2. Install

Offshore construction

We act on construction risk and offshore complexity

With proven success in both fixed and floating assets, Acteon combines subsea engineering, in-house installation equipment and experienced teams to reduce project risk, optimise vessel time and ensure delivery confidence in any water depth.

Leveraging decades of offshore expertise, we deliver safe, efficient, and cost-effective marine infrastructure installations - no matter how complex the environment.

Our solutions

Positioning and construction support

By building a detailed understanding of the specific offshore environment, we optimise vessel time, logistics and offshore headcount and shorten installation time.

Integrated marine foundations

Reach first energy production on schedule with our efficient marine foundation installation custom solutions and tooling. Early engagement and close collaboration enable us to construct offshore foundations efficiently, with minimal downtime.

Mooring solutions

Permanent and temporary mooring systems designed for faster installation. Leverage our engineering expertise to optimise anchor selection and mooring system design.

Delivered by:

What makes for a successful offshore construction project?

Offshore energy construction projects face pressure to deliver on time, on budget and with lower environmental impact. Acteon helps meet these challenges with specialist tools, integrated planning and experienced field teams.

Challenges and benefits icon.

Installing subsea assets with precision

Digital workflows and positioning systems enable confident foundation, mooring and equipment installation - even in deepwater or variable conditions.

Challenges and benefits icon.

Reducing installation cost and vessel time

Proprietary hammers, intelligent connectors and light anchor systems reduce complexity, accelerate deployment and lower fuel consumption and deck handling requirements.

Challenges and benefits icon.

Supporting performance in harsh conditions

Our equipment and workflows are proven in deepwater and congested seabeds - supporting the delivery of robust, reliable offshore infrastructure.

Supporting the full project lifecycle

Our offshore construction services support the safe, efficient delivery of energy infrastructure in all marine environments. See how we can support all stages of the offshore energy lifecycle. Our solutions are designed to help solve the most complex problems.

2H, Acteon’s Engineering consultancy, delivers structural and mechanical design for our offshore construction projects. For independent advice, contact the 2H team directly.

1. Plan

Site investigation and characterisation

2. Install

Offshore construction

3. Maintain

Asset integrity management

4. Extend and decom

Life extension and decommissioning

Proven capability, trusted delivery

Acteon’s offshore construction expertise is backed by decades of delivery in wind, oil and gas and nearshore infrastructure - with tools and experience proven in the most complex seabed conditions.

500+

Moorings including many of the largest oil and gas floating producing units

2120m

World record deepwater foundation installations (water depth)

2500+

Foundations installed for fixed wind projects

I would like to take this opportunity to wholeheartedly thank Acteon for the professionalism, quality workmanship, and high standards demonstrated by the personnel, equipment and management. Their commitment to impeccable business ethics and the safety of everyone involved in our rig move projects has been truly commendable.

Superintendent Manson Construction

Our solutions in action

Explore how Acteon supports safe, efficient offshore construction through precision tooling, foundation design, mooring installation and real-time digital control.

News

Acteon inks three-year Petrobras contract for enhanced mooring asset integrity

Intermoor, Acteon’s Moorings and Anchors business line, has been awarded a three-year contract by Petrobras, following a Memorandum of Understanding (MoU) signed at the Offshore Technology Conference (OTC) in Houston in May 2025. 

Blogs

Offshore construction for FPSOs – delivering margin, speed and certainty

Offshore construction is the work that brings an offshore energy project to life. It’s a chain of interdependent phases: positioning, construction support, and foundation or mooring system installation. Each stage brings its own challenges. While design work may be finalised early, offshore success depends on how well those plans adapt to real-world conditions.

News

FEPLA advances: First geotechnical tests validate offshore solution

Intermoor, Acteon’s Moorings and Anchors business line, has completed the first phase of model testing for its Flexibly Embedded Plate Anchor (FEPLA) at the University of Dundee Geotechnical Engineering Facility.

Talk to our offshore construction specialists

Acteon delivers offshore construction solutions that simplify complexity, reduce offshore exposure and support fast, efficient installation. Contact our team to explore integrated or standalone support.