It was established in 1999 when
Global Crossing purchased
British Telecom and
Cable & Wireless marine operations and merged them. In 2004, Global Marine Systems was purchased by Bridgehouse Marine and was completely restructured. In September 2014, GMS was acquired by HC2, and in 2020 by JF Lehman & Partners. Historically, the company has a legacy of over 160 years of cable installation, stemming from the first telegraph cables laid in the 1850s. at anchor in the Solent Global Marine has a worldwide presence, with offices in
Chelmsford, UK and Singapore; depots in Portland, UK; Bermuda; Victoria, Canada;
Batangas, Philippines and
Batam, Indonesia; Ships are stationed around the world to support both installation of new cables and the maintenance and protection of existing cables. The company is also involved in joint ventures with
China Telecom and
Huawei. Since 2002 Global Marine has become increasingly active in the installation of submarine power cables and gained significant market share in the European Offshore Renewables market, in addition to undertaking a number of large power interconnect projects. The company was responsible for installing the cables connecting the turbines on a host of
windfarm projects including Blythe (one of the first trial farms),
Horns Rev 1 (the first major commercial
windfarm in Denmark), Thornton Bank,
Kentish Flats and others. To support this business Global Marine formed a subsidiary in 2011 called Global Marine Energy. The development of the energy business included the opening of a new office in
Middlesbrough and the construction of a specialist vessel,
Cable Enterprise. The subsidiary company was sold to
Prysmian Group, the world’s largest cable manufacturer at the time of sale, in September 2012. Global Marine today focuses primarily on supporting the telecoms, oil & gas and deep sea research markets. In March 2025, GMS was purchased by
Keppel Corporation. == Group historical achievements ==