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DEEP OCEAN SEARCH

subsea experience

We are providing worldwide solutions for shallow, deep and ultra-deep water activities.

The DOS team has been operating worldwide 24/7 since 2010, providing advanced subsea services from shallow waters to full ocean depths.

Our experienced team carries out a wide range of survey and subsea operations, from nearshore industrial projects to remote under-ice expeditions and deep trench explorations.

Specially adapted survey vessels and robotic systems were brought together with a highly experienced team. DOS’s unique capabilities are available to organizations seeking to operate without depth limitations.

Sectors

From groundbreaking scientific research to high-stakes recovery missions, Deep Ocean Search partners with leading industries to uncover the ocean’s secrets and achieve remarkable results. Our expertise empowers diverse sectors to push boundaries and redefine possibilities.

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Scientific research & Maritime Archeology

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Scientific research drives innovation, depends on our understanding of the world, and provides solutions to complex global challenges.

Biological, geological, hydrographic, archaeoligical studies… Installation of sensors, imaging, sampling, interventions in open waters or under ice in polar environments.

Pollution Control

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Protecting Our Oceans with Advanced Detection and Response.

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Defense and Security

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Precision, Innovation, and Resilience for Mission-Critical Underwater Operations

Location, inspection and recovery of strategic equipment, location of wrecks and military submarines lost at sea. Expertise, consultancy and support in mastering the deep sea.

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Salvage Operations

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Recover, Restore, Reclaim: Precision in Salvage Operations

Offshore Industry

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Powering Offshore Excellence: Expertise, Performance, Reliability

Marine renewable energy, submarine cables, oil and gas: positioning, spool metrology, installation and inspection of structures, installation of mattresses, rig moves…

Services

At Deep Ocean Search, we blend decades of experience with cutting-edge technology to tackle the most demanding deep-sea challenges. From strategic consulting and procurement decisions to drafting specifications, scopes of work, and procedures, we support our clients at every stage—delivering expertise from the surface to 11,000 meters deep.

Project Management

Comprehensive project management and client representation for survey, salvage, and positioning operations. We ensure seamless coordination, expert advice, and successful outcomes, whether onshore or at depths of up to 6,000 meters.

Subsea Fleet Management

We provide end-to-end subsea fleet management, ensuring optimal performance and availability of underwater assets. Our services cover preventive and corrective maintenance, subsea vehicle mobilization, inventory and spare parts management, and skilled personnel provision. We handle all aspects of fleet operations, from planning to execution, to maximize efficiency and reliability in challenging environments.

Salvage

Specialists in lightweight to heavy-duty salvage operations, including the recovery of structures, wrecks, planes, debris, sensors, and cargo. Our team operates effectively at depths ranging from the surface to 6,000 meters.

Survey

We provide cutting-edge survey services using autonomous underwater vehicles (AUV), side-scan sonar, multi-beam echo sounders, magnetometers, photogrammetry, and high-resolution imagery. Our expertise allows us to deliver precise data and insights at depths from 0 to 11,000 meters, supporting exploration, research, and operations worldwide.

High-Precision Positioning

We offer advanced positioning solutions using USBL, LBL, INS, and imagery-based metrology, ensuring exceptional accuracy for subsea operations at any depth. From rig moves and spool metrology to complex survey and construction projects, our expertise supports the most demanding offshore applications.

Need Our Team

Our highly skilled offshore personnel can help on your project , including surveyors, post-processors, survey engineers, team leaders, LBL engineers, and client representatives, to support and enhance specialized offshore operations with expertise and efficiency.

Mariner XL: Redefining Ultra-Deep Exploration

Deep Ocean Search offers the Mariner XL, a unique 6000-meter work-class ROV designed to tackle the most demanding underwater challenges.

This compact system enables rapid mobilization worldwide, minimizing setup time while maintaining exceptional performance. Its cutting-edge technology eliminates the need for extensive vessel modifications or time-consuming calibrations, ensuring seamless operations even in the most remote locations.

By providing access to this innovative equipment, Deep Ocean Search empowers clients across scientific, industrial, and military sectors to achieve their goals with greater efficiency and accuracy. The Mariner XL stands out as a solution that redefines ultra-deep-sea exploration, combining reliability, flexibility, and performance to meet the evolving needs of modern underwater missions.

Advanced electric propulsion

Dynamic positioning system

Transportable in just four 20’ containers

Projects highlights

Deep Ocean Search has been at the forefront of groundbreaking underwater projects across the globe. From discovering historic shipwrecks to salvaging critical assets and conducting complex subsea surveys, our expertise has enabled us to tackle some of the most challenging missions in marine exploration. With cutting-edge technology and a dedicated team, we bring unparalleled precision and efficiency to every project, whether at shallow depths or in the deepest parts of the ocean. Explore our portfolio to learn how we’ve delivered exceptional results for industries ranging from maritime research to offshore operations.

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Who we are

DOS has a permanent staff of multi-skilled surveyors, engineers and ROV pilots: a highly experienced team many of whom had worked with the same management for the past twenty years. DOS is operating 24 hours a day, 365 days of the year, offering advanced subsea services worldwide from shallow to ultra-deep areas.

DOS owns and operate a fleet of full ocean depth side scan sonars, multi-sensor towed platforms and work class ROVs, all rated to 6000 meters, along with a range of associated tools and modules.

Why choose us

Although other organisations operate ultra-deep, they do so very infrequently. DOS operates at these extreme depths on a daily basis and has been doing so for the past eight years.

Professionalism
Integrity
Innovation
Technology
Teamwork

Company experience

Project management - 35 years

Survey - 25 years

Salvage - 30 years

Positioning systems - 15 years

Ultra-deep operations - 10 years

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