Subsea cable installation


High speed communication networks are a standard commodity keeping the world connected. Global Marine specialise in offering a total subsea solution from concept with cable route planning to project engineering, then installation in both deep and shallow water, and for the life of the system providing comprehensive maintenance solutions.

Acknowledged as a market leader that is solid, reliable and proven Global Marine understands that each project is different and works together with customers and our joint venture partners to deliver a bespoke solution that meets business requirements and stands the test of time. 

Our commendable track record means that customers return and have confidence in our ability to handle any subsea cable operation, even in the most challenging of environments.  Our rich subsea cable history dates back to the 1850’s and this combined with the fact that we have performed 35% of maintenance operations on world fibre optic cables has placed us in the enviable position of one of the maintenance providers of choice.

Telecoms cable infographic

Complete Solution Provider

Subsea cable provider

Global Marine offers a comprehensive set of services for the life of a subsea cable from pre-project planning, skilled engineers and crew to install and robust maintenance solutions though to cable recovery and future system subsea solutions


Telecoms route permitting

One of many of the Cable Route Services offered to obtain and assist with any consents, licences, permits or other permissions required locally.

Landing Point

Offshore landing point

Whether it's a beach manhole or OGB (Ocean Ground Bed) Global Marine deliver a complete offshore solution enabling end-to-end system connectivity.

Pre-Laid Shore End

Pre-Laid Shore End

Using barges or vessels of opportunity equipped to install fibre optic cable from the landing point to deeper water this can be up to 25km or further in some circumstances until the water depth exceeds 13m.

Deep Burial

Subsea cable deep burial

Global Marine's Rocksaw and Injector are capable of deep burial in rock to a depth of 4 metres for Rocksaw and in softer seabed conditions for the Injector to a depth of 12 metres.'

Cable Storage

Telecoms cable storage

Global Marine has storage facilities available for customers at our depots.

Shallow Water Experts

Shallow water experts

Operating in a water zone under 13m, in challenging environments and often in close proximity to other cables.

Diver Support

Telecoms diver support

All diving activities globally are carried out under UK HSE Commercial Diving regulations as a minimum.


Subsea cable maintenance

Global Marine offers maintenance solutions either via cable maintenance zones (ACMA, NAZ or SEAIOCMA) or through private maintenance agreements.

Cable Protection

Subsea cable protection

Mitigating risk by engineered solutions for appropriate cable protection and burial.

Route Engineering

Cable route engineering

Our Route Engineering team provide a comprehensive range of services from desk top study, marine study and route engineering services to ensure the best and most cost effective subsea solution is found for your cable installation.


Subsea cable PLIB

Post Lay Inspection & Burial minimises risk ultimately protecting the cable.

Deep Water Operations

Deep water cable installation

Global Marine has installed over 300,000km subsea cable, 23% of the world's total.

Vessel Capability

Subsea cable installation vessels

Installation in water depths ranging from the very shallow ( <13m) to the very deep (>6000m) through our purpose built cable ships or barges converted to meet project requirements.


Cable installation heritage

Global Marine has a legacy of installing and maintaining subsea cable that dates back to the 1850's providing customers today with knowledge and a skill set second to none.

UJ Services

Subsea cable Universal Joint services

Global Marine offers a comprehensive range of UJ services including: piece parts, training, equipment and jointer hire.

Telecoms subsea installation