, installation of equipment and machinery, cleaning and painting.

Moravia Yachting specialises in providing independent and tailored advice on owning and chartering superyachts. They specialise in providing their customers with qualified, independent and tailored advice on owning and chartering superyachts of all sizes.

The Maritime Agency in Gdynia was established in 1951 and represented foreign shipping lines, shipowners and insurance clubs (P&I), and also provided agency services for ships, over time expanding its specialization to include forwarding services and job placement for Polish seafarers.

MPC Container Ships ASA owns and operates a fleet of container ships specialising in serving intra-regional trade lanes.

The shipyard MTG DOLPHIN is located at the northern shore of Varna lake, right in the middle between Varna East and Varna West port, with unrestricted access to the Black Sea. A team of over 600 professionals with considerable experience in the industry work hard for delivering quality shipbuilding, repair and docking service to their customers from all over the world.

Muehlhan provides surface protection and industrial services in four main categories: Wind, oil and gas, marine and construction. They are their local partner no matter where they are in the world.

Multimarine Manufacturing LTD is based at The Multihull Centre which is the oldest multihull specialist boatyard in Europe. The Multihull Centre is also home to Dazcat Designs - designers of sleek, high performance racer-cruisers. Together they are able to provide a complete service including design, build, storage, brokerage, components.

Murakami Hide Shipbuilding is located in Hakatajima, Imabari City of Ehime Prefecture, one of the maritime city. Adhering to the motto "Sincerity and Harmony", Murakami Hide Shipbuilding has been active in the shipbuilding industry for over a century since its founding in 1917 (Taisho 6 in Japanese year).

MWD was formed in 2004, based in Hull, East Yorkshire. The senior employees have a combined 50 years experience in the design of electrical control panels and manufacturer of bespoke control systems and marine handling equipment to customer specific requirements.

The Namibian Ports Authority (also referred to as ‘Namport’ or the ‘Authority’) was established by the Namibian Ports Authority Act, No. 2 of 1994. It is recognised as a public enterprise in terms of the Public Enterprises Governance Act, No. 1 of 2019. Namport aims to provide excellent port services to all seaborne trade, creating sustainable value for all their stakeholders.

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.

National Maritime is the Largest UK Maritime SME Network Supporting business & collaborations through funding, expertise & talent.

Nauset Marine is widely recognized as one of the most knowledgeable and well-respected marine facilities in Massachusetts. Through the years, Nauset Marine has consistently provided the finest products and services in the industry. In addition to their large selection of new, used and brokerage boats through their sales offices on Cape Cod in Orleans and Pocasset.

Nauti-Craft Ltd is a marine technology company focused on the design and development of the Nauti-Craft™ marine suspension system.

Nautic Africa is a shipyard building high quality performance vessels for the commercial B2B market and Governmental bodies. Nautic Africa focuses on supplying products into AFRICA and has an established network in West and East Africa. Nautic Africa is helping to meet the continent's growing demand for quality vessels designed economically, environmentally and in socially responsible ways.