On a mission for net zero emission

We believe we can build a better future; where humans, technology and nature live in harmony.
To accelerate the transition to a sustainable future by using technology to support the carbon cycle, i.e. removing CO2 from the atmosphere and returning it to the Earth.

Pragmatic Engineering for Climate Urgency

We realize the urgency of the climate crisis and the need for practical solutions. That's why we're committed to developing machines that use proven technology to remove CO2 from the air, as quickly as possible.

A Piece of the Puzzle Towards Net-Zero Emissions

By working collaboratively, we can play a crucial part in building a more sustainable future and the restoration of our ecosystem. Most of our efforts to combat climate change should be focused on reducing emissions, but we also need to start scaling carbon removal now if we are to meet our net-zero goals as quickly as possible.


Mission-Driven Engineering Team

Thoralf Gutierrez
CEO & Co-Founder
Spent five years at Tesla's Silicon Valley HQ, where he led the development of their big data analytics stack to increase speed of iteration on their hardware products, and built the engineering team behind it. He embodies the culture vital for rapidly scaling a hardware company.
Gauthier Limpens
CTO & Co-Founder
PhD in Thermodynamics who loves to get his hands dirty, from constructing heat pump prototypes in the lab to a year-long venture building solar and battery systems in Uganda.
Barak Gruberg
Everything Engineer
PhD in Particle Physics from Oxford. He spent eight years at CERN, where he worked on control systems, detectors, and data analysis. He embodies first-principles thinking. Most recently learning how to weld.
Brieuc Verougstraete
Sorbent Development
PhD in Carbon Capture, he has dedicated five years to innovating solid sorbents and pioneering new temperature swing adsorption methods. His deep domain expertise is invaluable to our team.
Pierre-Louis Christiane
Brings a wealth of experience from his career in impact investing, consulting at BCG, and an MBA from INSEAD. With previous experiences in scaling up companies, he is always on the lookout for closing deals, modelling financials or building partnerships.
Sibylle Soers
Founder's Associate
Coming from a family of entrepreneurs, she has a strong bias for action. Her background in Chemical Engineering, combined with a Master's in Management from INSEAD, enables her to support the company's founders across all verticals of the business.
Pierre Ceysens
Systems Engineer
Comes from three years at Aerospacelab, a rapidly growing new space company, where he built things that are now flying in space. He is now leading the systems engineering of our direct air capture machines.
Thomas Majerus
Machine Designer
Self-taught Mechanical Engineer. He invented and built his own electric “road board.” On sunny days, you’ll spot him cruising Brussels on it. Now, he designs our DAC machines from scratch.
Sameer Shaik
CFD Engineer
Improved efficiency of fossil-fuel furnaces for a UN project at the IIT Delhi, but quickly realized he wanted to build a cleaner future. He then found his way to Europe's best engineering schools and now leads CFD for our DAC machines.
Christophe Chenut
Electro-Mechanical Engineer
Built the award-winning fin system for the solar car that became World Champion in 2023, after 30h of racing in the heat of Australia for the World Solar Challenge.

Press coverage

European climate tech founders are heading to Kenya
Former Tesla engineer leads Belgium's first DAC technology climatetech startup Sirona Technologies
Sirona Technologies, Cella Аnd Great Carbon Valley To Partner On Kenyan DAC Hub
Sirona Technologies moves to Kenya
Record de fonds fléchés vers les start-up climatiques européennes
Join the mission
Climate change is the defining challenge of our time.
Join us to make a meaningful impact on this most important problem.