Sierra Space

Sierra Space is a defense technology company headquartered in Colorado that builds space systems for U.S. national security, civil space customers, and global allies. Its work spans satellite platforms, critical space subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, inflatable space structures, and broader space infrastructure. The company describes more than three decades of heritage and flight-proven success across these programs.

Two flagship programs anchor the portfolio. Dream Chaser is a reusable winged commercial spaceplane, described by the company as the world's only winged commercial spaceplane - a lifting-body vehicle class that trades the simplicity of capsule reentry for cross-range capability and runway landing, with the guidance, navigation, aerodynamic modeling, and thermal protection work that entails. LIFE Habitat is a large-scale inflatable structure intended for commercial space stations, where soft-goods pressure vessels, structural restraint layers, and deployment mechanics replace the rigid-panel construction used in conventional modules.

Beyond these programs, Sierra Space delivers satellite platforms and critical subsystems for national security and civil space missions, develops propulsion systems for space and defense applications, and works on hypersonic technologies supporting national security missions. The engineering surface spans hardware and flight software integration across vehicle, subsystem, and infrastructure levels - from propulsion and structures to the avionics and control logic that operate them in environments where verification is done on the vehicle, not in a simulator.

The company's stated orientation is toward deterrence and national security missions, with an emphasis on flight-proven reliability rather than unqualified hardware. Customers include U.S. National Security and Civil organizations and allied nations.