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SeaRenergy and Tethys Robotics Announce Strategic Partnership to Enhance Offshore Subsea Inspection Services

Hamburg, May 27, 2025

SeaRenergy and Tethys Robotics Announce Strategic Partnership to Enhance Offshore Subsea Inspection Services

SeaRenergy Offshore Holding GmbH is proud to announce a strategic partnership with Tethys Robotics AG, a Swiss innovator in subsea robotics. This collaboration will integrate the Tethys ONE system into SeaRenergy’s offshore service portfolio, enhancing the efficiency and quality of subsea inspections.

The Tethys ONE is a compact and powerful underwater robot designed for automated subsea inspections with maximum flexibility. Equipped with advanced navigation systems as well as acoustic and contact-based data collection sensors, it enables high-quality inspections even in challenging underwater conditions. Its ease of deployment and adaptability make it a valuable addition to SeaRenergy’s portfolio of offshore services.

Dr. Benjamin Vordemfelde, CEO of SeaRenergy, states:

„Integrating the Tethys ONE into our operations aligns with our commitment to leveraging innovative technologies to provide superior services to our clients. We believe this partnership will set new standards in subsea inspection efficiency and reliability.“

“We are excited to welcome SeaRenergy as an official partner,” says Jonas Wüst, CEO of Tethys Robotics. “Their extensive offshore footprint and technical expertise make them the perfect collaborator to demonstrate the full potential of the Tethys ONE system in offshore inspection campaigns.”

SeaRenergy will now offer offshore clients subsea services powered by the Tethys ONE, enabling more agile and cost-effective inspections across a wide range of assets, including wind farms, cables, and pipelines. The partnership will commence with pilot projects in the North Sea and Baltic Sea regions, focusing on the inspection of offshore wind farm structures and subsea cables.

For more information about SeaRenergy’s services and the Tethys ONE system, please contact:

SeaRenergy Offshore Holding GmbH
Sales Manager
Email: j.dannemann@searenergy.com 
Phone: +49155 601 032 64

Tethys Robotics AG
Julia Bislin 
Business Development Manager
Email: julia@tethys-robotics.ch 
Phone: +41 76 630 79 23

About SeaRenergy:

SeaRenergy is an independent provider of comprehensive services for all offshore wind industry stakeholders. It is involved in the whole value chain ranging from T&I concepts to installation and operation & maintenance. Founded in 2010, SeaRenergy offers consulting and engineering services as well as offshore marine, QHSE and contract staffing services for the full range of offshore professionals.

www.searenergy.com

About Tethys Robotics:

Tethys Robotics develops next-generation robotic systems for subsea inspection, making underwater operations smarter, faster, and safer. The Tethys ONE system empowers operators with flexible, easy-to-deploy, and highly capable inspection solutions with Swiss excellence in challenging underwater environments.

www.tethys-robotics.ch

Since 2023, we have embedded sustainability concepts into our daily operations through an internal awareness initiative. This initiative includes educational materials, practical tips, insights on current topics, and interactive events such as the Green Kayak Tour or excursions on environmental topics. We also prioritize suppliers for after-work and customer events that incorporate ecological aspects, such as the “Energiebunker” in Hamburg Georgswerder. Our daily operations reflect our commitment to sustainability, from an electric company pool car and company bikes to sourcing sustainable electricity and gas. 

Vita Bennet Möller

Managing Director
Elbe1

Bennet Möller, Managing Director of Elbe1 since 2023, initially joined the company in 2016 as a Technical Project Manager. Throughout his professional career he has acquired extensive experience in renewable energy project development and construction across Europe, the US, and APAC regions, consulting on various aspects such as M&A, TDD, EPCI and compliance management  of offshore wind farms. He holds Bachelor’s and Master’s degrees in Industrial Engineering.

Vita Jelte-Steffen Hipp

Managing Director
Elbe1

Jelte-Steffen Hipp, Managing Director of Elbe1 since 2023, has more than 15 years of experience in renewable energy, demonstrated in several international engineering projects, as well as certification, service, and warranty cases. He holds a Master’s Degree in Sustainable Energy Systems from Chalmers (Gothenburg) and a Bachelor’s in Energy and Environmental Engineering from TU Hamburg. 

Vita Alexander Vogel

Managing Director
Con4Mare

Alexander, holding a diploma in Naval Architecture, has been Managing Director at Con4Mare since 2013. With over 15 years of distinguished experience in the offshore wind industry, he has led international projects in various roles, specializing in Marine Operations and Marine Warranty Survey. Additionally, Alexander is a certified expert for cranes and lifting equipment, as well as in the examination of wire ropes in cranes.

Vita Andreas Puls

Managing Director
Con4Mare

Andreas assumed the role of Managing Director at Con4Mare in 2023. Graduating with a degree in physics, specializing in material science, he shifted to project certification for offshore wind farms in 2011. With over a decade of experience across various positions, he has spearheaded numerous projects in certification.

Vita Hagen Heesch

General Manager, CTO
SeaRenergy

Hagen Heesch, founder and initial owner of Elbe1 GmbH, joined SeaRenergy in 2019 and was appointed as CTO (ppa) in early 2023, overseeing SeaRenergy’s engineering activities.

With a degree in Civil Engineering, he brings 15 years of offshore wind experience, specializing in design, certification, and permitting consultancy. Before his entrepreneurial career, he worked at DNV-GL.

Vita Natalia Kress

General Manager, COO
SeaRenergy

Natalia Kress joined SeaRenergy as General Manager (ppa) in 2017. In early 2023, she was appointed as COO at SeaRenergy, overseeing the Sales & Execution department.

She has 15 years of experience in the offshore industry, especially in the installation and operation phases of offshore wind farms with a particular focus on heavy lift vessels and O&M offshore logistics. 

Vita Jan Boje Steffens

Managing Director
SeaRenergy

Jan Boje Steffens is the co-founder of SeaRenergy. He has more than 30 years of experience in the shipping industry, especially in the segments of breakbulk, heavy lift, and project cargo.

 

Until 2012, Jan was CEO and Partner of the Rickmers Group. Thereafter, he took the post as Managing Director of SeaRenergy.

Johann Philipp - General Manager SeaRenergy

Vita Johann Philipp

General Manager 
SeaRenergy

Naval architect Johann Philipp joined SeaRenergy’s BorWin / HelWin Project Team in September 2011 as an engineering consultant. He formally joined SeaRenergy in January 2013 and became General Manager (ppa) in 2016. 

With more than 20 years’ experience in structural engineering, Johann possesses a wealth of knowledge in conceptual and detailed ship design issues, technical project planning, and marine warranty surveys.

Vita Beispiel

Managing Director
CEO

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Vita Johann Philipp

Managing Director
CEO

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.

 

 

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Vita Benjamin Vordemfelde

Managing Director, CEO
SeaRenergy

Benjamin Vordemfelde joined SeaRenergy as Head of Business Development in 2013 and became Managing Director in 2014.

He has extensive corporate experience including 15 years of involvement in the shipping and media industries in the fields of Business Development, Investor Relations, Public Relations, and Asset Management.

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