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Transparent

We ensure full transparency on all of our solutions. Tracking your carbon credits on-chain means every transaction is transparent and easy to access, eliminating hidden pricing and unnecessary red tape. You get the relevant carbon certificates at the right price.

High Quality

We manage a dynamic and diverse climate portfolio with nature-based climate solutions around the globe. All climate solutions are screened to ensure quality, passing strict evaluation criteria. This way we can maximise your climate impact.

Local

Our climate projects create true community impact by focusing on solutions that strengthen the local biosphere. We work exclusively with projects which guarantee a net positive impact on the environment, biodiversity, social justice, and human rights.

The world must come together to confront climate change.

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The world must come together to confront climate change.

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Forest

Forest

We all know trees pull in carbon for photosynthesis, taking it out of our atmosphere, and storing it for the life of the tree. Our solutions include reforestation and afforestation, as well as enhanced forest management practices. Creating forests that are resilient, adaptable, biodiverse, and carbon-rich.

Ocean

Ocean

The ocean is a massive carbon sink, sequestering 40% of the carbon emitted through fossil fuel burning since the industrial revolution. We work to protect the seafloor and increase biomass in the ocean through alkalisation and fertilisation. The ocean is an essential tool in mitigating the climate crisis.

Wetlands

Wetlands

Wetlands are essential for local biodiversity and the future of our climate. They are one of the few land-based ways to permanently store carbon. Whilst providing important solutions to reduce the effects of climate change. Wetlands not only hold massive amounts of carbon but also store additional carbon we’ve released into the atmosphere.

Soil and Agriculture

Agriculture

More carbon is stored in soil than in all aboveground plants. Through land modification strategies, we can alter the global carbon cycle by increasing the soil’s organic carbon stocks and biomass production. We also use soil management strategies to increase carbon concentrations in the soil.

Secure funding
for your carbon solution

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How we enable climate solutions

Explore our solutions

We favour nature-based solutions at Callirius. This is because they are the only scalable and economically viable solution for the active removal of CO2. Every climate project you find through our platform is qualified to the same standards. 

All of our solutions are…

Transparent

We ensure full transparency on all of our solutions. Tracking your carbon credits on-chain means every transaction is transparent and easy to access, eliminating hidden pricing and unnecessary red tape. You get the relevant carbon certificates at the right price.

High Quality

We manage a dynamic and diverse climate portfolio with nature-based climate solutions around the globe. All climate solutions are screened to ensure quality, passing strict evaluation criteria. This way we can maximise your climate impact.

Local

Our climate projects create true community impact by focusing on solutions that strengthen the local biosphere. We work exclusively with projects which guarantee a net positive impact on the environment, biodiversity, social justice, and human rights.

Meet the team​

The Callirius team uniquely brings together over 100 years of experience in the finance and banking sector. This enables us to create tailor-made financing solutions through a data-driven, science-backed, and well-regulated framework.

Ebrahim Attarzadeh

Co-founder, CEO & Chairman

I hold a master’s degree in economics and after more than 20 years in Banking I have decided to be part of the fight against climate change. Outside work you find me doing watersports, skiing and spending time with my three boys.

Rudolf Maier

Co-founder, Head of Distribution

I have been an investment banker for more than 25 years, and now it was time for a change. I couldn't be more excited to start a new episode in the space of green and sustainable assets with my friends and former colleagues. I love to see my 2 boys growing and hope they have the opportunity to enjoy our wonderful planet as much as I do.

Michael Grohman

Co-founder, Head of Project & Policy

If you can combine the skills learned from 20 years in banking and the passion for nature to fight climate change, it is not only a privilege but also a duty. I want to contribute to shaping a sustainable and liveable future for our kids.

Tim Shuldt

Co-founder, Head of Product & Technology

I am an ex-Banker with a passion for programming and decentralised ledger technology, helping the world in its fight against climate change by combining my technological and financial know-how.

Ulrich Franke

Head of Financing Solutions

Asset-Backed Financing has always been my professional focus. Therefore, I am supporting Callirius and the community to find ways to combine the concept of secured financing with an understanding of nature as an asset in order to create Nature-Backed Financings.

Thomas Götschmann

ad-interim CFO/COO

I am a serial entrepreneur, convinced we can save our planet with the right incentives to auto-control carbon emissions and invest into carbon removal.

David Steinmetz

Climate Scientist

I’m an environmental scientist with a Masters in Economic Geography. I want to contribute to a sustainable future by helping to implement effective climate protection projects. In my spare time I can be found hiking in the mountains or playing spikeball.

Julian Böll

Data Scientist

I am a research scientist with a background in experimental and applied fundamental physics and chemistry. The Climate Crisis drives me to contribute my knowledge of natural sciences and passion for r&d to the global effort of carbon removal. Outside of work and science I am typically in the mountains: mountaineering, rock climbing, riding my mtb or splitboarding.

Marina Herías-Sáenz

Business Strategist

I am a management engineer, with experience as a business strategist and consultant in the Financial industry. I am determined to bring Climate Finance into effective urgent action to add constructive value to global society. Outside the office you can likely find me in the mountains, enjoying live music, between the cookers or on my yoga mat.

Jonas Landgraf

Product specialist

After working in banking and e-commerce, I realised we are heading towards a cliff and it is time to build a bridge towards a sustainable future, both for us and the next generations. I am proud to be part of the fight against climate change. In my spare time, you can find me playing beach volleyball, skiing and spending time in the beautiful little forest next to my home.
ABOUT OUR NAME

We chose the name Callirius, as it is an affix of Silvanus, who was the Greek deity of the woods. Callirius means „king of the wood“ in Roman Britain. Taking care of woodlands plays a key role in reducing our carbon footprint, meeting the 1.5°C targets, and fighting climate change.