node.energy makes opti.node, software for managing photovoltaic and wind energy projects, based in Frankfurt, Germany.
Founded in 2016 and headquartered in Frankfurt, Germany, node.energy GmbH makes software for operating renewable energy projects, mainly photovoltaic and wind installations. Its opti.node platform handles accounting, energy sales, billing and regulatory compliance, sold on subscriptions to producers and businesses in Germany and other European countries. In March 2025 the company raised EUR 15 million in Series B funding led by DeepTech and Climate Fund, with participation from BitStone Capital and High-Tech Gruenderfonds, at a valuation of approximately EUR 60.21 million.
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