Helix overview

We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention and robotics operations.

Our services are centered on a three-legged business model:

  • Production maximization — our assets and methodologies are specifically designed to efficiently enhance and extend the lives of existing oil and gas reserves; we also offer an alternative to take over end-of-life reserves in preparation for their abandonment;
  • Decommissioning — we have historical success as a full-field abandonment contractor and believe that regulatory push for plug and abandonment and transition to renewable energy will facilitate the continued growth of abandonment backlog; and
  • Renewable energy support — we are an established global leader in jet trenching and continue to seek to provide specialty support services to offshore wind farm developments, including boulder removal and unexploded ordnance clearance.

We provide services primarily in deepwater in the Gulf of Mexico, Brazil, North Sea, Asia Pacific and West Africa regions. We have expanded our service capabilities to shallow waters in the Gulf of Mexico with the Alliance acquisition on July 1, 2022.

Our services are segregated into four business segments: Well Intervention, Robotics, Production Facilities and Shallow Water Abandonment.

Our Well Intervention segment provides services enabling our customers to safely access offshore wells for the purpose of performing production enhancement or decommissioning operations, thereby avoiding drilling new wells by extending the useful lives of existing wells and preserving the environment by preventing uncontrolled releases of oil and gas. Our well intervention vessels include the Q4000, the Q5000, the Q7000, the Seawell, the Well Enhancer, and two chartered monohull vessels, the Siem Helix 1 and the Siem Helix 2. Our well intervention equipment includes intervention systems such as intervention riser systems (“IRSs”), subsea intervention lubricators (“SILs”) and the Riserless Open-water Abandonment Module, some of which we provide on a stand-alone basis.

Our Robotics segment provides offshore construction, trenching, seabed clearance, and inspection, repair and maintenance (“IRM”) services to both the oil and gas and the renewable energy markets globally, thereby assisting the delivery of affordable and reliable energy and supporting the responsible transition away from a carbon-based economy. 

Our Production Facilities segment includes the Helix Producer I (the “HP I”), a ship-shaped dynamically positioned floating production vessel, the Helix Fast Response System (the “HFRS”), which combines the HP I, the Q4000 and the Q5000 with certain well control equipment that can be deployed to respond to a well control incident, and our ownership of Droshky oil and gas properties. 

Our Shallow Water Abandonment segment provides services in support of the upstream and midstream industries in the Gulf of Mexico shelf, including offshore oil field decommissioning and reclamation, project management, engineered solutions, intervention, maintenance, repair, heavy lift and commercial diving services. Our Shallow Water Abandonment segment includes a diversified fleet of marine assets including liftboats, offshore supply vessels (“OSVs”), dive support vessels (“DSVs”), a heavy lift derrick barge, a crew boat, P&A systems, coiled tubing systems and other miscellaneous assets.


Well intervention vessels

Seven dedicated well intervention vessels


Robotics Support Vessels

Four robotics support vessels on term charters.


Remotely Operated Vehicles (ROVs)

40 work-class ROVs.


Intervention systems

Six intervention riser systems, three subsea intervention lubricators, and one riserless open water abandonment module.


Robotics Assets

Four trenching systems, one ROVDrill system and one boulder grab.


Helix Alliance Systems

14 marketable P&A systems and six coiled tubing systems.


Regional offices

Houston, Texas, USA (HQ) 
Houma, Louisiana, USA
Aberdeen, UK
Rio de Janeiro, Brazil


Helix Alliance Vessels

Ten liftboats, six OSVs, three diving vessels, one heavy lift barge and one crew boat.

Where to next?

Vision and values

We pursue our business with integrity and respect for others and the communities in which we operate.

Our history

See how we’ve evolved over five decades from a small group of abalone divers.

Our locations

We’re always ready to support you. Whenever and wherever you need it.