Cable-laying vessel working offshore at blue hour

Subsea cable engineering · Est. 2009

Building the Future Beneath the Ocean

Global leaders in subsea cable engineering, offshore telecommunications infrastructure, marine surveys, installation, maintenance and repair.

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Projects completed: 0+
Countries served: 0+
Emergency response: 0/7
Network reliability: 0.00%

Who we are

Engineering the arteries of the global internet

Greendreams Subsea Cable Service designs, installs, protects and repairs the fibre optic systems that carry the world's data. From desktop route study to provisional acceptance, we hold single-point accountability for every marine and terrestrial workstream.

Owned and chartered lay & repair fleet
In-house survey and route engineering
Repeatered and unrepeatered wet plant
ISO-certified HSE and quality systems

Read our story

Fibre optic submarine cable in deep teal water

3.0 m

Typical depth of lowering achieved by our ploughs

Capabilities

Ten disciplines, one delivery organisation

Subsea Cable Installation

Deep-water and shallow-water lay, burial and shore-end operations.

Plough and jet-trenching to 3m depth of lowering, shore-end pull-ins, and full as-laid documentation delivered on completion.

Cable Route Survey

Desktop study, geophysical and geotechnical survey, route engineering.

Multibeam bathymetry, sub-bottom profiling, magnetometer and CPT campaigns feeding a fully permitted route position list.

Marine Engineering

Offshore structures, crossings and protection engineering.

Rock placement, mattressing, crossing agreements and landfall civils engineered to survive currents, trawling and anchor risk.

Fiber Optic Systems

Wet plant design, splicing, terminal equipment and commissioning.

Repeatered and unrepeatered system design, coherent line terminal integration, OTDR and COTDR acceptance testing.

Offshore Telecommunications

Platform, wind farm and island connectivity infrastructure.

Resilient backhaul for energy assets and remote communities, including diverse routing and hybrid microwave/satellite failover.

Cable Maintenance

Zone maintenance agreements with guaranteed vessel availability.

Standby vessels, depot spares, jointing kits and annual dry-run exercises keep mean time to repair inside contract windows.

All ten services

Global footprint

Routes we have engineered and maintain

Completed routes Ongoing programmesHover a landing region for detail

A cable fault does not wait for office hours

Our marine operations desk is staffed 24/7, with vessels mobilised inside 24 hours of fault confirmation.

Call +1 213 838 5466 Request a quote