SubCtech has more than 25 years of experience in scientific and industry-based marine technology.

We focus on the production of subsea power solutions – such as Li-Ion batteries, pCO2 analyzers and vessel systems – to monitor environmental issues.

Our products have unique technologies and are easy to maintain. They are built for the ocean’s roughest conditions what makes them perfect for industrial purpose and research.




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Volvo-Ocean-Race selects SubCtech for scientific equipment

© Ainhoa Sanchez / Volvo Ocean Race Actual Video: First sea trial on board „Turn the Tide on Plastic“, Lisbon 5. Oct. 2017 The complementary nature of the scientific programs insures knowledge exchange, maximizes public engagement, and provides Volvo Ocean Race with a powerful platform for environmentally, socially and financially sustainable outreach. With the scientific […]



SubCtech supports Shell XPRICE

 A $7 million global competition challenging teams to push the boundaries of ocean technologies by creating solutions that advance the autonomy, scale, speed, depths and resolution of ocean exploration. The success of this prize will allow us to fully explore and map the ocean floor, and uncover our planets greatest wonder and resource for the […]



2nd Oil-Gas-SubSea battery conference Oslo 2017

  SubCtech GmbH – manufacturer of Li-Ion Subsea Batteries, sensors and data loggers for the subsea and offshore market. The safe and reliable Li-Ion Batteries with ultimate capacity have proven themselves reliable for Offshore Oil+Gas and as batteries for equipment carriers e.g. AUVs. We guarantees highest availability, simple operation and diagnosis, even during on-board operation under […]



Offshore Technology Conference 2017, Houston

SubCtech develops highly reliable, efficient and safe Li-Ion battery systems for the subsea market. As an overview we present the latest Li-Ion subsea battery system. We are happy to meet you on booth 3625-3, Hall B shared with WITTENSTEIN motion control and its unique subsea actuator SSEAC®.(above photo left)  More infos:  and Left Photo: (c) WITTENSTEIN […]



Ocean Business, Southampton UK, 4-6. April 2017

Ocean Business is a hands-on technology exhibition as it provides visitors with the chance to see systems first hand.You are invited to visit us at booth Q2. Ship underway pCO2 measurement systems on board FS POLARSTERN Underwater Li-Ion Batteries and Condition Monitoring, AUV batteries For more details of the SubCtech product range in UK or Ireland […]