Aurora Innovation, the stealth startup founded by the former CTO of Alphabet’s self-driving car project, has raised over $3 million in venture capital funding, according to an SEC filing.

Along with CEO Chris Urmson, who left Alphabet last year, the startup also boasts Sterling Anderson, who previously oversaw Tesla’s Autopilot software. The company has also hired several of Uber’s self-driving car engineers in Pittsburgh (many of which Uber lured away from Carnegie Mellon a couple of years ago), as well as engineers who have worked at Tesla, Nvidia, and Google. Many of them self-identify on LinkedIn as working for “Stealthy McStartup.”