C3 AI, founded by Thomas Siebel and Patricia House, has raised $481M across late-stage rounds including Series F and G financings. The Redwood City–based company provides an enterprise AI platform and prebuilt applications for energy, manufacturing, finance, and government. Funding supported platform development, vertical app creation, cloud partnerships, and enterprise go-to-market expansion. C3 AI helps organizations accelerate large-scale AI deployments and optimize operational outcomes. Key investors include TPG, Breyer Capital, and Sutter Hill Ventures.