For a true net-zero economy—starting today.

Our mission

We turn climate ambition and net-zero initiatives into high-impact climate progress for enterprises—supported by science, insight, and vetted projects in a future-ready platform.

The CEEZER origin.

Founded in 2021, CEEZER started with a mission of facilitating high-impact climate action for large enterprises. We help companies that need to manage a complex set of requirements from multiple stakeholders, ensure quality, de-risk their climate strategy, and are required to report and communicate credibly to meet global climate targets.

Our team combines expertise in complex, multi-year investment structuring, deep knowledge of corporate climate action aligned with climate science, and on-the-ground experience in carbon project development. We hold ourselves to the highest quality standards: our planet cannot afford errors.

We built tools and systems to control for bias and temporary market trends, to ensure real lasting impact. We work closely with customers to ensure every element for a successful climate asset strategy is in place.

CEEZER’s experts team

Meet the team behind your
net-zero success.

Reaching net zero requires expertise and collaboration across many areas. From sustainability teams to the CEO office to the science, legal, and purchasing functions, CEEZER’s experts actively bring expertise and transparency to all stages of your net-zero journey.

Magnus Drewelies - Founder and CEO of CEEZER

Magnus Drewelies

Chief Executive Officer
LinkedIn profile link

Magnus Drewelies is the founder and CEO of CEEZER. Previously, he was Chief Strategy Officer at PARK NOW, part of BMW and Daimler’s mobility joint venture. Earlier he worked at Boston Consulting Group (BCG), where he advised industrial and private equity clients on sustainability transformations across Europe, the US, and Asia.

Magnus also co-founded and serves on the board of the German Association for Negative Emissions (DVNE), advancing local CDR policy in collaboration with industry leaders.

Dr. Carla Woydt

Chief Impact Officer
LinkedIn profile link

Dr. Carla Woydt is Chief Impact Officer at CEEZER, leading work with project developers and the scientific community. With a PhD in Biology and Psychology from Freie Universität Berlin, she has held sustainability roles in companies, consultancies, and at CDP, where she led international corporate programs on climate, water, and forests, and oversaw corporate commitments including the Science-Based Targets initiative (SBTi).

Dr. Carla Woydt - Chief Impact Officer at CEEZER
Hannes Nützmann - Chief Product Officer at CEEZER

Hannes Nützmann

Chief Product Officer
LinkedIn profile link

Hannes Nützmann is Chief Product Officer at CEEZER, where he leads product and engineering. Before co-founding CEEZER, he worked with Ecosia, helping monitor their portfolio of 200 million planted trees. Earlier in his career, he spent several years at BCG’s venture-building team, where he founded multiple ventures, including a marketplace for satellite imagery and processing.

Juliane Sterzl

Chief Revenue Officer
LinkedIn profile link

Juliane Sterzl is Chief Revenue Officer at CEEZER. Previously, she was Senior Vice President of Global Sales at CoachHub and has led and transformed international sales teams at LinkedIn, Skillsoft, GlobalData, and Gartner. She has a strong track record of revitalizing teams and driving exceptional revenue growth.

Juliane Sterzl - Chief Revenue Officer at CEEZER

Our scientific advisory board.

Our scientific advisory board features leading thinkers and experts from top institutions and across the industry to guide CEEZER’s science, quality, and market leadership.

Ceezer - Advisory Board - Noah Planavsky
Noah Planavsky
LinkedIn profile link
Yale University | Cascade | EDF
Enhanced Rock Weathering

Dr. Noah Planavsky is an isotope geochemist who studies environmental change across Earth’s history. He combines fieldwork, analytical chemistry, and novel isotope systems to trace atmospheric evolution, and now explores ocean oxygenation, long-term primary productivity, and carbon capture through enhanced mineral weathering.

Ceezer - Advisory Board - Kenneth Möllersten
Kenneth Möllersten
LinkedIn profile link
Yale University | Cascade | EDF
Carbon Removal & Policy

Dr. Kenneth Möllersten is a climate change mitigation expert with more than 25 years in technical CDR and both compliance and voluntary carbon markets. He conducted pioneering research on BECCS and now advises on UN Article 6.4 methodologies, bridging policy, market design, and project development for negative emissions.

Ceezer - Advisory Board - Jennifer Holm
Jennifer Holm
LinkedIn profile link
UC Berkeley | Cultivo
Forestry & Biodiversity

Dr. Jennifer Holm is a research scientist at Lawrence Berkeley National Laboratory focused on terrestrial ecosystem modeling, forest disturbance, and climate sensitivity. As Carbon Science Lead at Cultivo, she applies data-driven methods to identify high-impact land regeneration and enhance natural carbon sinks.

Ceezer - Advisory Board - Peter Ralph
Peter Ralph
LinkedIn profile link
UT Sydney
Ocean, Aquaculture

Dr. Peter Ralph is Director of the Climate Change Cluster at UTS, pioneering large-scale algae cultivation for food, energy, and bioproducts. He has over 300 publications and $18 million in research funding; his work with algae-based biorefineries and carbon capture advances the circular bioeconomy.

Ceezer - Advisory Board - Nathan Renneboog
Nathan Renneboog
LinkedIn profile link
Verra
Forestry

Nathan Renneboog is a natural solutions specialist with expertise in large-scale conservation, restoration, and voluntary carbon markets across the tropics. He combines geospatial technology and regenerative agriculture to deliver high-quality forestry credits, drawing on broad experience in government, academia, and business.

Our scientific advisory board.

Our scientific advisory board features leading thinkers and experts from top institutions and industry to guide CEEZER’s science, quality, and market leadership.

Ceezer - Advisory Board - Noah Planavsky
Noah Planavsky
LinkedIn profile link
Yale University | Cascade | EDF
Enhanced Rock Weathering

Dr. Noah Planavsky is an isotope geochemist who studies environmental change across Earth’s history. He combines fieldwork, analytical chemistry, and novel isotope systems to trace atmospheric evolution, and now explores ocean oxygenation, long-term primary productivity, and carbon capture through enhanced mineral weathering.

Ceezer - Advisory Board - Kenneth Möllersten
Kenneth Möllersten
LinkedIn profile link
Yale University | Cascade | EDF
Carbon Removal & Policy

Dr. Kenneth Möllersten is a climate change mitigation expert with more than 25 years in technical CDR and both compliance and voluntary carbon markets. He conducted pioneering research on BECCS and now advises on UN Article 6.4 methodologies, bridging policy, market design, and project development for negative emissions.

Ceezer - Advisory Board - Jennifer Holm
Jennifer Holm
LinkedIn profile link
UC Berkeley | Cultivo
Forestry & Biodiversity

Dr. Jennifer Holm is a research scientist at Lawrence Berkeley National Laboratory focused on terrestrial ecosystem modeling, forest disturbance, and climate sensitivity. As Carbon Science Lead at Cultivo, she applies data-driven methods to identify high-impact land regeneration and enhance natural carbon sinks.

Ceezer - Advisory Board - Peter Ralph
Peter Ralph
LinkedIn profile link
UT Sydney
Ocean, Aquaculture

Dr. Peter Ralph is Director of the Climate Change Cluster at UTS, pioneering large-scale algae cultivation for food, energy, and bioproducts. He has over 300 publications and $18 million in research funding; his work with algae-based biorefineries and carbon capture advances the circular bioeconomy.

Ceezer - Advisory Board - Nathan Renneboog
Nathan Renneboog
LinkedIn profile link
Verra
Forestry

Nathan Renneboog is a natural solutions specialist with expertise in large-scale conservation, restoration, and voluntary carbon markets across the tropics. He combines geospatial technology and regenerative agriculture to deliver high-quality forestry credits, drawing on broad experience in government, academia, and business.

Start your climate journey with CEEZER.

Whether you’re just getting started or ready to scale your impact, our team is here to help you succeed.

Let’s unlock climate action—together.

Talk to us