Voltus has raised a total of $66.1 million over three funding rounds. The company began with a $10.1 million Series A investment in October 2017, led by Prelude Ventures, to develop its energy products. This was followed by a $25 million Series B investment in October 2020 from NGP Energy Technology Partners, aimed at expanding the market presence. Most recently, Voltus secured $31 million in Series C funding in May 2021 from Activate Capital Partners to monetize additional distributed energy resources and expand into sectors such as electric vehicles and solar-plus-storage.