10 years SubCtech – celebrations on June 18th

In January 2010, SubCtech GmbH was founded by Dipl.-Phys. Stefan Marx as a management buy-out. During the next years, SubCtech has established its position among leading manufacturers of ocean and subsea technology for industry and science.

To celebrate this occasion of the 10th anniversary, on June 18, 2020 the big celebration takes place. Customers, partners and friends of the company are cordially invited. More information will follow!


Oceanology International 2020, London UK, 17-19.3. March 2020 & other upcoming fairs

Fairs for 2020 are scheduled – we are happy to announce our participation for:

OI London (17-19.3.2020) – booth G300 – visit

Oceanology International offers the world’s leading forum where industry, academia and government share knowledge and connect with the ocean technology and marine science communities. Oceanology International’s world-class exhibition and conference help bring together marine professionals, businesses and organisations to improve their strategies for measuring, developing, protecting and operating in the world’s oceans.

  • Underwater and subsea Li-Ion Batteries for AUV, ROV, Offshore Oil+Gas
  • brand new OceanPack RACE system


OTC Houston (04-07.05.2020) – booth 3815 (co-exhibitor at Advanced Mechatronics GmbH booth) – visit

The Offshore Technology Conference (OTC) is where energy professionals meet to exchange ideas and opinions to advance scientific and technical knowledge for offshore resources and environmental matters.


ONS Stavanger (31.08.-03.09.2020) – visit

Founded in 1974, ONS has developed into a global energy meeting place connecting international suppliers, operating companies and decision makers.




OceanPack RACE® on Vendée Globe sailing yacht

Fabrice Amedeo (NEWREST) will participate Vendée Globe 2020 with our OceanPack RACE® system. See the teaser:


Water tank project for Puerto Bellavista

SubCtech has funded a drinking water supply in a remote region in Ecuador from last year’s profit. This helped a lonely village a lot, that previously only had brackish water and salt water for washing and cooking. The resulting lack for the children was a problem.

The volunteers Jakob and Max took over the project. Since they had been in Ecuador for almost a year, they know the region very well and were able to start the project quickly.

Together with the community members, 2 tanks, each with a volume of 10,000 L, were procured, transported and installed on site. A roof was installed above to protect the tanks from sun and rain. Bamboo was chosen for the substructure of the roof, as there was very good experience with this building material from other projects. Freddy, a builder who specializes in bamboo constructions, helped on the spot. This allowed the parishioners to learn how to use this building material professionally. In order to distribute the water to the households afterwards, taps have already been installed. One of them is directly below the tank and the other in the middle of the village.

In October 2019, the first tank filling was brought to Puerto Bellavista by a tanker and since then more than 400 water canisters have been distributed to households.

The business model stipulates that each use costs a small amount to ensure long-term operation.


Boot 2020 in Düsseldorf

With almost 250,000 visitors, boot Düsseldorf is the world’s largest boat and water sports fair and every year in January the “meeting place“ for the entire industry. From 18 to 26 January 2020, around 2,000 exhibitors will be presenting their interesting new products, attractive further developments and maritime equipment.

Meet SubCtech on „love your ocean“ booth -> E04 – hall 11 between 19 an 21 january. A company’s representative will be there presenting our new OceanPack RACE® – system.



OceanObs 2019 in Honolulu, Hawaii

Dr. Stefan Raimund (SubCtech France) and our distributor Mark Warren, ESNE (USA). More about ESNE at

Connecting Science and Society

As part of the decadal conference series, OceanObs’19 will galvanize the ocean observing community ranging from scientists to end users. OceanObs’19 seeks to improve response to scientific and societal needs of a fit-for-purpose integrated ocean observing system, for better understanding the environment of the Earth, monitoring climate, and informing adaptation strategies as well as the sustainable use of ocean resources. OceanObs’19 will continue to develop strategies for a sustained, multidisciplinary and integrated ocean observing system, and better connect user communities and observers.

Meet SubCtech at booth 103A


Greta sails with Malizia, OceanPack RACE on board

Team Malizia, skippered by Pierre Casiraghi and Boris Herrmann have the great honour and pleasure to sail Greta Thunberg from the UK to New York for the UN Climate Action Summit on Malizia II, kicking off a climate tour through the Americas over the next few months.
The Malizia team also developed the Malizia Ocean Challenge, a project to support ocean climate education and the monitoring of ocean CO2 using the OceanPack RACE® system build by SubCtech. This project is affiliated with the Prince Albert II of Monaco Foundation, a charitable organisation that supports work on environmental and climate change issues.

More infos: News Malizia and   My Ocean Challenge  monitoring pCO2 and other parameter

Twitter profile Greta and   „Friday For Future“ Homepage
Greta’s hashtags for the trip are #UniteBehindTheScience and #FridaysForFuture

Update: She did it – why all doubters? Regardless of all media events, we are proud of the young woman. And: good team Malizia!

Images by Greta (credit Anders Hellberg) and Team Malizia (credit BorisHerrmannRacing)


Li-ion battery for a fuel cell UUV

SubCtech has developed and built the Li-Ion battery for an innovative long range Unmanned Underwater Vehicle (UUV). The UUV is being developed by Cellula Robotics Ltd. under the Canadian All Domain Situational Awareness (ADSA) Science & Technology (S & T) Program developed and built. Known as “Solus-LR”, the UUV will have a target range of 2000 km and is designed to stay submerged for multi-month missions. The Li-Ion battery system works with the fuel cell system, taking power peaks and ensuring optimum power system operating parameters.

© Cellula Robotics


3rd Offsore Battery Days / Oslo Battery Conference, Norway, Oslo, 26-27. August 2019

The 3rd OBD Battery Conference will meet to discuss and provide a platform for technological innovations and business opportunities with the latest updates in that fields in Norway and abroad.

The conference is held once a year and is the leading Battery conference in Norway, bringing together participants from leading private and public companies, start-ups, investors, academics and businesses that are interested in the battery revolution.

During the 3rd Conference for Oil & Gas batteries we will meet you to discuss technological innovations and business opportunities with our latest technology updates. Talk and presentation on 26. August, 11:45. We kindly invite you to visit our exhibition during the conference as well.

More infos:


First Li-Ion battery system for manned submersible

SubCtech builds the first Li-Ion battery system for a manned submersible. The high voltage Li-Ion batteries are the start of a new family of high performance peak power batteries. We look forward to working with SubseaCraft, UK.