DEME is a pioneering contractor in the fields of offshore energy, environmental remediation, dredging and marine infrastructure. DEME also engages in concessions activities in offshore wind, marine infrastructure, green hydrogen, and deep-sea mineral harvesting. The company can build on more than 145 years of experience and is a front runner in innovation and new technologies.

Based in London, one of the world’s renowned shipbroking hubs, Denholm Coates is one of the oldest shipbroking companies. Dating back to 1905, when it was established to act as brokers for the Denholm fleet, it has been a trusted partner for over 100 years. Focusing on the dry cargo market, Denholm Coates works as brokers on behalf of both charterers and owners, covering the bulk carrier, multi-purpose and heavy lift sectors.

With strategically located facilities either within or close to major ports, Denholm UK Logistics provides highly efficient port centric 3PL solutions for the receiving, handling, storing, picking, packing and distributing of goods around the United Kingdom (UK).

Department for Energy Security and Net Zero (DESNZ) is focused on the energy portfolio from the former Department for Business, Energy and Industrial Strategy (BEIS), in the United Kingdom (UK) government.

DESMI has specialised in the development, manufacture, sale and service of pumps and pumping solutions for marine, industry, defence & fuel, and utility incl. environmental equipment for oil spill, seaweed and clean waterways operating globally, but acting locally. The DESMI pumps and systems are sold to more than 100 countries via a network of subsidiaries and distributors on six continents.

Dexter Offshore is Dubai's renowned marine company. Their international client base trusts the firm's ship management services because of their integrity, directness, and flexibility.

China Deyuan Marine Fitting Company Limited, established in the year 2009, is a leading and reliable marine and offshore equipment supplier. In the year 2013, Deyuan Marine establish its subsidiary company Deyuan Marine Co.,Ltd (The Old Name:Zhuhai City Deyuan Import and Export Company limited).

Deyuan Marine Co., Ltd. (a subsidiary of China Deyuan Marine Fitting Co., Ltd.) is a Zhuhai‑based company founded in 2009/2013, supplying over 2,150 types of marine & offshore equipment globally, including life‑saving gear, firefighting, deck machinery, propulsion parts, mooring & towing equipment.

DFDS provides ferry and transport services in the whole of Europe continent. They deliver high reliability through ferry & port terminal services and transport & logistics solutions.

Diamond S Shipping Inc. (DSSI) is one of the largest publicly listed owners and operators of crude and product tankers, which provides seaborne transportation of crude oil, refined petroleum and other products in international shipping markets. DSSI owns and operates a fleet of 66 vessels, composed of two segments: Crude Tankers, which includes 15 Suezmax vessels and one Aframax vessel, and Product Tankers, including 50 medium range (MR) vessels.

Diamond Shipping Ltd are one of the most customer-focused transport, warehousing and logistics companies in Ireland. They offer a global import and export freight service, with agents in the UK, Europe, USA and Asia.

Diamond Shipping Services is endowed with a highly proactive approach, and has earned the reputation for assessing customer needs and acting upon them. They offer a wide range of shipping services, combined with over two and half decades of experience. With their cost-effective services and formidable experience, they go beyond moving cargo.

At Dinnteco, the mission is to change the approach to lightning protection systems by offering unique, innovative, and environmentally responsible technology. With more than 21 years of experience in lightning protection, the patented technology revolutionises lightning protection systems while offering a completely ecological product that respects the environment.

Diva Engineering Works is a Gujarat-based firm, established in 1979, specializing in manufacturing and servicing industrial and marine-compatible heat exchangers—including plate, welded/brazed units, shell-and-tube condensers, and cooling tower systems. They hold ISO 9001 certification and serve markets across India and abroad, offering spares, gaskets (NBR/EPDM/Viton), and maintenance services.

Diving Status is a global major company in one-stop-shop maritime solutions. Spanning industries from commercial shipping and superyachts to offshore oil and gas, marine constructions, and beyond, they’re a trusted partner for all things maritime.

Djurgårdens Färjetrafik operates the Djurgårdsfärjan ferry, line 82, on behalf of SL. The Djurgårdsfärjan ferry operates in Stockholm's port area between Slussen, Skeppsholmen and Allmänna Gränd on Djurgården. Djurgårdens Färjetrafik AB is 50% owned by Strömmagruppen and 50% by Serco Holding Ltd.

DNH A/S is a Norwegian loudspeaker manufacturer founded in 1946, based in Kragerø, Norway. They specialize in professional and industrial loudspeaker solutions for demanding environments.

Doen Waterjets are renowned designers and manufacturers of waterjet propulsion systems, focused on offering best-of-class waterjet products that excel in the harsh operating conditions of the commercial and military marine markets. Nearly 50 years of ongoing R&D and a solid track record of developing innovative waterjet propulsion solutions puts it in a unique position to partner with designers, boat builders and operators.

DOF Group operates a global fleet of modern offshore‑subsea support vessels — including construction support vessels (CSV), anchor‑handling tug supply vessels (AHTS), platform supply vessels (PSV), and remotely operated‑/autonomous‑underwater vehicles (ROV/AUV) — to deliver marine, subsea and offshore‑energy services worldwide.

Döhle (IOM) Limited Group of Companies offers ship management services, as part of the family-owned and operated Döhle Group. They have offices in Germany, Isle of Man, Philippines, Poland, Romania, Malta, Guernsey and the United Kingdom. Their services, which can be provided individually or collectively, include Crew Management, Technical Management, Commercial Management and Corporate Management.

Dolphin provides both solutions as per your requirement. For seawater application, corrosion-resistant materials must be used. They also provide Heat exchangers for seawater applications too. They also do the HVAC related jobs on board.

Dominion Energy's vision is to become the most sustainable energy company in the country. About 7 million customers in 13 states energise their homes and businesses with electricity or natural gas from Dominion Energy, headquartered in Richmond, Virginia, USA. We are committed to sustainable, reliable, affordable and safe energy and to achieving net zero carbon dioxide and methane emissions from power generation and gas infrastructure operations

Dong Fang Offshore is a ship owner based out of Taiwan that operates a diverse fleet of 18 vessels. The fleet consists of anchor handling tugs, service operation vessels, cable laying vessels, crew transfer vessels, and construction vessels. DFO was established in 2019 to deliver high-quality marine construction, operations, and maintenance services for the offshore wind, energy, and telecoms industries.

Donjon Shipbuilding & Repair utilizes years of experience and knowledge to meet the needs of an ever-expanding industry to provide shipbuilding, dry-docking and related services. Headquartered in Erie, Pennsylvania, Donjon Shipbuilding & Repair offers affordable, quality service that meets the highest maritime industry standards, and its commitment to the customer is unmatched.

Donut Safety Systems has over 35 years' of expertise in the supply, development, and manufacture of personal escape equipment for applications within the marine, gas, petroleum, renewable and construction industries, both onshore and offshore, with tens of thousands of units sold and in service globally. Donut is the industry standard for personal descent devices and has many advantages over conventional fixed means of escape.

Founded by Denis Francis Doyle in 1886 in Cork, DSG has transformed from a small stevedoring operation to an organisation that wants to improve the opportunities, businesses and lives of those connected to it. Having established themselves on the quays in Cork, where they still operate to this day, DSG has remained true to that core by focusing on building their business in areas which they have the experience and skill to better serve customers.

DP World (Drydocks World) are a globally renowned provider of worldwide smart end-to-end supply chain logistics, enabling the flow of trade across the globe. Their comprehensive range of products and services covers every link of the integrated supply chain – from maritime and inland terminals to marine services and industrial parks as well as technology-driven customer solutions.

The DP&L Group can be traced back to the Dundee Perth & London Shipping Company which was established in 1826. While the Group is no longer involved in shipping it has retained its routes firmly established in Dundee, operating from its new state of the art headquarters in the Dunsinane Industrial Estate. The Group has diversified into a wide variety activities which interestingly can all be traced back to its shipping heritage.

DSD Shipping Singapore is affiliated with DSD Shipping AS. Det Stavangerske Dampskibsselskab (DSD) AS, located in Stavanger, on the west coast of Norway, was established in 1855 and is thus proud of being one of Norway's oldest shipping companies. DSD Shipping AS, a subsidiary of DSD AS, was established in 1989 to manage the parent company's vessels in International trade.

Founded in 2014, dship Carriers has grown to become a major player in the global shipping industry, with a young fleet of over 20 vessels and offices located in key shipping hubs around the world. From breakbulk and heavy lift to dry bulk and project cargo, dship Carriers has the expertise to handle it all. They are committed to delivering innovative and future-focused solutions and partner with their clients for success.