Sierra Space

Sierra Space is a defence technology space company headquartered in Louisville, Colorado, that designs, manufactures and delivers satellites, spacecraft and space subsystems for national security, civil and commercial customers. It cites nearly three decades of experience building satellite systems, components and on-orbit spacecraft, with both classified and unclassified infrastructure. Its chief executive is Dan Jablonsky. The company describes its mission as advancing national security through space innovation under the line "Defending today, defining tomorrow".

Products and programmes

• Dream Chaser spaceplanes, described as the only commercial runway-capable spaceplane, with national security and commercial payload contracts secured for the inaugural flight
• The Eclipse satellite family, including the Horizon spacecraft used for the Space Development Agency's Tranche 2 Tracking Layer programme, for which all 18 space vehicle structures have been built
• A next-generation line of small, affordable satellites for on-orbit servicing missions
• Space power systems, including surface mount technology solar arrays supplied fully assembled and tested, with turnkey power system analysis and testing
• Patented rocket engines and propulsion systems with testing and analysis services, pointing systems and motion control, and environmental control and life support systems for microgravity
• Hypersonic technologies, orbital infrastructure and on-orbit biomanufacturing for production laboratories

Recent news

In July 2026 the Space Development Agency awarded Sierra Space a firm fixed price Other Transaction Agreement worth USD 798 million to deliver 18 additional AMDT3 tracking layer satellites based on the Horizon spacecraft, strengthening the Proliferated Warfighter Space Architecture in support of Golden Dome for America. The company also announced the appointment of Jeff Schrader as chief financial officer, Jill Pomeroy as senior vice president of government relations, and the election of Warren Jenson and retired Lieutenant General John E. Shaw to its board of directors.

Shows

Sierra Space appears in the exhibitor lists of Silicon Valley Space Week 2026, the Small Satellite Conference 2027 and the IEEE Aerospace Conference 2027.

Contact

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