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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.

SBTi Certification: 6-Step Guide for Climate Targets

Master SBTi certification in 6 steps. Learn how to set science-based targets, avoid common mistakes, and align with Paris Agreement goals.

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AI Token Pricing 2025: Cost Trends & Sustainability Impact

AI token prices per million: what a GPT-4-class model cost in 2023 versus today, five controls that cut the bill, and the energy behind cheaper tokens.

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Build, Buy, or Automate? Choosing the Right AI Strategy for Sustainable ESG Success

Explore how to choose between building, buying, or automating AI solutions to efficiently achieve your sustainability and ESG goals.

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The Economic Benefits of Climate Preparedness: Why Investing in Adaptation Pays Off

What climate adaptation actually returns: European loss data, the adaptation market and financing gap, German funding rates up to 60 %, and how to build the business case for a ...

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Impact Carry in VC: Link Carried Interest to ESG Outcomes

Impact Carry links VC carried interest to financial returns and measurable ESG targets. Discover how funds align compensation with impact.

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Impact Investing in Civic Tech: ESG Opportunities 2024

Discover how impact investments in civic tech, media, and democracy generate returns while solving societal challenges. Real case studies and frameworks.

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