About OpenCO2.net

OpenCO2.net has Finland's most extensive emission factor database and standard-based tools to support your company's journey towards carbon neutrality. With the tools of OpenCO2.net, companies can quickly and reliably determine and monitor their greenhouse gas emissions, model emissions trends, find relevant and reliable emission factors, and increase their positive carbon handprint. We grant the Carbon Footprint Label for certified calculations.

The service has been developed by Clonet Oy together with Codelia Oy.

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Purpose and vision

  • Our purpose is to produce reliable carbon footprint information to support decision-making.
  • Our vision is to make the carbon footprint visible in all products in an understandable format.


Our experts have decades of experience in sustainable development, and we have helped companies reduce their carbon footprint with the tools of the OpenCO2.net platform.

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Our team

Our experts have decades of experience in sustainable development and emission calculation.

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Are you interested in working with us?

Contact us, and we can think about how we can work together.


Sari Siitonen

Founder and CEO


+358 40 761 5221