Decom Mission

Since 2011, Decom Engineering has pioneered subsea innovation, delivering unparalleled excellence globally. We provide tailored engineering solutions across the renewable energy, oil and gas, and infrastructure sectors.

At Decom Engineering, central to our offering is the patented C1 Chopsaw Range, renowned for its precision and speed. It delivers clean cuts up to 46″ OD with an extremely high reliability record across six continents. Our Chopsaw is exceptionally fast—delivering clean cuts up to three times quicker than comparable diamond wire saws—significantly reducing downtime by eliminating wire snapping risks. We also offer comprehensive Inspect, Repair, and Maintenance (IRM) and onshore cutting services.

Decom Engineering continuously challenges conventional thinking, developing technologies that redefine subsea operations.

Our group has over 1,200 marine vessels. Our fleet of semi-submersible DP2 vessels activities include marine installation and decommissioning as well as transportation. We can provide our clients with a decommissioning package including removal of topsides and jackets with a cost effective and innovative solution.

The key aim of the company is to reduce costs for decommissioning by increasing efficiency during cutting of conductors and casings, anchor chains, flexible risers, umbilicals and any other subsea products.

ComPower specialise in Nav. Aid for unmanned, closed down and decommissioned platforms. Our SCOL unit is based on battery and solar power technology with remote operating and monitoring capabilities. These units are used during dismantling of offshore installations to mark the position of elements that are without power, and they are specially designed to withstand the harsh winter conditions of the North Sea. We also specialise in UPS systems and for communication and navigation on board. Our systems are module-based, service friendly and highly reliable. We have supplied to more than 90% of the NCS.

Claxton, a Cutting and Decommissioning brand in Acteon’s Energy Services division is a global leading engineering and service provider for the decommissioning of subsea and platform marine assets. With an unrivalled knowledge and 30 years+ experience of delivering innovative class-leading offshore engineering solutions, Claxton understands that operators are under increasing pressure to reduce costs and optimise asset performance. Claxton applies experience, coupled with extensive in-house tailored engineering capabilities and a proven record of managing successful campaigns, making them the confident choice for upstream projects.

Claxton reduce the cost and complexity of removing marine infrastructure through expert engineering to leave a clean seabed and no future risk to the environment.

At Claxton, we offer a single point of contact to drive project efficiency. We manage and retain key information throughout a project’s life cycle and deliver a truly integrated solution for high-quality well and infrastructure removal. In-house engineering, CNC manufacturing and fabrication capabilities and experience enable us to respond quickly to customers’ needs and to develop bespoke solutions including the build of new equipment.

Claxton bring new, efficiency-enhancing technologies to market by combining customer engagement with operational experience, engineering expertise and industry-leading domain knowledge. The global technology brands we have created include SWAT™, WellRaizer® and SABRE™, which provide efficient and alternative approaches to well abandonment project

Brown and Mason have been established for over 50 years during which time we have been responsible for successfully completing numerous Industrial dismantling and decommissioning projects and asbestos removal contracts of all types throughout the UK, Europe and beyond. Our experienced, in-house, estimating and planning teams are always available to offer free, confidential budgetary advice on costing, programming and methodology.

Marine Decommissioning

Marine decommissioning and recycling of marine structures and vessels is a mammoth undertaking.
It not only requires extensive planning, experience, and expertise, it also requires specialist plant and an appropriate location to carry out the marine decommissioning process.

Brown and Mason not only meet all of these requirements, we surpass them. We have over 50 years of experience, with teams of qualified experts and a fleet of plant capable of dealing with all marine decommissioning projects.

Marine Decommissioning Service

Brown and Mason’s marine decommissioning services are becoming increasingly significant as numerous sea-based assets such as oil rigs and platforms approach the end of their service life.
We work with various ports which boast incredible facilities to accommodate safe marine decommissioning, all perfectly placed for decommissioning marine structures throughout the surrounding ocean, including the structure-heavy North Sea.

But don’t think that we are limited to operating just in the North Sea – we already work in many countries throughout the world. We take pride in our ability to resource contracts of any size and in any location on the globe, however complex the logistics.

We provide a bespoke service on each and every marine decommissioning project – the complications and size of marine based vessels means each one is truly unique. Brown and Mason are ready to safely and efficiently decommission, salvage and recycle your marine vessel, so get in touch with our team today to discuss your project.

Our Services Include;

• Marine Decommissioning & Dismantling
• Land based Industrial Decommissioning & Dismantling
• Controlled Explosive Engineering
• Nuclear Decommissioning and Dismantling
• Asset Recovery
• Asbestos Removal and management
• Free Programming & Methodology advice
• Free Budgetary advice

Boskalis Subsea Services’ decommissioning solutions cover the entire late life and decom lifecycle.

With our extensive fleet, specialised equipment and engineering expertise, we provide innovative, safety-focused and cost-effective solutions which limit the environmental footprint of decommissioning, whilst reducing the total cost of ownership.

As an EPRD (engineering, preparation, removal and disposal) contractor, our services cover offshore survey, preparation, engineering, cutting, removal and transport campaigns, as well as onshore dismantling, recycling and disposal.

Across our decommissioning activity, Boskalis Subsea Services draws upon a global fleet of offshore vessels which include heavy lift, diving support, heavy transport, (anchor handling) tugs and barges.