Base, founded in 2023, raised a $1 billion Series C in 2025, giving it a $4 billion valuation. The company has raised more than $1.3 billion to date from investors including a16z and Valor Equity Partners. Base provides home battery systems that enable backup power, energy management, and renewable energy integration for residential customers. With advanced technology and scalable production, the company delivers high capacity, safe, and reliable home energy solutions. Base is positioned to expand nationally and lead innovation in home energy storage.