Fremsyn's mission is to promote the green transition of the energy sector. Our work aims to replace fossil fuels with electricity, biogas, hydrogen, and other sustainable alternatives.
With you on every step.
Supporting the green transition
1 TWh
Handled in 2025
48M EUR
Group Turnover in 2025
5 Countries
DK - SE - NL - CH - DE
Biogas
Production
Anaerobic digestion plants and biomethane upgrading facilities across Europe.
Feedstock
Optimization
Biomass sourcing and yield optimization for higher biomethane output.
Biomethane
Trading
Certified green gas trading with guarantees of origin and ISCC compliance.
Battery Storage
Industrial BESS systems for grid stabilization and peak shaving.
Green Mobility
Infrastructure
EV charging and biogas refueling solutions for fleet and heavy transport.
Feedstock Optimization
Biomass sourcing and yield optimization for higher biomethane output.
Biogas Production
Anaerobic digestion plants and biomethane upgrading facilities across Europe.
Biomethane Trading
Certified green gas trading with guarantees of origin and ISCC compliance.
Battery
Storage
Industrial BESS systems for grid stabilization and peak shaving.
Green Mobility Infrastructure
EV charging and biogas refueling solutions for fleet and heavy transport.
Fremsyn provides fleet analyzes for municipalities and companies, offering all-encompassing, impartial advice
Bio Energy solutions
Fremsyn services
Advisory & Consulting
Certification & Compliance
Engineering & Infrastructure
At Fremsyn, we envision a future free of fossil fuels, powered by accessible, sustainable alternatives.
About
our company
With a commitment to delivering tailored solutions and actionable insights, our consulting firm empowers businesses to unlock their full potential and achieve sustainable growth. We bring a wealth of expertise and dedication to understanding and meeting the unique needs of each client.
Contact Us
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