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Sierra Space

SS
Space & AerospaceTravel & HospitalityLogistics & Supply ChainDefense & MilitaryLouisvilleFounded 2021Website
#102 by valuationHype45

Sierra Space develops aerospace systems and space infrastructure used for transportation, habitation, and operations in orbit. The company designs and manufactures spacecraft, satellite systems, propulsion technologies, and spaceflight components used in commercial, civil, and defense missions. Its portfolio includes the Dream Chaser spaceplane, a reusable spacecraft designed to transport cargo and other payloads to and from space while landing on conventional runways. The company also develops orbital habitation technologies such as the Large Integrated Flexible Environment (LIFE) habitat, an expandable structure designed to support research, manufacturing, and other activities in microgravity. These systems can be deployed as modules for commercial space stations or other orbital platforms. Sierra Space participates in the development of orbital destinations and infrastructure, including collaboration on commercial space station projects that support research, industrial activity, and other operations in low Earth orbit. The organization also produces spacecraft subsystems such as solar power systems, environmental control equipment, propulsion components, and thermal management technologies used in satellites and spacecraft.

Founded by Eren Ozmen (Co-founder; Chairwoman (Chair/President of parent Sierra Nevada Corporation)), Fatih Ozmen (Co-founder; Chair of the Sierra Space board (CEO of parent Sierra Nevada Corporation))

Blended valuation$8B
Valuation history
Weekly blended valuation with priced funding rounds marked on the timeline.
$8.3B
blended valuationfunding round
Nov 1, 2021$4.2BOct 5, 2026
All rounds
3 funding rounds, newest first.
RoundAnnouncedRaisedPost-money
Series CMar 5, 2026$550M$8B
Series BSep 26, 2023$290M$5.3B
Series ANov 19, 2021$1.4B$4.5B
Investors
13 investors across all rounds.
  • CO
    Coatue
  • GA
    General Atlantic
  • MS
    Moore Strategic Ventures
  • BL
    BlackRock
  • LC
    LuminArx Capital Management LP
  • KC
    Kanematsu Corporation
  • AI
    AE Industrial Partners
  • BP
    BlackRock Private Equity Partners
  • AP
    Andalusian Private Capital
  • KC
    Kanematsu Corportation
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Data as of Oct 15, 2026. Valuations are estimates blended from primary and secondary-market signals — not investment advice.