Corporate profile

Expertise, reliability and Maxi Dry-Docks.

CNdM was founded in April 2010 by San Giorgio del Porto to operate dry-docks No. 8 and 9 of GPMM - Grand Port Maritime de Marseille (Marseille Port Authority) and from 2016 dry-dock No. 10, the biggest graving dock in the Mediterranean sea. Despite its relatively young age, the yard draws on a long and venerable legacy. Indeed, with over 175 years of services and craftsmanship, Marseille has positioned itself as an expert venue for ship repair, maintenance and conversion. Over the past century, the architecture of companies and facilities has changed considerably as the environment adjusts to the market. CNdM, employs 110 people including naval architects and mechanical engineers, skilled workers and specialized technicians.

The yard, alongside its sister company SGdP – San Giorgio del Porto – operates eight dry-docks and over 2 km of equipped repair quays, is capable of handling the largest vessels and is perfectly positioned to support the needs of the maritime, offshore and renewable energy sectors, providing specialized service and assistance 24/7/365.

The yard is located in the eastern section of the Port of Marseille, the largest in France, in the center of a large traffic zone extending from Genoa to Barcelona. The harbor benefits from direct access to the western Mediterranean Sea with no tideor lock restrictions, which means vessels up to 11.70m can enter CNdM docks with no time constraints.

The area enjoys a favorable climate for ship repair activities, with an average of less than 60 days of rain per year. Directly connected to highway, the yard is close to the downtown area (6 km from the Marseille Saint-Charles Central Railway Station), and to the airport of Marseille Provence (20 km). International connections are easy, saving owners and operators time and money.

Shipyard Services

A one-stop solution for repair, conversion and refitting operations in the shipping industry

Chantier Naval de Marseille, together with its sister company San Giorgio del Porto (SGdP) is a one-stop solution for repair, conversion and refitting operations in the shipping industry. CNdM offers its customers a full range of services a ship owner might need. Thanks to its expertise and organization, the shipyard invariably manages to promptly deliver any kind of project with the reliability, efficiency and response timeframe that its clients require.

Ship Repair and Maintenance

Ship repair and maintenance are the core business of the yards: from mid-range ships to the giants of the sea, SGdP and CNdM have the facilities, the necessary teams and the technical know-how to carry out any kind of repairs on all types of vessels.

Specialized Services

In addition to standard repair and maintenance services, the shipyards also offer specialvalue-added options. Major engine and equipment makers are their regular partners and their have selected qualified service providers. Both shipyards are able to execute all kinds of work on vessel propulsion, ranging from removal of tail shafts and rudders to complete overhaul of thrusters or azipod in our workshops.

Refitting Services

SGdP and CNdM, together with its partner T. Mariotti, are able to provide fully customized refitting services and conversion operations. Whether the owner wants to give a new look to his old vessel, renew or revamp existing areas, boost the ship’s capacity or improve its efficiency, their teams are able to design, manage and execute any project, regardless of its complexity.

Paint and Washing Technologies

The shipyards have strong expertise in applying all types of paint and the latest washing technologies are used, such as robotic vacuum blasting with ultra-high pressure water cleaning up to 3,000 bar for dustless hull or deck treatment. They also carry out such services as tank coating, engine overhauls, electrical works, as well as overhaul and repair of electric motors and alternators.

Reference List

Here following the main references of the shipyard

Quality & Certifications

Priority to health, safety, security and environment

Strongly committed to QHSSE, CNdM recognizes the importance of providing high quality standards and consider as their primary focus to ensure a safe and healthy work environment for the shipyard’s staff and partners. Thanks to their professionalism and organization, the shipyards invariably manage to promptly deliver any kind of project with the reliability, efficiency and response timeframe that their clients require.

The pursuit of high quality, health, safety, security and environment standards is regarded as an essential factor in client satisfaction and an unavoidable duty in respecting everybody. The belief is that the only way to achieve durable success is to strive for quality and sustainability. The shipyars operations relate to an environment where a broad range of inter-related activities is required, so over the years the experience has provided the tools to devise and implement a comprehensive QHSSE system.

The staff is qualified by GTT to manage LNG membrane type repairs, and both companies offer the full range of specialized activities, including membrane tank testing, cryogenic piping, valve and pump overhauls through carefully selected qualified service providers and extensive network of subcontractors.

As a minimum, the shipyards assure following priority actions that are necessary to optimize the activity control of the project, make it more efficient to reach higher standards, both in direct and indirect specific processes and in the general management: - the compliance with all applicable laws and regulations within the country of our operation with particular reference to rules and quality standards; - the conduction of all activities in a manner conducive to safe work practices and which avoids risk to our employees, our neighbors, and the environment;

- the arrangement and the optimization of the organization system composed by an appropriate team both for number and technical-professional capacities and able to achieve all targets established by the Scope of Work;

- the guarantee that all managers, coordinators, controllers and operational nucleus achieve his duty in respect of the prescriptions defined by the Management System of the project and, in general, by the management system QHSSE of contractor;

- the development of a motivated and high quality group inside an environment that will promote talent, creativity and reciprocal respect for the increase of professionalism, also by means of continuous training and ethic comparison that shall identify the value and will of individuals;

- the guarantee of the improvement of services and methods of management, also arranging inter-disciplinary meetings at the end of project in order to value that management results and single discipline.


CDdM has been certified by RINA



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The GIN Holding

Genova Industrie Navali: a Reliable Naval Pole in the Mediterranean able to Fulfil Every Need of Yachts and Ships up to 465 m.

The Genova Industrie Navali Holding Company is the product of an agreement between the San Giorgio del Porto Company (an important name in ship repairs), and T. Mariotti Company (specialising in the construction of luxury vessels) which, coincidentally, both share the same place and date of founding: Genoa (Italy), 1928.

Formed in 2008, this holding company, which is constituted solely of private companies, has the important role of coordinating and developing the activities of all the maritime companies directly affiliated with it.

Since its foundation, its shared strategy has been to allow each company to continue to act independently within its own market, without making changes to any of their individual characteristics.

With a total production value of over 250 million euros, 1,200 employees, 240,000 square meters of available facilities, 2,190 meters of quay, 5 dry-docks in Genoa and 3 dry-docks in Marseille, Genova Industrie Navali is one of the most important shipbuilding and repair groups in the entire Mediterranean Basin.

San Giorgio del Porto

Operating in the ship repairs industry since 1928, San Giorgio del Porto (SGDP), with its modern and well-equipped facilities, is a shipyard with a long tradition. SGDP is recognized worldwide as a point of reference for repairs, maintenance and conversions of all types of ships: passenger, ro-ro, cargo, tankers and off-shore. With over 80 years of experience in its sector, SGDP, with its staff of naval architects, mechanical engineers, skilled workers and flying squads of specialised technicians, is able to offer assistance to vessels worldwide, meeting all shipowners’ expectations.

Chantier Naval de Marseille

The Chantier Naval de Marseille (CNDM) is a shipyard with modern and well-equipped facilities, a highly qualified workforce and a vast network of specialists who are accustomed to working as a team. Located in a strategic position in Marseille in the south of France, near to the most important terminals in the Mediterranean, CNDM also benefits from its proximity to the industrial hinterland and is perfectly positioned to support the needs of the maritime, off-shore and renewable energy sectors. CNDM offers its customers a full range of services which, together with its professionalism, ensures that it is able to complete any type of project in a timely fashion, with the reliability, efficiency and responsiveness that shipowners require.

T. Mariotti

The T. Mariotti shipyard is specialised in the construction of luxury cruise ships. Its experience in this niche industry has, over the last ten years, allowed TM to break into the sectors of megayachts and off-shore working vessels. Its agile and flexible company structure allow it to manage the entire production cycle, from design to delivery, with a “big picture” approach that makes it possible to optimize every stage of production.

Mariotti Yachts

Mariotti Yachts is a brand of T.Mariotti that operates at the most exclusive level of the yacht industry. The synergies with T.Mariotti span from sharing the infrastructure and know-how employed on ultra luxury shipbuilding to leveraging on experience and expertise of the yard.

Ortec Industriale

Ortec Industrial designs and builds custom-made industrial electrical systems, combining the latest technology with current legal requirement. Ortec specialises in LV switchboards (main and emergency LV switchboards, power units, MCCs) for the maritime, industrial and civil sectors, as well as in the installation of electrical systems (turn key design, coordination, installation and commissioning of electrical systems).


Tecnavi is a specialised company with over 50 years’ experience in shipbuilding and repairs. The company operates two primary lines of business: Tecnavi Marine and Industrial HVAC – Refitting of marine and industrial air conditioning, refitting of machinery and technical room ventilation plants for ships and industrial use and refitting of cold storage and freezing rooms for ships and industrial use. Tecnavi Marine FF Systems – Design, development and manufacture of Fire Fighting Systems for any kind of Ship, in compliance with current regulations.

Gerolamo Scorza

Founded in 1898, the Gerolamo Scorza company operates in the sector of ship outfitting and furnishing, both for new construction and conversions, blending a long history of craftsmanship with innovative and technologically forward-looking ideas. Gerolamo Scorza provides a comprehensive “from concept to turn-key” service. The Company supports Owners, Architects and Shipyards in the implementation of projects for the outfitting and furnishing of cruise ships, luxury yachts, off-shore units, hotels, villas and resorts.


CI.MAR is a joint venture of the Cimolai Group (the company which, among other achievements, built the Olympic Stadium in Athens, the Cardiff Stadium and the Reggio Emilia Bridge) and T. Mariotti Shipyards (a leader in the construction of ultra luxury cruise ships and builder of megayachts). This “Made in Italy” alliance between the best of civil and industrial engineering entrepreneurship and the top-end of luxury-vessel shipyards, was established in 2007 and is intended to last. Facilities in San Giorgio di Nogaro, in Udine Province, not too far from Venice, offer a shipbuilding area of over 50,000 square meters, with complex lifting and manoeuvring systems capable of handling up to 300 tons.

Studio Engineering

The Studio Engineering company is entirely devoted to naval design and production engineering. It also handles hull design, stability calculations, weight estimation, structural design and FEM (Finite Element Method) analyses, functional design and coordination drawings, development of general arrangement plans and inclining tests. Studio Engineering takes care of every stage of the design of the entire ship system.