As connectivity and consistent energy supply right across the globe, both as individuals and as businesses, becomes ever more critical, we are striving to ensure a continuation of service for customers to maintain essential infrastructure to the global community.
Read more about our response to COVID-19 here.

Pre-project planning & cable installation

A total solution from route engineering, project engineering through to the installation phase

As part of the Global Marine Group, Global Offshore shares in an unprecedented track record of installation of subsea cable that dates back to 1850.

In the almost 170 years since, the Group has installed in excess of 300,000km of cable which equates to 21% of the world total, enough to circumnavigate the globe seven and a half times.

The Group has been in offshore wind since its conception and was responsible for installing the inter-array cables at the UK’s first offshore wind farm Blyth in 2000, at Europe’s first commercial wind farm Horns Rev in 2002 and at the UK’s first commercial wind farm Kentish Flats in 2004. Since then, the Group has worked at 50 wind farms across Europe.

Whether the need is for an interconnector or links to an offshore energy grid, Global Offshore has a culture that is committed to delivering safe, innovative solutions utilising the company’s outstanding engineering and project management capability, adapting to each project’s specific needs.

Cable installation at an offshore wind farm development is a critically important phase. There were reportedly as much as £213 million in insurance losses from 28 UK offshore wind claims between 2002 and 2015, 68% were directly due to cable faults occurring predominately during the construction phase.

The Global Symphony is a proven asset having worked on many offshore wind farm projects. The vessel offers a cable lay spread that includes a 2,000 tonne carousel, capable of carrying up to 1,300m3 of product and two 10 tonne tensioners, three 5 tonne tugger winches and a cable lifting quadrant with an MBR of 4 metres. With approximately 400m² of available space aft of the cable lay spread, the Global Symphony is able to carry up to ten 20-foot containers of cable protection system and retains the option to carry the Q1400 trenching system spread along with the cable lay spread.

Cable installation vessel, the C.S. Sovereign, part of the Global Marine Group fleet, has an exemplary track record working in wind farms and has installed almost 15% of all inter array cables globally.

Using expert crews and in-house engineering capabilities, the Global Marine Group collaboratively has installed 850 inter array cables and 890 cable pull-ins across almost 50 UK and European wind farms.


  • Planning, installation, burial, storage, testing, locating, recovering and maintaining subsea cables and other subsea assets
  • Power cables, fibre optic cables, pipelines and umbilicals
  • Unprecedented track record across the Group with 850 inter array cables installed
  • Group experience at 50 European wind farms
  • FEED/desk top studies, permitting, route engineering and project engineering
  • Planning & project management
  • Engineered cable protection & burial solutions suitable for the seabed environment
  • J and I-tube installations
  • Experience in very shallow (less than 10m) and very deep waters
  • A total cable solution, eradicating conflict caused by discrepancies in survey and route planning information
  • High specification, capable seagoing vessels with low weather downtime

Our Latest News:

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: 23/03/2020

Global Offshore to Provide Complete Cable Care Service to Three More UK OFTOs Under Five Year Framework

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 09/03/2020

Global Offshore Announces Contract to Install Cable at the Kincardine Floating Offshore Wind Farm

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 02/03/2020

J.F. Lehman & Company acquires Global Marine Group

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

Posted: 25/02/2020

Global Offshore Announces New Addition to its Cable Installation Fleet

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 13/01/2020

Ocean Renewable Energy Action Coalition Launches to Accelerate Global Offshore Wind Capacity

An international Ocean Renewable Energy Action Coalition has been formed to...

Posted: 18/12/2019

Renewable energy’s rising stars win seats on RenewableUK’s new Shadow Board

Global Offshore is pleased to share RenewableUK’s latest press release regarding the appointment...

Posted: 19/11/2019

PLP240 – Taking the next steps in cable laying

Global Offshore’s new Pre-lay Plough gives unrivalled single pass capability to...

Posted: 18/10/2019

RewewableUK Offshore Wind Cable Project Intelligence Report

Our Director of Power Cables, Andrew Lloyd, features as part of...

Posted: 30/09/2019

Global Offshore to support the installation of critically important infrastructure across the Pentland Firth

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 15/07/2019

Global Marine Group to Ride 500km for corporate charities the JST and the Ninos Pag-Asa Orphanage

Next week, a team of 26 amateur and enthusiastic riders from...

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: 24/06/2019

Global Marine Group launches unrivalled Subsea Pre-lay Plough the PLP240

Global Marine Group (GMG), has worked in close collaboration with offshore technology...

Posted: 21/03/2019

Global Marine Group’s Global Offshore to use new plough technology at Vattenfall’s Danish Kriegers Flak site

Chelmsford, Thursday 21 March 2019. Global Marine Group’s Global Offshore division,...

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: 08/11/2018

Global Offshore successfully installs export cable at Kincardine Floating Offshore Wind Farm

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 05/11/2018

Feature: RenewableUK array & export cables project intelligence report

Our Director of Power Cables, Andrew Lloyd, features as part of...

Posted: 15/10/2018

ASV Pioneer sails for her maiden project

A couple of weeks ago, the ASV Pioneer, part of our...

Posted: 24/09/2018

Global Offshore to provide fast-response cable repair to Vattenfall’s European portfolio

Global Offshore, a leading provider of cable installation, repair and trenching...

Posted: 20/09/2018

Global Offshore delivers back-to-back projects in the North Sea for major oil and gas customers

Global Offshore, a leading provider of trenching and power cable laying...

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: 31/07/2018


Global Marine Systems Limited (GMSL) trading as the Global Marine Group...

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...

Global Marine Group Shipowner of the year
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...

Global Marine Group: Global Offshore
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...

Global Marine Group acquires Furgo trenching
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...

GMG: launches new safety management system
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...

Posted: 03/08/2017

Utilising the Q1000, CS Recorder Completes Cable Reburial Project in Three Weeks

Chelmsford, Thursday 3 August 2017. Global Marine Group (GMG), a leading provider...