What is Base?
Base operates at the intersection of consumer technology and utility-scale energy management. As a licensed retail electricity provider, the company distinguishes itself by deploying residential battery systems that serve a dual purpose: providing homeowners with reliable backup power during outages and aggregating distributed storage capacity to stabilize the electric grid. This model not only empowers consumers to reduce their electricity costs but also provides essential grid services that enhance overall reliability. By leveraging advanced software to manage these distributed assets, Base is transforming the traditional utility relationship into a dynamic, technology-driven partnership that supports the broader decarbonization of the energy sector.
How much funding has Base raised?
Base has raised a total of $2.3B across 5 funding rounds:
Seed
$7.8M
Series A
$68M
Series B
$200M
Series C
$1B
Series D
$1B
Seed (2023): $7.8M, investors not publicly disclosed
Series A (2024): $68M, investors not publicly disclosed
Series B (2025): $200M supported by Addition Financial, Thrive Capital, Andreessen Horowitz, Altimeter Capital, Lightspeed Venture Partners, Terrain, and Valor Equity Partners
Series C (2025): $1B featuring Altimeter Capital, StepStone Group, Valor Equity Partners, Addition, Positive Sum, Lightspeed Venture Partners, Andreessen Horowitz, Thrive Capital, Spark Capital, CapitalG, Elad Gil, Lowercarbon Capital, Glade Brook Capital, Ribbit Capital, and BOND
Series D (2026): $1B backed by Altimeter Capital, Lightspeed Venture Partners, Sands Capital, Energy Impact Partners, Andreessen Horowitz, Thrive Capital, Valor Equity Partners, Ribbit, Coatue, Addition, CapitalG Management, JPMorgan Chase, and Trust Ventures
Key Investors in Base
Altimeter Capital
Altimeter Capital is an investment firm that partners with technology companies from early growth through public markets, managing concentrated, long-term portfolios.
Lightspeed Venture Partners
Lightspeed Venture Partners is a global multistage venture capital firm that invests in early and growth-stage technology companies across sectors such as enterprise software, consumer, fintech, and infrastructure.
Andreessen Horowitz
Andreessen Horowitz is a prominent private American venture capital firm that invests in both early-stage start-ups and established growth companies.
What's next for Base?
With the successful closure of this major strategic investment, Base is well-positioned to accelerate its market penetration and scale its operational footprint. The company is expected to focus on expanding its residential battery installation network and enhancing its proprietary grid-balancing software. As the demand for decentralized energy solutions continues to rise, Base's ability to bridge the gap between individual home energy needs and utility-scale grid requirements will be pivotal. Future growth will likely involve deepening partnerships with energy stakeholders and further optimizing its retail electricity offerings to capture a larger share of the evolving energy market.
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