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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.

EU Taxonomy: Practical Checklist and Guide for Companies

Use this practical EU Taxonomy checklist to assess activities, avoid greenwashing risks and align finance, legal and sustainability.

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Carbon Accounting Challenges for Startups: Where the Data Breaks and How to Fix It

Where carbon accounting breaks down in young companies: manual data, missing supplier figures, tool limits, no owner. And the 90-day fix that holds up.

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7 Key ESG Metrics Every Company Should Track (2026 Checklist)

What ESG metrics are, a full list mapped to ESRS, GRI, SASB and IFRS S2, and the seven indicators that matter, with formulas, units and denominators.

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How to Create a Comprehensive Sustainability Report: Key Steps and Standards

What a sustainability statement must contain under ESRS, which standard applies to your company, and the six steps from scoping to sign-off.

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How to Position Your (Climate) Tech Startup for Article 9 VC Funds

Position your climate tech startup for Article 9 SFDR funds: expert tips on impact metrics, DNSH compliance, and investor-grade ESG documentation.

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4 Types of Climate Startups That Will Struggle to Raise in 2025

Discover the climate startup types that will struggle to secure VC funding in 2025 and explore alternative strategies for success.

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