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Sea1 Offshore

Sea1 Offshore   

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Services

Well intervention

Well intervention

Sea1 Offshore provides well intervention services, utilizing a modern fleet and experienced workforce to support offshore oil and gas operations. This includes ...

Mooring replacement

Mooring replacement

The company offers mooring replacement services, including the inspection and changeouts of mooring lines, ensuring the secure positioning of offshore installat...

Towing and anchor handling

Towing and anchor handling

Sea1 Offshore conducts towing and anchor handling operations, supporting the movement and secure anchoring of offshore structures and vessels, including pre-lay...

Bundletows of pipe sections

Bundletows of pipe sections

The company manages bundletows of pipe sections, transporting and installing bundled pipelines for offshore projects.

Oil spill recovery

Oil spill recovery

Sea1 Offshore provides oil spill recovery services, deploying specialized vessels and equipment to contain and recover oil spills in offshore environments.

Ice management

Ice management

The company offers ice management services, ensuring safe operations in icy offshore regions by managing and mitigating ice-related risks.

CAN-installation

CAN-installation

Sea1 Offshore performs CAN-installation services, supporting the installation of subsea structures and equipment for offshore oil and gas projects.

Deep water inspection and construction work

Deep water inspection and construction work

The company undertakes deep water inspection and construction work, utilizing advanced vessels and technology for subsea inspections and construction activities...

ROV and light construction duties

ROV and light construction duties

Sea1 Offshore provides ROV (Remotely Operated Vehicle) and light construction services, supporting subsea operations with remotely operated vehicles and perform...

Supply duty & services to offshore installations

Supply duty & services to offshore installations

The company offers supply duty and related services to offshore installations, ensuring the delivery of essential supplies, equipment, and support to offshore p...

Walk to work- gangways on offshore wind installations

Walk to work- gangways on offshore wind installations

Sea1 Offshore provides walk to work solutions using gangways on offshore wind installations, enabling safe and efficient personnel transfer between vessels and ...

Trenching and ploughing for power cable laying

Trenching and ploughing for power cable laying

Sea1 Offshore offers trenching and ploughing services for the installation of power cables in offshore wind farms. These operations are essential for laying and...

Field support on offshore wind installations

Field support on offshore wind installations

Sea1 Offshore provides comprehensive field support services for offshore wind installations. This includes a range of operational and logistical support activit...

Advanced Maritime Research Missions with Joides Resolution

Advanced Maritime Research Missions with Joides Resolution

Sea1 Offshore offers a dedicated and experienced workforce of 1100 employees, with in-depth understanding of offshore ship operations. With our advanced explora...

Anchor Handling Tug Supply (AHTS)

Anchor Handling Tug Supply (AHTS)

Operation and management of large Anchor Handling Tug Supply Vessels designed to meet the most challenging offshore environments.

Platform Supply Vessels (PSV)

Platform Supply Vessels (PSV)

Provision of Platform Supply Vessels for offshore support, ensuring safe and efficient transport of supplies to and from offshore installations.

Subsea

Subsea

Operation of Multipurpose Field & ROV Support Vessels and Offshore Subsea Construction Vessels for subsea operations and support.

Renewables

Renewables

Offshore vessel support and services for the renewables sector, including wind and other renewable energy projects.

Scientific Drilling Vessels

Scientific Drilling Vessels

Provision and operation of Scientific Drilling Vessels for research and exploration purposes in challenging offshore environments.

Well Intervention Vessels

Well Intervention Vessels

Operation of Well-Intervention Vessels designed for advanced well intervention and maintenance tasks in offshore oil and gas fields.

Oil Spill Recovery Vessels (OSRV)

Oil Spill Recovery Vessels (OSRV)

Deployment and management of Oil Spill Recovery Vessels for environmental protection and emergency response to oil spills at sea.

Fast Crew Vessels (FCV)

Fast Crew Vessels (FCV)

Provision of Fast Crew Vessels for rapid and safe transportation of crew to and from offshore installations.

About

Sea1 Offshore Inc. (formerly Siem Offshore Inc.) operates a fleet of 21 offshore support vessels, including Anchor Handling Tug Supply Vessels, Platform Supply Vessels, Multipurpose Field & ROV Support Vessels, Offshore Subsea Construction Vessels, and Well-Intervention Vessels. The company employs approximately 1,000 people and reported revenues of MUSD 340 in 2024. Sea1 Offshore is committed to environmental and social responsibility and operates worldwide.

Branches

Sea1 Offshore Australia

Sea1 Offshore of Brazil S.A.

Sea1 Offshore Canada Limited Partnership (Dartmouth, NS)

Sea1 Offshore Australia Office

Sea1 Offshore Brazil Office

Sea1 Offshore Canada Office

Certificates

ISO 9001:2015
ISO 14001:2015

Membership

MACN membership 1703602346macn-member.webp

Contacts

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