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Sierra Space

Sierra Space is a Colorado-headquartered Defense Tech space company delivering satellite platforms, subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and orbital infrastructure.

Last updated September 15, 2026

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Overview

Sierra Space describes itself as a mission-proven Defense Tech space company headquartered in Colorado, delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for critical missions. It states it has more than three decades of heritage and a record of flight-proven success in space, and that it is trusted by U.S. National Security, Civil customers, and global allies. Its stated role is to create the foundational infrastructure and ecosystem enabling the future commercial space economy, and it frames its work as defining a new era of Space Defense.

History

Sierra Space states it has more than three decades of heritage and a record of flight-proven success in space. It describes itself as headquartered in Colorado and as a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation's most critical missions. The company frames its role around the transition from human space exploration to human space commercialization, which it calls the Orbital Age.

Products and positioning

A mission-proven Defense Tech space company defining the new era of Space Defense, serving U.S. National Security, Civil customers, and global allies.

  • Dream Chaser® spaceplanes

    A fleet of spaceplanes described by Sierra Space as the only commercial runway capable spaceplane.

  • Orbital Reef

    Listed under Infrastructure as opening the next chapter of human space exploration and development.

  • Satellite Missions

    Developing a next generation product line of small, high performance, affordable satellites for on orbit servicing missions.

  • Electrical Power Systems

    Surface Mount Technology (SMT) developed to significantly reduce the lead-time of space power, offering fully assembled and tested solar arrays.

  • Hypersonics & Engines

    Patented rocket propulsion technologies, state-of-the-art testing and analysis services.

  • Environmental Systems

    Developing environmental systems that enable life-support in microgravity conditions.

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