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Johannes Fiegenbaum

Johannes is a sustainability consultant and early-stage climate tech investor. With a background in marketing technology, he now helps companies grow sustainably—whether through ESG strategy, carbon accounting, or positioning for Article 9 VC funds. He regularly writes about corporate decarbonisation, product LCAs, and climate innovation, drawing on hands-on experience with startups, investors, and sustainability leaders across Europe.

Sustainability and ESG in 2025: Next-Gen Metrics, Technologies, and Compliance

Sustainability in 2025 goes far beyond the CO₂ footprint. Companies must collect more comprehensive

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Why an ESG Strategy is Essential for Startup Success

Why is an ESG Strategy Important for Startups?ESG (Environmental, Social, Governance) is not a...

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EU Taxonomy: Practical Checklist and Guide for Companies

The EU Taxonomy is a key tool of the EU to promote sustainable investments. It provides clarity on...

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5 Key Success Factors for Scaling Start-ups in 2025

Start-ups face new opportunities in 2025 – and just as many new challenges. Sustainability is no...

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How Startups Can Overcome Common CO2 Accounting Challenges

Startups often fail at CO2 accounting – but there are solutions. Common mistakes like poor data...

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The 7 Key ESG Metrics Every Company Should Track in 2025

ESG metrics help companies achieve their sustainability goals, minimize risks, and seize...

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