Subsea systems, survey & marine robotics
A directory of the companies building and operating equipment below the waterline, alongside technical coverage of how it works.
272 suppliers · 28 countries · 34 capabilities
Browse by company type
All 272 suppliers →Equipment Manufacturer
Designs and builds subsea hardware — sensors, housings, connectors, lighting, handling systems.
Vehicle & Robotics Developer
Builds AUVs, ROVs, USVs, gliders and crewed submersibles.
Survey Contractor
Delivers hydrographic, geophysical and geotechnical survey as a service.
Subsea Services & Intervention
IMR, subsea construction support, and offshore intervention campaigns.
Diving Contractor
Commercial air and saturation diving operations. A distinct IMCA division, and a distinct safety and certification regime.
Vessel Operator
Owns or charters survey, support, construction and dive-support vessels.
Systems Integrator
Combines vehicles, sensors and software from multiple vendors into a working spread.
Software & Data Services
Acquisition, processing, positioning and data-management software; hydrographic data processing as a service.
Rental & Leasing
Short-term hire of vehicles, sensors and complete spreads — a large share of how subsea equipment actually reaches a job.
MRO & Refurbishment
Maintenance, repair, overhaul and refurbishment of fielded subsea equipment.
Engineering & Consultancy
Naval architecture, subsea engineering, geotechnical interpretation and technical advisory.
Testing, Calibration & Certification
Pressure testing, sensor calibration, tank facilities and third-party verification.
Training Provider
ROV pilot, commercial diving, hydrographic and offshore survival training.
Research Institute
Oceanographic institutes and university groups — significant operators of subsea equipment in their own right, not only buyers.
Distributor & Reseller
Represents and resells third-party subsea products, often regionally.
Latest
9 topics- ROV
Electric Work-Class ROVs Are Replacing Hydraulics
Saab Seaeye eWROV, Forum Quantum EV and Oceaneering Momentum. Why all-electric work-class vehicles took twenty years to arrive and what they remove.
- ROV
Resident ROVs: Leaving the Vehicle Down There
Equinor has run permanently installed ROVs at Snorre B, Visund and Njord since 2018. What residency changes, and why it removes the vessel rather than the pilot.
- ROV
How Big Is the ROV Market, Really?
Published estimates of the ROV market range from $0.14bn to $8.58bn. The spread is a definition problem, and the growth rates agree far better than the levels do.
- ROV
What Is an ROV?
Observation-class through work-class ROVs, what the tether actually carries, and why over 5,000 of them are still the workhorse of subsea intervention.
- Deep Sea
What AI Is Actually Doing in Deep-Sea Exploration
Machine learning in deep-sea work is mostly image classification and onboard processing. What that changes, and what the acoustic bandwidth limit means for autonomy.
- Pollution
Where Ocean Plastic Actually Comes From
Rivers dominate globally, but 75 to 86 percent of hard plastic in the Great Pacific Garbage Patch came from fishing. Why both figures are true.