Leading manufacturer of subsea & UPS, ROV and AUV batteries. Various application areas, ranging from marine research and monitoring to offshore industrial oil and gas projects.
Leading manufacturer of autonomous underway measurement systems (FerryBox) for pCO2 and other parameters. From ultra-compact instruments to complete rack systems.
Leading manufacturer of subsea & UPS, ROV and AUV batteries. Various application areas, ranging from marine research and monitoring to offshore industrial oil and gas projects.
Leading manufacturer of autonomous underway measurement systems (FerryBox) for pCO2 and other parameters. From complete rack systems to compact and lightweight analyzers.
Rechargeable Li-ion batteries are amongst the most efficient batteries
High power underwater Lithium-Ion rechargeable batteries
Li-ion batteries built in the Li-Ion PowerPack™ for AUVs and other vehicles
High-Performance, highly reliable and high-safety Li-ion Energy Storage System (ESS) for offshore subsea applications.
We build batteries to your needs
Our charger technology charges the PowerPacks™ safely and gently
The environmental monitoring and exploration of the sea
Very compact and uses the 19” format, which is established as an industrial standard
Innovative climate data acquisition at the ocean-atmosphere interface
Our fully approved high-efficiency Li-Ion batteries guarantee high-reliability AND high-safety for your AUVs, ROVs or offshore subsea Oil+Gas applications. We offer qualifications according to API17F, MIL-STD, UN T38.3, DNV-GL and others.
Standardized underway (“FerryBox”) and subsea measurement systems enable you to investigate any parameter at any place and in any depth of the ocean. We produce optical CO2 analyzers with autocalibration according to SOCAT standard.
The past two weeks have taken the SubCtech team across several key events of the international offshore, subsea and maritime industries – from Australia and the
SubCtech is supporting the crew throughout the expeditions and has equipped the ‘Dagmar Aaen’ with scientific equipment!
SubCtech has successfully achieved a major technical milestone in the development of a high-voltage, high-discharge-rate battery and charger system for a customer-defined underwater platform.
Meet us in Norway, Brasil & Abu Dhabi!
SubCtech has officially moved into its new headquarters at Fraunhoferstraße 17 in Kiel!
SubCtech has officially moved into its new headquarters at Fraunhoferstraße 17 in Kiel!
SubCtech part of AOK business run 2026 in Kiel!
Battery Storage Skid picked-up! Now on the way to our customer!
SubCtech starts new inhouse training sessions
Strategic partnership strengthens market position in maritime technology
Ocean Race Europe 2025 – Our Technology at the Heart of the Action!
SubCtech part of AOK business run 2025 in Kiel!
The exhibition will start on 08/04/ - come and meet us at booth N10!
The exhibition will start on 08/04/ - come and meet us at booth N10!
ESS video presentation on new Youtube-channel
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