Subsea Vessel Operator

Oceaneering

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

Houston, United States

Ocius Technology

Builds persistent autonomous surface vessels powered by renewable energy for ocean monitoring, surveillance, and maritime data gathering.

Sydney, Australia

Saipem

Engineering and construction company that delivers integrated offshore and subsea project solutions, including marine installation and field development support

Milan, Italy

SEACOR Marine

Provides offshore vessel services and marine transportation to oil and gas operators in global energy markets.

Houston, United States

Seamec Limited

Provides offshore diving, subsea construction support, and marine services for oil, gas, and infrastructure projects.

Mumbai, India

Seaway 7

Specializes in offshore wind and subsea infrastructure installation, including cable-lay and burial operations.

Oslo, Norway

Seaworks

Supplies vessels, ROVs, and marine services to the New Zealand and South Pacific marine sector.

Auckland, New Zealand

Silvercrest Submarines

Operates and charters manned submersibles and supplies atmospheric diving suits for commercial, scientific, film, and salvage work.

Cirencester, United Kingdom

Provides high-end offshore vessel services for subsea construction, anchor handling, and renewable energy support.

Skudeneshavn, Norway

Tidewater

Owns and operates a large fleet of offshore support vessels, including vessels used in subsea and marine logistics work.

Houston, United States

Unique Group

Subsea engineering and rental company providing decommissioning tools and systems for cutting, removal, recovery, and offshore asset retirement.

Gibraltar, Gibraltar

Vallianz Holdings

Provides offshore marine support vessels and related services for the oil and gas industry.

Singapore, Singapore

Vroon Offshore Services

Operates a diverse fleet of vessels for offshore support and subsea services.

Breda, Netherlands

XOCEAN

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

Dublin, Ireland

Provides offshore support vessels and marine services for oil and gas clients in the Gulf region.

Abu Dhabi, United Arab Emirates