Radian Aerospace

Defense and Space ManufacturingWashington, United States11-50 Employees

Radian Aerospace is a defense and space manufacturing company based in Seattle, Washington. It is developing a fully reusable spaceplane with horizontal takeoff and landing, designed as a single-stage-to-orbit vehicle that can deliver people and cargo to low Earth orbit and other terrestrial destinations using aircraft-like operations. The company is relatively small, reflecting a specialized focus within the aerospace sector. Its market focus includes customers seeking frequent, flexible access to space and related destinations. In March 2025 the company publicly introduced the Radian One spaceplane, marking a concrete milestone in its product development.

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