(Compagnie Maritime d’Expertises)


COMEX was born from a passion: the sea and its riches, and an ambitious project: pushing the boundaries of underwater work to extreme depths under perfect safety conditions, while empowering humans to ensure the perfection of their work.

Today, and after over 60 years of existence, it is still the same passion that drives everyone in this remarkable industrial and technological story. COMEX remains more than ever focused on the design, development, and operation of innovative and high-performance systems, whether they are intended for use on land, at sea, or in space. Since the company’s inception, the same values have always inspired the COMEX teams and formed the corporate culture. These values guide us in our missions:

PASSION that unites us and makes the complex possible,
EXCELLENCE that commits us to completing our missions,
INNOVATION which is our DNA, driving development,
INTEGRITY as our compass and foundation of our relationships,
SOCIAL RESPONSIBILITY that guides our involvement in the community and places humans at the center of our interactions and projects,
AGILITY for constant adaptation to the expectations of stakeholders.

They trust us


Hospital hyperbaric chamber

Projetable hyperbaric chamber

Special machine


Hyperbaric Test Center

Hypobaric Test Center

Test Pools


Design Office

fluid design office

mechanical design office

design office control commands

Comex News

Enduruns project

Enduruns projetUpdate to the March 2021 articleThe ENDURUNS project is an ambitious European initiative bringing together more than 15 partners. Its goal is to develop a long-endurance hybrid autonomous underwater vehicle, powered by hydrogen fuel cells. The project...

Hydrogen: Mastering pressures. Creating the future

Hydrogen: Mastering pressures. Creating the futureLooking towards the future for over sixty years Over the decades, Comex has consistently pushed the boundaries of innovation to provide advanced technological solutions. Whether it's on the technical side, creating...

Robotic testing in a pool

Robotic testing in a poolCOMEX offers a specialized service in robotic testing in a pool. This type of testing is essential for the development and advancement of underwater technologies. One of our clients, IVM Technologies, shares their experience in this interview...

Simulate extreme depressurization conditions with our depressurized chambers

In the aviation industry, the safety of passengers and crew is of utmost importance. In-flight depressurization scenarios can be particularly critical, requiring rigorous testing and validation to ensure the reliability of systems and equipment on board aircraft....

Decennial Maintenance of Hyperbaric Facilities (R120)

COMEX specializes in the design and implementation of maintenance plans for hyperbaric facilities in compliance with the European Pressure Equipment Directive (DESP). Customized based on the specific needs and conditions of each client, our goal is to provide...

Moon surface simulator

The hydrosphere is a vacuum chamber containing 3.5 tons of regolith simulant used to perform tests for missions on the lunar soil.


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36, bd de l’Océan – CS 80143
13275 Marseille – Cedex 9 –

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