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Development of ideas into service excellence​

CSS Subsea is part of the Company Services Swiss SA Group and provides a comprehensive range of underwater services for the offshore and onshore market.

Targeting service segments and geographical markets in which our competitive edge helps to ensure attractive projects.

Shallow and deep-water interventions. Trenching, burial/de-burial, and protection services for offshore cables and pipelines.

Consolidating our position in those regions where CSS Subsea is historically operative and familiar: Mediterranean and Red Seas, Persian Gulf, Far-East.

Expanding into highly attractive regions with a focus on: West Africa, Latin America.

Maintaining a range of ancillary activities which sets us as a reliable full-service marine contractor at the leading edge of industry development.

our services

The right resources, at the right time, in the right place.


CSS Subsea operates as a worldwide underwater service contractor and as per IMCA standards for Surface Supplied Diving, Saturation Diving, ROV Operations, and Survey.


CSS Subsea offers a proven track record of more than 7,000 hrs of ROV Operations, 800 km Pipelines inspection, and over 20 Diving Projects successfully performed.


Throughout the years, CSS Subsea has gained valuable skills and experience in hydrographic and geophysical survey management.


Over the years, CSS Subsea personnel has earned extensive experience in pipelines and cables trenching, de-burial, and protection services.


We benefit from International Quality System Certifications.


We benefit from a healthy and diversified client portfolio​.

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Company Services Swiss SA Group technical and commercial responsiveness is happy to receive your enquiry and reply in the shortest lead time.