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.

Subsea Maintenance

Global Marine provides subsea cable maintenance services to almost 100 customers around the globe to keep their fibre optic cable systems operational the service is provided via maintenance agreements and private contracts. 

With unrivalled expertise, an exceptional knowledge base built over the last 165 years and a commitment to advancing technological solutions, Global Marine is the partner of choice for those wanting to maximise the return on their cable system investment.

Delivering Quality, Reliability and Responsiveness

It is imperative that system downtime is minimised and that a broken segment of cable is repaired in a timely manner. Global Marine provide a variety of maintenance options that reflect individual requirements for quality, reliability, responsiveness, dependability, and speed of repair.

Maintenance solutions are provided via consortiums or through private agreements and are tailored to the exacting need of the customer. Global Marine currently provides submarine telco cable maintenance services to around 121 maintenance authorities around the globe to keep their fibre optic cable systems operational, and thus is provided via zone maintenance agreements ACMA, NAZ and SEAIOCMA . We can offer a tailored maintenance model, based on budget and service requirements to independent customers.

For these agreements Global Marine provides fully equipped maintenance vessels, ROVs and highly qualified experts to manage and support all types of cable repairs and also provides additional offshore maintenance services as required, i.e. marine surveys, cable burial, shallow water repairs, cable and spare plane testing, cable jointing, offshore liaison and charting/system documentation management services.

What we cover
  • Repair, Maintenance and Improvement of Scheduled Cables
  • Complete requirements for submarine telecommunications cable maintenance from beach joint to beach joint (but excluding shallow water and the beach joint itself)
  • Depot Services, for supervised storage of systems submersible spare plant
  • Shallow water repairs (subject to quotation)
  • Universal Joint (UJ) jointing services
  • UJ & Cable Services, including training school
  • Other supplier services are available via the zone Contract Terms e.g. marine surveys, cable burial, cable and spare plane testing, cable jointing, offshore liaison and charting/system documentation management services

Experience and Performance

Track Record

In the last five years Global Marine achieved 99.4% of the contractual KPIs (e.g.  mobilization times, repair times, etc.) in its zone maintenance agreements. Our own data shows that Global Marine from 2010 to 2018, only had 0.6% of mechanical downtime during this period in the three zone maintenance agreements is involved.  Also Global Marine holds a global database of over 5500 historical cable faults, a percentage of which have occurred as a direct result of having poorly managed cable records.

Our Key Performance Indicators
  • Vessel mobilization duration and spares loading/offloading speed
  • Ship transit speed to repair site
  • Repair operation times as per water depth
  • Reporting

Our Experience

  • With our joint venture partners we support the maintenance of nearly 400,000km of globally installed telecom cable, of a total cable maintenance base of 1,300,000km.
  • Global Marine has performed 33% of maintenance operations on fibre optic cables globally.
  • Global Marine has played a pioneering role in the development of cable repair and maintenance solutions, and is a founding member of the Universal Joint Consortium (UJC).

Assets and Resources

RESOURCES and CAPABILITIES
  • Maintenance Vessels and Remotely Operated Vehicles (ROVs)
  • Wave Sentinel & ROV Atlas 2 – Stationed in Curacao (ACMA Agreement)
  • CS Sovereign & ROV Atlas 1 – Stationed in Portland, United Kingdom (ACMA Agreement)
  • Cable Innovator & ROV ST2205 – Stationed in Victoria, Canada (NAZ Agreement)
  • Cable Retriever & ROV XT 601 – Stationed in Subic, Philippines (SEAIOCMA Agreement)
Submersible Spare Plant Depots

UK – Portland Depot (ACMA Agreement)

Bermuda Depot (ACMA Agreement)

British Columbia, Canada – Victoria Depot (NAZ Agreement)

Spain – Tenerife Depot (ACMA Agreement)

Philippines – Subic Depot (SEAIOCMA Agreement)

The maintenance consortiums we operate in are:

SEAIOCMA – South East Asia and Indian Ocean Cable Maintenance Agreement

Global Marine has been repairing cables in Asia since the 1930s due to the exceptional service delivered to submarine cable owners in the region.

The first SEAIOCMA agreement was signed in 1986, superseding earlier agreements dating back to 1978, which included the 1st SEA-ME–WE cable (telegraph) linking Singapore to Medan to Colombo to Djibouti.

The SEAIOCMA agreement covers longitudes from Djibouti to Guam, and latitudes from Taiwan to Australia, covering an area of approximately one-third of the earth’s oceans.

The Cable Retriever is dedicated to SEAIOCMA and it is based at Subic Bay in the Philippines, where Global Marine also owns and operates the Subic Cable Depot.

The maintenance vessel and the ROV XT 601 is available to its members 365 days per year on a call-out basis under strict KPIs (Key Performance Indicators). Due to the vessel being berthed alongside Global Marine’s cable depot in Subic port – where the members’ submersible spare plant is stored under permanently monitored conditions as per manufacturer specifications – mobilizations can be undertaken very rapidly, within 24 hours from call-out.

Besides cable repair operations, Global Marine’s maintenance vessel and ROV can also undertake under the agreement operations for submarine cables maintenance and improvement, marine surveys and burial.

Cable Retriever at sea

NAZ – North American Zone

The NAZ agreement is a non-profit cooperative agreement, run by the members for the members. Its only purpose is submarine cable repairs. This agreement already exists for over 20 years in order to provide services to submarine cables with routes in the North East Pacific.

The Cable Innovator and the ROV ST205 are available to the NAZ members 365 days per year on a call-out basis under strict KPIs (Key Performance Indicators), which include mobilization within 24 hours from call-out.

Besides the maintenance vessel and ROV, Global Marine also provides submersible spare plant storage services through its depot located in Victoria, British Columbia, Canada.

This maintenance zone agreement covers submarine systems in latitudes from the Bering Sea and Alaska in the North to the Equator in the South and longitudes from the West Americas to approximately 167º West Longitude.

Besides cable repair operations, Global Marine’s maintenance vessel and ROV can also undertake under the agreement operations for submarine cables maintenance and improvement, marine surveys and burial.

The agreement also includes other services that include charting/documentation management, offshore liaison, fault location, UJ jointing services, shallow water repairs and land cable repairs. The latter two services are subject to quotation.

For more information please visit the NAZ website in http://www.northamericazoneagreement.com

Cable Innovator

ACMA – Atlantic Cable Maintenance Agreement

The ACMA agreement is a non-profit cooperative agreement, run by the members for the members. Its only purpose is submarine cable repairs

ACMA’s sole purpose is for the cable repair and maintenance of systems in the North and South Atlantic, English Channel, North Sea, Caribbean Sea and South East Pacific. The agreement has members drawn from the telecoms, power cable and the oil & gas industries.

The agreement also includes submersible spare plant storage services in depots located in Portland (UK), Brest (France), Bermuda and Tenerife (Spain).

Other services are also available, these include charting/documentation management, offshore liaison, fault location, UJ jointing services, shallow water repairs and land cable repairs. The latter two services are subject to quotation.

Besides cable repair operations, Global Marine’s maintenance vessels and ROV can also undertake under the agreement operations for submarine cables maintenance and improvement, marine surveys and burial.

The Wave Sentinel with the ROV Atlas 1 and the Sovereign with ROV Atlas 2 are dedicated to ACMA during 365 days per year on a call-out basis. The latter also has the ability to replace and repair offshore windfarms inter-array power cables.

The Wave Sentinel is stationed in Curacao alongside Curacao submersible spare plant depot. The Sovereign is based in Portland, UK, alongside Global Marine’s submersible spare plant depot.

For more information please visit the ACMA website in https://www.acma2017.com

Wave Sentinel

PIOCMA – Pacific and Indian Ocean Cable Mutual Agreement

The PIOCMA agreement comprises NAZ, Yokohama Zone and SEAIOCMA agreements. The agreement provides mutual support when natural disasters occur, providing an additional layer regarding the risk management solutions available to these agreements’ members.

The last time PIOCMA was invoked, was during 2006 Taiwan earthquake, that resulted in a dramatic speed reduction of internet traffic due to simultaneous faults in several cables. More recently PIOCMA was on alert following the Japanese Tsunami in 2011 although it was not called upon.

For more information please visit the PIOCMA website in http://piocma.com/piocma_overview.htm

Our Latest News:

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

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Posted: 25/06/2019

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

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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

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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...