Jan brings a unique blend of environmental expertise and startup savvy to his role as an investor at Hitachi Ventures. His journey into the world of startups began at a Rocket Internet’s company, where he supported the COO with operational activities, including mergers and acquisitions, and market expansion strategies. Jan refined his expertise in startup consulting and venture capital while at PwC and BMW i Ventures, showcasing his talent for identifying promising investment opportunities (Bcomp). In 2021, he transitioned to HVG driven by a mission to develop and expand the fund’s environmental practice and ever since has been engaged with deals such as Ascend Elements, Makersite, BeZero, Samsara, Cyclic & Captura. He holds a B.Sc. in Environmental Economics from University of Heidelberg.
Areas of Interest
- Carbon Economy
- CCUS
- Circularity
- Energy
Active Investments
Previous Investments
Sustainable closed-loop Battery Recycling returning active battery materials back into the supply chain
Developer of a battery resources technology designed to provide sustainable, closed-loop battery materials systems. The company’s EV battery recycling to commercial-scale production of lithium carbonate, NMC precursor (pCAM), and cathode active materials (CAM), Ascend Elements is revolutionizing the production of sustainable lithium-ion battery materials, enabling clients to have a good return on assets to drive recycling and low-cost battery materials economically.
CEO
Mike O’Kronley
Sectors
Environment
Industrial
Stage
Series D
HQ
Massachusettes
Deal Team
Tobias Jahn
Galina Sagan
Jan Marchewski
Global ratings agency and risk analytics for the global voluntary carbon market (VCM)
BeZero is the carbon ratings agency. Its ratings and risk products equip world-leading organisations with the knowledge, tools and confidence to make better climate decisions. Its aim is to scale investment in environmental markets that deliver a sustainable future.
CEO
Tommy Ricketts
Sectors
Environment
Stage
Series B
HQ
London
Deal Team
Tobias Jahn
Galina Sagan
Jan Marchewski
Captura specializes in direct ocean carbon capture, employing technology and leveraging the ocean's natural carbon removal capabilities.
Developer of Direct Ocean Capture (DOC) technology, which removes CO₂ directly from seawater using a proprietary electrodialysis method. This process leverages the ocean’s natural carbon absorption capabilities, powered by renewable energy, to produce a pure CO₂ stream that can be sequestered or used to create low-carbon products. The system is designed to be scalable and environmentally friendly, with no additives or by-products.
CEO
Steve Oldham
Sectors
Environment
HQ
California
Deal Team
Pete Bastien
Jan Marchewski
Creating a Circular Economy for Rare Earth Elements
Cyclic Materials creates a circular supply chain for rare earth elements and other materials critical to supporting the energy transition. They provide solutions for recycling of magnet-containing products made from critical minerals, enabling the creation of a domestic supply chain for REEs through an economic and sustainable magnet recycling process.
CEO
Ahmad Ghahreman
Sectors
Environment
Stage
Series B
HQ
Ontario
Deal Team
Tobias Jahn
Jan Marchewski
Elena Ballesteros
AI & Data Platform powering sustainable product and supply chain decisions.
Makersite is a pioneering Product Lifecycle Intelligence platform that helps product teams to manage product sustainability, supply chain risk, cost, and compliance in real-time, all in one place. Makersite combines manufacturers’ product and supply chain data, held within multiple systems, with our own data foundation made up of 140 material, process and supplier databases to create a digital twin of their products and their supply chain, allowing teams to collaborate more effectively so that they can design, source and manufacture better products up to 50x faster than traditional methods. With a global workforce and a customer base including Microsoft, Schaeffler, Cummins and Vestas, Makersite’s goal is simple: Make better products, faster.
CEO
Neil D’Souza
Sectors
Environment
Stage
Series A
HQ
Stuttgart, Germany
Deal Team
Tobias Jahn
Galina Sagan
Jan Marchewski
The AI operating system for manufacturing and supply chain operations.
Exited
Regrello is building an AI-powered supply chain manager that combines traditional and generative AI to automate end-to-end operational and back-office workflows. Regrello auto generates process diagrams and eliminates manual work, accelerates cycle times, and transforms fragmented processes into intelligent, adaptable systems built for speed, scale, and efficiency.
CEO
Aman Naimat
Sectors
Digital
Industrial
Stage
Series A
HQ
California
Deal Team
Wolfgang Seibold
Jan Marchewski
Pratik Malhotra
Enzymatic plastic recycling plastics back to their original chemical building blocks.
Revolutionary enzymatic technology platform designed to infinitely recycle plastic waste. Samsara’s tech is capable of breaking down plastic into its core molecules in minutes, regardless of color, type and state. The monomers can then be reused again as virgin equivalent inputs in new plastics or upcycled to more valuable commodities.
CEO
Paul Riley
Sectors
Environment
Stage
Series A
HQ
Sydney
Deal Team
Tobias Jahn
Jan Marchewski