Sierra Space Corp

Sierra Space Corp, an aerospace technology manufacturer headquartered in Louisville, Colorado, competes as a prime contractor (64% of recent awards) and subcontractor (36%) across NASA human spaceflight programs, Air Force space development initiatives, and Department of Defense missile defense efforts, with combined prime contract potential value exceeding $22.2 billion and no SBA set-aside designations across its federal footprint. The company operates facilities in Superior, Westminster, Colorado, and Broomfield, Colorado, competing full-and-open across research and development, guided missile and space vehicle manufacturing, and space systems engineering NAICS categories.

Sierra Space Corp's customer concentration anchors overwhelmingly with NASA Johnson Space Center, which accounts for 16 awards worth $18.74 billion in combined potential value—84% of the company's total federal potential value. The Air Force Space Command Space and Missile Systems Center sits second with $1.84 billion across two awards (one a newly awarded $1.843 billion multiple-award IDIQ for space domain awareness technology development through April 2036), followed by the Office of the Secretary of Defense with a $798.2 million Other Transaction Agreement for the Accelerated Missile Defense Tranche 3 (AMDT3) Missile Warning/Missile Tracking program awarded July 10, 2026, with completion scheduled for September 8, 2034. The Department of the Air Force contributes $743.6 million across three awards, including a $742.373 million OTA for Tranche 2 Tracking Layer (January 12, 2024, completion October 1, 2032) and a $22.6 million Air Force Research Laboratory SBIR Phase III contract for VR35K-A Advanced Upper Stage Engine maturation (June 9, 2023, completion November 3, 2025). NASA Marshall Space Flight Center contributes $34.5 million across 11 awards spanning lunar logistics studies, liquid hydrogen valve development, and life support systems.

Sierra Space Corp's capability portfolio centers on advanced space systems and components for human spaceflight, lunar exploration, propulsion technologies, and missile warning/tracking. Representative prime work includes the $798.24 million AMDT3 OTA for missile tracking capability development under the Middle Tier Rapid Prototyping acquisition pathway; a $13.2 million cost-plus-fixed-fee contract from NASA Johnson Space Center (December 18, 2025, completion September 30, 2027) for the Advanced Spacesuit Regulator, a next-generation oxygen regulator teaming with American Sensing Inc. and Unibap Space Solutions for pressure sensors and aerospace computing; a $4.2 million firm fixed-price contract from NASA Marshall Space Flight Center (April 30, 2025, completion September 30, 2026) for lunar logistics and mobility studies under NextSTEP-2 Appendix R; and a $3.031 million contract from NASA Marshall (October 25, 2024, completion October 25, 2026) for design, manufacturing, and development testing of low leakage liquid hydrogen valve concepts, subcontracting to Hooper Corporation for vacuum chamber manufacturing and CDA Intercorp for hardware components. On ISS research infrastructure, Sierra Space holds a $9.9 million single-award Indefinite Delivery Contract with NASA Johnson Space Center (awarded February 1, 2023, completion January 31, 2028) providing mass measurement devices and water capture devices; recent delivery orders under this IDC include $841,605 for Advanced Plant Habitat sustaining engineering, $404,381 for four-week flight experimentation efforts, $171,304 for space-hardened multi-cloud edge computing platform implementation (ENIAC Cloud), and $152,889 for baseline repairs to Environmental Control System hardware. SCI-reported invoicing reached $9.6 million in FY2025 across 22.6 FTEs on federal services contracts captured in SCI, with median government-paid rates around $201/hr and senior labor pricing through $432/hr; the company performs substantially all work in-house (0% average sub-hours share across SCI-reportable prime contracts).

Sierra Space Corp serves as a subcontractor on large aerospace integration and human spaceflight programs. The company supplies hardware and engineering services to Boeing on the Commercial Crew Program Commercial Crew Transportation Capability (CCTCAP) contract (multiple sub-awards through February 2025 supporting ISS crew transportation capability certification and post-certification missions); delivers hardware components and mission support to Johns Hopkins University Applied Physics Laboratory on the Dragonfly Extended Phase B mission (multiple awards through July 2026); supplies solar power array panels and spacecraft integration support to Southwest Research Institute on the QuickSounder spacecraft development; and provides actuators and components to L3Harris Technologies on the Cross Track Infrared Sounder (CRIS) instrument program. Sub work spans spacecraft hardware fabrication, payload integration, life support system components, and sensor systems for NASA exploration missions and defense space applications.

Activity grew substantially from 2 awards in 2022 to 19 in 2024, declining to 13 in 2025 and 8 in 2026 year-to-date; this trajectory reflects the concentration of near-term revenue in three mega-awards (AMDT3, Tranche 2 Tracking Layer, and the newly awarded SHIELD and SMC IDIQ). Within the next twenty-four months, five awards (combined potential value $49 million) reach ultimate completion and face recompete exposure, including the VR35K-A engine contract (November 2025), the Carbothermal Lunar Regolith Processing System SBIR Phase III (September 2025), and several ISS-related delivery orders. The $1.843 billion Space and Missile Systems Center IDIQ (April 8, 2026, completion April 8, 2036) and the $151 billion Missile Defense Agency Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ (December 29, 2025, completion December 28, 2035) represent long-term vehicles enabling task-order competition, with SHIELD's initial task order valued at $500. Sierra Space Corp's prime vehicle portfolio concentrates on single-award and multiple-award IDIQs across NASA Johnson and Marshall Space Flight Centers and recently awarded space domain awareness and missile defense IDIQ vehicles; teaming on ISS and lunar programs routes through larger aerospace integration contractors rather than direct Sierra Space leadership.