Ostrom

About

Ostrom is a private headquartered in Berlin, Germany with approximately 50-200 employees specializing in Solar, Wind.

Founded in January 2021 by Matthias Martensen and Karl Villanueva, Ostrom is driving Germany's green energy transition by making renewable electricity accessible and inclusive. The company operates a fully digital energy management platform enabling consumers to switch, track, and reduce electricity consumption. Ostrom offers two main tariffs: SimplyFair, a transparent monthly variable rate with no markup beyond a 6 EUR monthly fee, and SimplyDynamic, which provides hourly dynamic pricing for customers with smart meters. Both tariffs feature month-to-month cancellation and 100% TÜV-certified renewable energy. The platform integrates with smart home devices, electric vehicle chargers, heat pumps, and battery systems through its app. Ostrom is a certified B Corporation committed to social and environmental impact and operates as the founding member of the Smart Meter Initiative. The company claims it will offset 489,000 tonnes of CO2 annually by 2025 and serves over 100,000 households across Germany.

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Sustainability