The go-to Platform for
green Assets 


We Risk to miss the 1.5°C pathway. It is time to act now

23 000 000 000 tons of CO2 need to be reduced by 2030 for 1.5°C pathway, 1-2 GT CO2 need to come from voluntary carbon markets.
Nature-based carbon removal projects will have to play an important role to decarbonize the atmosphere.

Our Vision

The “Callirius Integrity Shift” is the development of a Platform for the continuous rising demand in high quality Carbon Removal Projects and which provides access for all stakeholders in the best transparent way.


Our Mission

Our mission is to revolutionize the way people and companies take responsibility for the climate. Callirius provides the matching platform for project owner, corporates, investors and individuals. Reliable, efficient & trustworthy.


Only 10% of screened carbon projects accredited by international standards, such as Gold Standard and Verra, pass our evaluation criteria and can demonstrate a true climate impact. 


We eliminate the intransparency of prices and the reduction of unnecessary intermediate stages for the relevant carbon certificates.

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We maximize your climate impact and mitigate risks by managing a dynamic and diverse portfolio of carbon projects with different methods around the globe.


We operate exclusively with carbon projects with a net positive impact on the environment, biodiversity, social justice, and human rights. 

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Climate friendly by design

  •  We offer only high quality assets.

  • All of our carbon credits are related to nature based carbon removal projects.

  • The Callirius platform runs on the Polygon chain, which  features a climate friendly Proof-of-Stake consensus protocol. 

  • We offset all of our carbon emissions with high quality carbon credits.

Our journey
has begun


We are building a green asset platform, based on transparency and integrity, setting a new standard for the voluntary carbon market.
Climate solution and responsibility become a part of our everyday lives and we can enable the larger systemic change required to combat climate change.


Tim Schuldt


Rudolf Maier



Callirius is committed to bringing together individuals from different backgrounds and perspectives. 

We believe that life is a learning journey and each person brings unique expertise to our team and gets to grow in one's role.

If you’re a kind, passionate, collaborative problem-solver and are looking for a new opportunity to make a difference, join us!

Sourcing Specialist

Zurich / Munich

You will primarily focus on emission reduction project leads, opportunities and potentially other areas in Europe. You will be responsible for initial project assessment, potential leads follow-up, and terms negotiation in this role. This exciting opportunity entails a combination of administration, business development, project analysis, and stakeholder/client engagement.