Route Services

Creating commercially viable and secure installation routes for cables, umbilicals and pipelines

Our cable route services team deliver everything required to enable a project to begin as envisaged as well as ensuring the long-term safety and security of a subsea system, right from the very initial planning stages.

A cable, umbilical or pipeline route desk top study (DTS) or FEED study is a key part of this; properly executed, a DTS should detail all the influences on cable route safety and provide sound engineering solutions for the environment encountered. It should also specify the amounts of submarine cable and the plant required to build the system.

The DTS provides a technical reference for the entire project and throughout the life of the system, detailing factors likely to influence all subsequent activities, from survey through to installation, and then throughout the system’s operations and maintenance lifecycle.

As outlined in the results of a DTS, our permitting department will subsequently assist in obtaining any consents, licences, permits or other permissions, specific to national and local legislations which are required to begin work in any given region. These are often numerous and vary in complexity, and something, which if not completed correctly and in a timely manner, can have costly delays and negative commercial impacts to projects.


The cable, umbilical or pipeline route survey involves a dedicated marine hydrographic survey using the route created during the DTS, confirming the route’s suitability and gathering the detailed information which enables the final route engineering to be undertaken.

Using the most advanced geophysical survey tools and equipment including echosounders, side scan sonar, sub bottom profilers and magnetometers, we are able to determine the nature and topology of the seabed. By undertaking a geotechnical survey campaign we then take samples to determine the geotechnical properties of the seabed. This enables us to optimise the cable route and recommend burial and cable protection measures to be taken. Our knowledge of how to plan and engineer for the practical aspects of a shore end or a connection to an offshore platform results in a better system solution for our customers.

Global Marine Group’s GeoCable™ software product is an industry-leading Geographical Information System (GIS) developed internally specifically to meet the needs of the subsea cable industry, with access to over 2 million kilometres of as-laid cable data. GeoCable™ is available to buy as an off-the-shelf package or as a bespoke solution designed to meet individual customer needs.


  • Desk top & FEED studies
  • Route survey
  • Cable protection assessments
  • Cable fault analysis
  • Permitting
  • Geocable GIS with unparalleled cable route and fault records
  • Decades of installation and maintenance experience with the latest software to provide a highly professional route engineering service
  • Charting services
  • Cable records services that takes on the burden of data management on your behalf

Our Latest News:

Posted: 25/11/2020


The Atlantic Cable Maintenance Agreement (ACMA) members and their suppliers Global...

Posted: 13/10/2020


The United Nation’s World Maritime Day held at the end of...

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Posted: 21/09/2020

Global Marine Group Launches OceanIQ Consultancy Business – utilising rich subsea data

Global Marine Group (GMG) a leading provider of subsea cable installation...

Posted: 08/09/2020

Global Marine Awarded Desk Top Study for Singapore India Gateway Cable System

Global Marine, a leading provider of subsea fibre optic cable installation...

Posted: 18/08/2020

SEA-KIT USV successfully completes 22 days of offshore operations in the Atlantic Ocean

We’re pleased to share this exciting press release from SEA-KIT celebrating...

Posted: 14/07/2020

Group Annual Awards 2020

We recently celebrated our annual awards to recognise some of the...

Posted: 18/06/2020

Global Marine Cadet Awarded Engineering Cadet of the Year

Today marks what should have been the graduation ceremony for students...

Posted: 10/06/2020

Keeping our manufacturing operations moving throughout the pandemic

As part of the wider Global Marine business, our UJ team...

Posted: 02/06/2020

Working together with our supply chain to maintain continuity for our customers

During subsea fibre optic cable repairs, universal joints (UJ) are used...

Posted: 20/05/2020

Adapting to ensure a continuation of service during COVID-19

As the COVID-19 pandemic continues to affect businesses and individuals globally, like everyone,...

Posted: 24/03/2020

Adapting to ensure a continuation of service: Our response to COVID-19

In light of recent developments and UK Government guidelines, we wanted...

Posted: 02/03/2020

J.F. Lehman & Company acquires Global Marine Group

Global Marine Group (“GMG” or the “Company”), a leading provider of...

Posted: 25/06/2019

Global Marine Group to Safeguard Ørsted’s UK Power Cables Under the Atlantic Cable Maintenance Agreement

Global Marine Group (GMG), supported by its business units Global Marine,...

Posted: 08/03/2019

Meet some of our inspirational ladies on International Women’s Day

In 2019, the focus of International Women’s Day is about balance....

Posted: 28/02/2019

Osbit to deliver next generation Subsea Plough to Global Marine Group

Osbit Limited, the offshore technology and engineering company, has secured a...

Posted: 29/01/2019

Rovco and Global Marine Group Enter Invested Partnership

Subsea technology company, Rovco has formed an invested partnership with Global...

Posted: 22/08/2018

Global Marine completes two offshore oil field communications contracts for Tampnet

Global Marine, a market leader in subsea fibre optic cable installation...

Posted: 01/08/2018

Global Marine Group handed RoSPA Order of Distinction (19 consecutive Golds) Award for health and safety practices

Global Marine Group has been issued a prestigious award in recognition...

Posted: 24/07/2018

Nurturing the next generation of engineers

For the last couple of weeks, Megan, an A level student...

Posted: 05/07/2018

Global Marine Group to Ride 350km for corporate charity, the Jubilee Sailing Trust

Next week, a team of amateur and enthusiastic riders from Global...

Posted: 04/07/2018

Celebrating the successes of our people

At the end of June we held our Annual Awards Evening...

Posted: 03/05/2018

CEO Today Magazine Announce Ian Douglas as a European Award Winner 2018

Ian Douglas Wins CEO Today Magazine European Awards CWind, part of...

Posted: 12/04/2018

Contract Awarded for Sub Sea Cable Replacement in Orkney Isles

Global Offshore is pleased to share Scottish & Southern Electricity Networks’ latest press...

Posted: 14/02/2018

Global Marine Group presented prestigious Shipowner of the Year Award by Offshore Support Journal

The Global Marine Group (GMG), a market leader in offshore engineering...

Posted: 20/12/2017

Global Marine Group announces new business unit ‘Global Offshore’ to serve the oil & gas sector

The Global Marine Group (GMG), a market leader in offshore engineering...

Posted: 01/12/2017

Global Marine Group completes acquisition of Fugro’s trenching and cable lay business

Acquisition Further Positions Global Marine Group for Significant Offshore Power Market...

Posted: 07/11/2017

Global Marine Group launches new Safety Management System

Global Marine Group (GMG) has launched a new Safety, Security and...

Posted: 12/10/2017

Global Marine Group to acquire Fugro’s trenching and cable laying business

Acquisition further positions company for significant offshore power market opportunities Chelmsford,...

Posted: 05/09/2017

Global Marine Group Awarded Order of Distinction from Royal Society for the Prevention of Accidents

Chelmsford, Tuesday 5 September 2017. The Global Marine Group (GMG), a market...

Posted: 31/08/2017

Global Marine Group Chooses Port of Blyth to Extend UK Footprint

Chelmsford, Thursday 31 August 2017. The Global Marine Group (GMG), a market...