US-based firm building Dream Chaser spaceplane and orbital habitats. Sierra Space is a commercial aerospace and space technology company headquartered in Louisville, Colorado, United States. Spun off from Sierra Nevada Corporation in 2021, Sierra Space develops spaceflight hardware and infrastructure, most notably the Dream Chaser spaceplane and LIFE (Large Integrated Flexible Environment) inflatable habitat modules. The Dream Chaser spacecraft has been selected by NASA to provide resupply missions to the International Space Station under the Commercial Resupply Services 2 contract. Additionally, Sierra Space is collaborating with Blue Origin on the Orbital Reef commercial space station project. The company's offerings span transportation, orbital destinations, environmental systems, propulsion, subsystems, and satellite platforms. With approximately 2,000 employees, Sierra Space is a rapidly growing player in the commercial space sector. Recent investments have valued the company highly, positioning it as a major contender in the expanding commercial space economy.