About us

How we work

We help our customers calculate and reduce their carbon emissions and finance climate projects. Our ClimatePartner certified label guarantees transparency and credibility: consumers can use the climate-ID number of a product, company, or another category to find out the amount of calculated emissions, the relevant reduction measures, the supported climate projects, and more information such as the Sustainable Development Goals met by the project.

Our projects

Our customers can financially contribute to climate projects that comply with recognised standards, such as the Gold Standard and the Verified Carbon Standard. These projects are located in different regions around the world and employ various carbon reduction and avoidance technologies. Certified climate projects contribute to several of the United Nations’ Sustainable Development Goals, providing additional benefits to the local communities.

Our story

From a small apartment in Munich, to a roster of over 6,000 clients and more than 500 employees across offices in Berlin, Barcelona, Boston, Essen, Frankfurt, London, Milan, Munich (HQ), Paris, Stockholm, The Hague, Vienna, and Zurich – find out how our founders built a company with a global impact.


hands in the air

Moritz Lehmkuhl, Founder and Managing Director

Moritz came across the topic of climate action in 2003. At that time, he was managing an EU-funded project and developed a concept for how companies can get involved in climate action. In 2004, he became self-employed in this field and founded ClimatePartner in 2006. Moritz holds a degree in Business Administration from the University of Münster, was a post-graduate student at Harvard University and the Indian School of Business, and was awarded the title of Young Global Leader by the World Economic Forum in 2010.

Moritz Lehmkuhl

Klaus-Peter Siemssen, CEO

Klaus-Peter Siemssen is an experienced entrepreneurial leader. He was previously Managing Director of Occhio and CEO of Selux, and he has supported companies in change management and digital transformation as a consultant. At ClimatePartner, his focus will be on further developing the entire organisation, following the strong growth of recent years.

Klaus-Peter Siemssen

Work with us

We believe that taking climate action is the greatest platform for change – and that together, we can improve lives. With ClimatePartner, your work will help businesses achieve their most ambitious climate action plans to leave our planet a little better than we found it. Are you ready to build a rewarding career and a better future for all?

three people sitting in the sun