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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.

AI for Impact Startups: Cut CO₂ Costs Without Funding

Discover how impact startups leverage AI to reduce CO₂ emissions and cut costs without external funding. Practical tools, frameworks & real examples.

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ESG vs. CSR: Navigating the Shift to Sustainable Corporate Strategies in 2025

Discover how ESG replaces CSR as the new standard for sustainability, with binding regulations and measurable impact starting in 2025.

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10 ClimateTech Markets Under €1B: ESG & Profit Opportunities

Discover 10 emerging ClimateTech markets under €1 billion with high ESG and economic potential. Early-mover opportunities in CO₂ tracking, green hydrogen, and more.

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Degrowth vs Green Growth: Strategic Choices for Sustainable SMEs

Explore how German SMEs can balance Degrowth and Green Growth strategies to achieve sustainable success and meet ecological and economic goals.

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ESG: The Key to Long-Term Business Success and Sustainable Growth

Discover how ESG strategies boost financial performance, ensure compliance, and drive sustainable growth for German companies in a changing market.

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EuroStack: Europe's Path to Digital Sovereignty, Sustainability, and Regulatory Compliance

Discover how EuroStack strengthens Europe's digital sovereignty, supports sustainability goals, and ensures compliance with EU regulations like CSRD and EU Taxonomy.

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