Subsea Survey Contractor

Specializes in geotechnical services and subsea drilling solutions for offshore projects.

Houston, United States

Deep Ocean

Ocean services specialist providing subsea surveys, engineering, project management, installation, maintenance, and recycling for oil and gas and offshore renew

Haugesund, Norway

Deep Ocean Search

Deep-water survey and salvage company operating worldwide 24/7, including wreck location, strategic equipment recovery, and lost submarine searches.

Le Havre, France

DOF Group

Delivers integrated marine and subsea services for fixed and floating offshore wind, including cable installation, transport, mooring, repair, and maintenance.

Bergen, Norway

EGS Survey

Carries out hydrographic, geophysical, and marine geospatial surveys for offshore energy and coastal projects.

Bordon, United Kingdom

Eidesvik Offshore

Operates offshore service vessels for energy clients, including subsea, construction, and renewable-energy support.

Bømlo, Norway

Fugro

Provides geo-data services, including marine site characterization, geophysical and geotechnical surveys, and inspection services for offshore energy and infras

Leidschendam, Netherlands

Gardline

Specialist offshore survey company providing geophysical, geotechnical, environmental, and UXO survey services for marine and energy projects.

Great Yarmouth, United Kingdom

Geo Marine Survey Systems

Offers geophysical survey equipment and data processing services.

Schiedam, Netherlands

Geo Oceans

Provides subsea inspection, survey, and marine science services for oil and gas and other offshore users.

Osborne Park, Australia

GEOxyz

Independent survey contractor specialising in hydrographic, geophysical and geotechnical surveys, site investigations and offshore renewable-energy support.

Sliedrecht, Netherlands

Horizon Geosciences LLC

Provides geophysical survey services including magnetometer and gradiometer acquisition, processing, and UXO analysis.

Abu Dhabi, United Arab Emirates

N-Sea

Subsea services provider with a dedicated survey arm delivering hydrographic, geophysical and geotechnical survey work, plus UXO and inspection support.

Rotterdam, Netherlands

Ocean Infinity

Runs autonomous marine operations and subsea survey services, including uncrewed vessels and data collection for offshore energy and seabed mapping.

Southampton, United Kingdom

Oceaneering

Manages client-owned subsea tooling and provides refurbishment, upgrades, and maintenance support for offshore systems.

Houston, United States

Phoenix International Holdings

Provides worldwide undersea search, salvage, recovery, and rescue operations, including deep-ocean missions and pinger-location support for accident recovery.

Carthage, United States

Reach Subsea

Subsea services company providing integrated survey and inspection support, including offshore survey operations for energy and marine clients.

Haugesund, Norway

Saildrone, Inc.

Builds and operates autonomous ocean vehicles that gather maritime intelligence, environmental data, and seabed-adjacent survey information.

Alameda, United States

Seabed Geosolutions

Provides seabed seismic data acquisition services, utilizing advanced navigation and positioning systems.

Leidschendam, Netherlands

Shearwater GeoServices

Delivers marine geophysical survey services and offshore data acquisition for the energy sector.

Bergen, Norway

Swathe Services

Provides hydrographic survey equipment and support services.

Hayle, United Kingdom

TGS

Delivers marine geoscience data and ocean-bottom node seismic acquisition services used in offshore energy exploration and development.

Asker, Norway

UTEC Survey

Provides survey, positioning, and data management services for offshore and onshore projects.

Aberdeen, United Kingdom

XOCEAN

Operates uncrewed surface vessels and delivers ocean data collection as a managed service for survey, environmental, and offshore projects.

Dublin, Ireland