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Hydro Group

Hydro Group plc

Aberdeen, United Kingdom

Naval SystemsCommunications & SATCOMDual-use
Founded 200251-200 employeesComponent Supplier, Subsystem ManufacturerSupplies Naval Forces, Defense Industry
Profile last updated: June 19, 2026

About

Founded in 2002, Hydro Group is a defense component supplier based in Aberdeen, United Kingdom working in naval systems, communications & satcom.

Hydro Group is a subsea connectivity company that designs, manufactures and tests electrical, optical and hybrid cables, connectors, penetrators and interconnect packages. Its products serve the oil and gas, marine renewable energy and defence sectors. Hydro Group was formed in 2002 from the combination of Hydro Bond Engineering and Hydrocable Systems. It has facilities in Scotland, the USA and Singapore, and supplies sovereign defence organisations and the UK Ministry of Defence. Its defence offering includes tactical radio connectors through its Trexon family brands, and it holds ISO 14001:2015 accreditation for its management system.

Location

Aberdeen, United Kingdom

Founded

2002

Employees

51-200

Company type

Private company

Legal name

Hydro Group plc

Focus areas

subsea connectorssubsea cablescable assembliesinterconnectunderwater connectorspenetratorstactical connectorsdefence

Languages

EN

Products & capabilities

Defense domains

Naval SystemsCommunications & SATCOM

Supply-chain role

Component SupplierSubsystem Manufacturer

What they offer

HardwareComponentsManufacturing ServicesEngineering Services

Markets

Also sells to civilian markets

Products

HMK Hydro Metal Keyed Underwater Mateable Electrical Connectors

Underwater electrical connector

Metal-keyed underwater mateable electrical connectors for subsea applications.

HRS Hydro Rubber Sealing Underwater Mateable Electrical Connectors

Underwater electrical connector

Rubber-sealed underwater mateable electrical connectors for subsea use.

Power Tray Connectors for Tacom and SINGCARS Applications

Tactical radio connector

Power connectors for TacCom and SINGCARS radio applications.

Fibre Optic Manned Penetrator

Submersible penetrator

Fibre optic penetrator for manned submersibles.

Subsea Cable Assemblies

Subsea cable

Bespoke electrical, optical and hybrid subsea cables and assemblies, including ROV tethers and umbilicals.

End users

Naval ForcesDefense Industry

Standards, platforms & customers

Defense standards

MIL-DTL-55181MIL-DTL-55116MIL-C-10544

Named customers

UK Ministry of DefenceForum EnergyKIOST

Credentials & affiliations

Certifications

ISO 14001:2015

Awards

Queens Award for Enterprise: International Trade

Her Majesty the Queen (Queen's Awards for Enterprise)2018

Company of the Year

Subsea UK Awards2017

Fastest-growing international sales league table

Sunday Times2017

Made in Scotland awards

Royal Bank of Scotland2016

Other defense companies in United Kingdom

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