Launcher (VAST subsidiary)

Launcher (a Vast company) is a Hawthorne, California-based rocket engine developer acquired by space habitat company Vast in 2023. Originally founded independently to develop small launch vehicles, Launcher has pivoted to focus on its E-2 rocket engine program — a high-performance LOX/kerosene staged combustion engine designed for sale to small launch vehicle companies.

The E-2 engine development represents a key enabler for the next generation of small launch vehicles, offering staged combustion efficiency (similar to SpaceX's Merlin and RD-180) in a compact package suitable for small satellite launch vehicles. Staged combustion engines achieve significantly higher efficiency than simpler gas-generator designs, making the E-2 attractive for operators seeking maximum performance from a small launch vehicle.

As a Vast subsidiary, Launcher benefits from Vast's resources and backing while maintaining focus on its engine development program. The E-2 is targeting commercial sale to other launch vehicle developers, positioning Launcher as a rocket engine supplier in the growing small launch vehicle market.