Maritime Anti-Corruption Network (MACN) is a global business network working towards the vision of a maritime industry free of corruption that enables fair trade to the benefit of society at large. Established in 2011, MACN is comprised of vessel owning companies within the main sectors of the maritime industry and other companies in the maritime industry including cargo owners and service providers.

Maritime London is the promotional body for UK-based companies providing maritime professional services to the international shipping industry. Funded by well over 130 companies and organisations from a wide range of disciplines, Maritime London ensures that the UK remains a world-beating location to base a maritime-related business and to conduct maritime trade.

Maritime Partner AS was started in 1994 in Alesund, Norway, but can trace its history to 1980. From the beginning the main products has been high speed craft, with focus on offshore rescue craft. In the following years, the company expanded the business rapidly and in 1999 UFAS Holding was acquired. It is now a 100% owned subsidiary of Maritime Partner.

Maritime Partners is a privately held company leading the way in maritime assets, vessel leasing solutions, and construction financing in the United States. They provide transportation opportunities to the maritime industry, offering tailored leasing services to operators across a full spectrum of client credit quality.

Maritime Protection is one of the world’s leading companies within engineering, design and fabrication of Inert gas systems for the offshore and shipbuilding industry. The company, which is fully owned by Survitec, has for 50 years been a company specialising in nitrogen and inert gas system for the marine and offshore industries. Maritime Protection delivers N2, IGG, FGS, Dry IGG and custom-made systems for all applications.

Maritime Research and Innovation UK (MarRI-UK) are a collaborative innovation vehicle for the UK industry and academia to jointly tackle innovation and technology challenges. They focus on research and innovation within mid TRL (3 – 7) levels to address the opportunities between 'discovery and research' and 'commercialisation' of Maritime Technologies and Systems.

Maritime Skills Alliance designs and promotes qualifications and apprenticeships for the UK’s maritime sector. WThey have developed a suite of interlocking standards and qualifications – MSQs, “Maritime Studies Qualifications” - which enable employees to progress both within their specialism and between sectors.

Maritime Survey Services Ltd. are a provider in subsea services. With a world class inshore survey vessels, remotely operated vehicles and an array of survey sensors, their team works with the latest technology and expertise to deliver subsea solutions for a wide variety of marine services and applications.

Marsun is an expert in shipbuilding with high-quality materials, which are Naval and Patrol Vessels, Commercial Vessels and Yachts, including Design and Consulting Services according to customer requirements.

Martide's cloud-based maritime crew management solution helps to optimize processes. Their integrated seafarer database, crew planning, vessel management and seafarer self service portal makes crew deployment, recruiting qualified seafarers and retaining the existing pool more efficient for staff and crew both onboard and ashore.

Marubeni Corporation is one of Japan’s largest trading companies (sogo shosha) with more than 160 years of history. Headquartered in Tokyo, Marubeni continues to expand its businesses across the globe, with a presence in over 65 countries and more than 130 branches and offices worldwide.

Mash Energy is a renowned manufacturer of automatic single fuel injector cleaning machine, internal combustion engine & furnace burners.

Masson Marine, as a leader in Marine Propulsion technology, designs, manufactures and commissions a full range of marine gearboxes with hybrid systems, brakes whether integrated or external, shaft lines and controllable or fixed pitched propellers.

Maven Trading & Marine Services Inc, designed as one stop source for new, reconditioned and second hand marine spare parts & machinery, located in Chittagong port of Bangladesh Maven is now renowed to maritime industry as reliable partner of many ship owners, ship spare parts trader and repairer company for second hand ship spare parts trading and supply business since 2007

Max Groups is most reliable & inexpensive solution to rubber airbag ship launching and marine products like solid marine fenders, pneumatic rubber fenders and electric / hydraulic winches. Their products are reasonably priced and well known for their outstanding quality.

The Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping ensures real climate action. They are a not-for-profit, independent research and development centre, looking to accelerate the transition towards a net-zero future for the maritime industry. With their partners, they drive and facilitate the development and implementation of new technologies and build confidence in new concepts.

MBDA is the only European group capable of designing and producing missiles, and missile systems, to meet the whole range of current and future needs of the armed forces. They are an integrated defence company that provide missiles and missile systems for each branch of the armed forces (air, sea, land).

MCS International Marine Services BV are specialised in Ocean Towage & Salvage, Offshore Chartering, Heavy Lift / Project Cargo Transportation and Sale & Purchase. They are active as independent Brokers and Contractors in the global maritime industry for more than 30 years.

MD Shipbroking is an independent boutique shipbroking firm, offering a competent, reliable and client-orientated service, sounding out all possibilities of the shipping market with a long standing experience in the Sale & Purchase of merchant vessels, including contracting of New buildings, sales for Ship recycling and Valuations.​

MDL, Part Of Renishaw plc designs and manufactures a range of ruggedised time of flight OEM laser sensors and systems for use in harsh environments. The company also produces pencil beam, fanned beam and scanning laser variants that allow for multiple traffic management applications, including vehicle detection, red light violation, over-height detection, camera triggering, ANPR, vehicle profiling and many more.

MDS Europe Ltd. are specialists in high performance food grade lubricants, oils & greases.

Mecal Ltd was founded in 1993 as 'Marine Engineers Certifying Authority Ltd' by the Institute of Marine Engineering, Science & Technology & we still maintain close links with the Small Ships Group of the Institution. Since then MECAL has grown to become one of the leading Certifying Authorities for commercial vessels & workboats up to 24m load line length and for larger vessels under specific delegation.

Mechan Ltd is a globally renowned company in the design, manufacture, installation and maintenance of handling equipment for rail depots. Engineered to withstand the constant demands of rail depots and workshops, their lifting and handling equipment is built to outperform, outlast and outsmart their rivals.

Meercat Boats is the United Kingdom's major builder of versatile steel workboats. Their versatile single and multi-hulled workboats have been sold around the world. The road transportable version offers an effective solution to the problems of fast access and mobilisation to difficult locations often far from the coast.

Megacon is a major designer, manufacturer and international supplier of high-tech electronic products for industrial, mobile, marine, offshore, subsea or seabed applications. They offer the best competitive technical solutions to cater to a wide range of renewable energy requirements.

Mencast Marine provides a comprehensive set of services and solutions inclusive of sterngear manufacturing. Within Mencast Marine, an extensive track record established with possess on world-class capability of providing quality propeller repair and modification services in offshore oil and gas and marine industry which inclusive of proficiency in CPP blades repairing, bronze casting for corroded and broken parts of cargo pumps, and casings.

Mercator Limited is Mumbai-based International organisation. As a group, Mercator has diversified business interests in Coal, Oil & Gas, Commodity Transportation and Dredging.

MKK is principally engaged in the engineering and construction of wide range industrial and chemical plants and environmental control facilities and also in the manufacture of machinery and equipment for industrial or chemical processes.

Mitsubishi Shipbuilding Co., Ltd. covers the maritime related businesses of Mitsubishi Heavy Industries (MHI) Group. They help propel forward the development of the maritime industry both in Japan and around the world through conventional shipbuilding and marine engineering, based on our deep technological expertise in shipbuilding, and by leveraging the wide range of technologies across MHI Group.

MMA Offshore specialise in providing high-specification vessels and a comprehensive suite of marine and subsea services to the offshore energy sector and wider maritime industries. Their combination of high-quality vessels, specialised subsea services, strategically located onshore facilities and in-house technical marine expertise enables them to partner with clients to deliver innovative, fit-for-purpose marine solutions.