The Team

The Team

The SeaTwirl team is small, ambitious and highly motivated with extensive technological expertise and entrepreneurial experience. The team provides a strong base for the key technology development of the floating wind turbines.

SeaTwirl's engineers represent a wide range of backgrounds that cover the key technology areas for SeaTwirl's products, such as design, simulation, hydrodynamics, testing and mechanical construction.

Gabriel Strängberg, Managing Director

Gabriel Strängberg, MD

CEO since 2013. BSc from University of Central Florida, MSc Engineering from Chalmers. Before he became CEO of SeaTwirl, Gabriel was CEO and technical director at a mechatronic company.

Efva Willén, Business developer

Efva is a naval architect from Chalmers University of Technology, with extensive experience within marine and offshore engineering. At SeaTwirl, Efva mainly contributes with her experience within business development but also with her technical skills within areas such as stability and fluid mechanics.

Erik Steinholtz, Project Manager

Erik gained a Master's degree from Chalmers University of Technology in Mechanical Engineering, specialising in Marine Technologies. Erik brings expertise and experience to SeaTwirl in the form of project management, hydrodynamics, structural and mechanical engineering.

Daniel Ehrnberg, Chief Innovation Officer

Daniel is the inventor and founder of SeaTwirl and is now working for the company as Chief Innovation Officer and technical specialist. He has a strong interest in energy technology and innovation. Daniel has experience from building companies and of development projects in several energy fields, such as energy storage, electric vehicle development, wind energy, wave energy and Stirling engines. He holds a Master of Science in physics and received an award from King Carl XVI Gustaf in 2010 for his work in the “sustainable development of wave energy”.

Andreas Blom, Chief Financial Officer

Andreas Blom has Master's degree in finance and accounting and a background as an accountant at EY. He has many years of experience from finance and accounting roles at early development stage companies and is currently responsible for the finances of GU Venture's portfolio companies. He will be working as CFO for SeaTwirl on a consultancy basis.

Andreas Börjesson, R&D Design Engineer

Andreas gained a Master of Science in Mechanical Engineering from Chalmers University. He brings great design engineering skills and a positive attitude to the team to help us reach our goals.

Julia Skälegård, R&D Project Engineer

Julia graduated from Chalmers University with a BSc in Mechanical Engineering. Her strong drive ensures that projects are finished on time as we strive to create a sustainable society.

Vahik Khodagolian, Sr. Fluid Dynamics Engineer

Vahik has extensive experience in the field of applied fluid dynamics/aerodynamics in projects ranging from aeronautics, automotive, oceanography to offshore and biomimetics. He holds a Master of Philosophy in Aeronautical Engineering. He has an inquisitive nature and often produces unconventional design ideas. In combination with his thirst for new challenges in exciting projects, this makes him a valuable member of the SeaTwirl team.

Martin Rosander, Sr. Structural Engineer

Martin has a background in calculations and project management with a special focus on composites for the offshore industry. As a aeronautical engineer from KTH (Royal Institute of Technology) Martin contributes constructively to the team. Martin also has a long experience in manufacturing for the offshore industry, giving him a large network of contacts. The specialisation in fatigue calculations is also valuable in the work on SeaTwirl S2.

Jonas Boström, R&D Design Engineer

Jonas is a Naval Architect graduated from Chalmers University of Technology and have experience from previous employment within class society and mechanical design for offshore equipment. Jonas contributes with a keen eye for design and interfaces of mechanical systems, especially in the harsh ocean environment. Jonas is a solution and result orientated team player that stirs around to get forward and beyond.


The team also consists of several experts providing business and technology development support.

“Right from the get-go, SeaTwirl has been built and developed for offshore wind power industry. We use all the benefits of offshore wind without any tweaks or duct tape solutions.”
Erik Steinholtz
Project Manager, SeaTwirl

The Board

Roger Cederberg, Chairman of the Board

Chairman of the board since 2012. MSc Physics, PhD Computer Engineering, MBA. Working chairman of the board in SeaTwirl. Roger works with business development and investments for GU Ventures and is as such involved in several companies. He has extensive experience from leading positions in business, among others CEO of Teragon Systems, marketing director of Hasselblad, CEO of IVS and SVP of IFS AB.
Interested in investing in SeaTwirl? Contact

Daniel Ehrnberg, Inventor and Board member

Board member since 2012. MSc Physics from Gothenburg University. Daniel is the inventor and founder of SeaTwirl and is now working for the company as Chief Innovation Officer and technical specialist. He is the owner and CEO of Ehrnberg Solutions AB and Spira Energy AB and is employed on a project basis at Chalmers University of Technlogy. He has experience from building companies and developing technology in many energy related areas, such as energy storage, electric car development, wave energy and Stirling engines. In 2010 he was awarded a stipend by King Carl XVI Gustaf for his work in wave energy.

Katarina Frotjold, Board member

Board member since 2013. MSc Engineering from Chalmers. Senior project manager at Goovinn AB. Katarina has extensive experience from both the automotive and wind power industries with different positions at Volvo Cars, Volvo Trucks, Volvo Penta, SKF and Triventus Consulting.

Pontus Ryd, Board member

Board member since 2016. MSc Engineering, Lic Eng Energy Conversion Technology. Part-owner with several board assignments for Solvina. Pontus has over 20 years of experience as an entrepreneur and expert consultant in the power and process industries with international contacts with grid operators and power companies.

Peter Laurits, Board member

Board member since 2017. MSc Engineering from Chalmers. Part-owner and CEO of Concept Träningsredskap AB. Between 2008-2013 Peter was the CEO of Corroventa Avfuktning. Before that he had several positions in Saab Training Systems, among others VP and Head of Sales.

Are you interested in our products?

Interested in how SeaTwirl can help your energy project deliver renewable energy at the lowest cost available? Welcome to contact us for a more in-depth presentation of our products and projects!

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Contact us by phone or email

Gabriel Strängberg

Managing Director

Phone: +46 70-480 55 29