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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.

How the 30% Super Depreciation Boosts Hardware Startups in the B2B Sector

Discover how the 30% super depreciation tax incentive helps hardware startups overcome investment barriers and accelerate growth in B2B markets.

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Germany Super-Deduction 2025: Growth Booster Tax Guide

Claim Germany's 30% super-deduction on green tech investments under the 2025 Growth Booster Act. Eligible assets, declining balance method & worked examples.

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30% Super Depreciation: Tax Savings & Green Investment Guide

Unlock tax savings with Germany's 30% super depreciation. Learn how to claim it on green & digital investments, reduce taxable profit & strengthen ESG goals.

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Green SaaS: Building Lightweight Climate Tools with APIs and AI

What a green SaaS tool does, how to build one on environmental APIs and AI without a dev team, and when buying a platform is the smarter call.

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Carbon Stress Testing: A 3-Step Guide to CO₂ Resilience

Learn how carbon stress tests assess CO₂ compliance risk. 3-step guide to build business resilience against rising carbon costs and climate regulations.

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ESG Compensation Models: CO₂ Reduction Bonuses for German Companies

Discover how German companies tie executive bonuses to CO₂ reduction targets, boosting sustainability, compliance, and business success.

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