Rotech Subsea provides subsea tooling for the oil & gas, renewable energy and decommissioning sectors. Our purpose-built, patented and patent-pending technology - designed and manufactured by Rotech Engineering and Rotech Fabrication - can be deployed for scopes of work in commissioning / decommissioning, inspection repair and maintenance.

Our state-of-the-art RS designs provide capabilities not available via traditional mass flow excavation technology.

We offer solutions in controlled flow trenching, excavation, burial / backfill, deburial and seabed debris clearance for:

• Cable Array and Export Trenching / Deburial
• Cable Joint Burial / IRM
• Pipeline Trenching / Deburial
• Backfilling for Cable / Pipeline Protection
• Jack-up Leg / Spud Can Clearance
• Harbour / Pontoon Seabed Clearance
• UXO De-burial / Access
• Freespan Correction / Seadbed Rectification
• Sandwave Clearance / Cable & Pipeline Route Clearance
• Umbilical & Flowline Trenching / Deburial
• Salvage Deburial / Access
• Access to Subsea Structures / IRM / Decommissioning
• Drill Cuttings Removal
• Cable Recovery
• Umbilical Recovery
• Pipeline Recovery
• Rock Removal / Relocation
• Rock Dump Dispersal

Seaocean Diving & Marine Services Sdn. Bhd was established in April 2016. Currently we have operations bases in Johor Baru & Miri Malaysia

Specialising in Marine applications, Integrated Projects including Platform / subsea decommissioning applications, vessel support and equipment rental,  along with rig/asset inspection and repair services provided by our parent company Advantage Marine Services.

At SORR, we are committed to ensuring clean water for all. Our cutting-edge solutions are 100% environmentally sustainable, AusSpill compliant Oil & Fuel Spill solutions are meticulously crafted to eliminate landfill entirely. 

Tested to meet the stringent standards of BS7959 and compliant with AS1940:2017 & AusSpill product quality guidelines, they effectively eliminate oil, hazardous hydrocarbons, and dissolved pollutants from water sources.  Our products enable pigging and cleaning of infrastructure to be done in a scalable and sustainable way.

Pollutants are not only removed but at the end of their lifecycle, our solutions transform these substances into valuable waste products such as Carbon Black, Residual Minerals, and Hydrogen Gas, contributing to a more sustainable and resource-efficient future for decommissioning, recovery and remediation.

At Specialised Drone Services, we leverage cutting-edge technology and collaborate closely with our clients to deliver valuable insights across a range of industries, including those with high-risk environments. Our approach is designed to save time, enhance personnel safety, and improve the efficiency of projects and processes.

Stress Engineering Services was founded in 1972 and is a 100% employee-owned engineering company providing services across the full oil and gas lifecycle, with practice areas in upstream, midstream and downstream operations. Stress Engineering Services specialises in structural and mechanical integrity, instrumentation and data, materials engineering, forensics and failure analysis, testing and advanced simulation. The company also serves the aerospace and defense, consumer products, medical and pharmaceutical, transportation and industrial sectors.

In the offshore energy sector, Stress Engineering Services focuses on drilling systems, wellhead integrity, riser fatigue, plug and abandonment engineering, and the asset production life cycle, including design, manufacture, testing, operability and life extension of floaters, risers, tendons and mooring systems. Stress Engineering Services also developed NeoSight, a physics-based digital twin platform that processes sensor data into structural intelligence to support structural integrity, life extension and decommissioning timing decisions.

Subsea7 is a global leader in the delivery of offshore projects and services for the energy industry.

Subsea7 makes offshore energy transition possible through the continuous evolution of lower-carbon oil and gas and by enabling the growth of renewables and emerging energy.

sustain:able is a hands-on sustainability consultancy helping organisations lead through the complex world of ESG. With deep roots in energy, oil & gas, mining, and decommissioning, we work alongside clients to embed sustainability into strategy, operations, and reporting - driving both impact and performance. 

We bring specialised expertise in decommissioning emissions—pinpointing carbon hotspots, cutting costs, and boosting operational efficiency.  Our practical, data-driven approach covers emissions calculation and forecasting, climate risk, and ESG frameworks, delivering solutions that create real-world results and measurable value. 

Tellus is an innovative environmental services company cleaning up hazardous, including NORM & Mercury waste across Australia by developing and operating geological repositories and reinvesting in its communities through the circular economy.