Sierra Space Closes $550M Series C at $8B Valuation — Defense Pivot Complete
82 FOMOSierra Space raised $550M in Series C equity on March 5, 2026, led by LuminArx Capital Management with participation from General Atlantic, Coatue, Moore Strategic Ventures, and Andalusian Private Capital, valuing the company at $8 billion post-money. The round arrives as Sierra Space executes a $740M SDA Tranche 2 contract (18 missile-warning satellites, three months ahead of schedule) and a classified $450M national security award. CEO Dan Jablonsky, who replaced founder Fatih Ozmen in February 2026, is tasked with transitioning the company from development-heavy to high-rate manufacturing. Dream Chaser demo flight is now targeted for late 2026 as a free-flight uncrewed demonstration rather than ISS resupply.
Why it matters
Sierra Space has completed its identity change from commercial space station aspirant to national security satellite prime — the Orbital Reef future is effectively parked. With $2B+ raised since 2021 and a solar array manufacturing facility already online, this is a manufacturing story now, and Dream Chaser is the credibility anchor that keeps commercial optionality open.
The numbers
Details
Funding
- Amount
- $550M
- Valuation
- $8B
- Round
- series c
- Lead investors
- LuminArx Capital Management
- Investors
- LuminArx Capital ManagementGeneral AtlanticCoatueMoore Strategic VenturesAndalusian Private Capital
- Announced
- 2026-03-05
Coverage
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satnews.com ·
Sierra Space Secures $550 Million Series C to Scale Defense-Tech and Dream Chaser OperationsDetailed breakdown of Sierra Space's defense contract portfolio underpinning the raise: $740M SDA Tranche 2 for 18 missile-warning satellites (delivered three months ahead of schedule), a classified $450M national security award, and a completed high-rate solar array manufacturing facility. Dream Chaser manufacturing milestones are done; demo flight is next.
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spacenews.com ·
Sierra Space raises $550 million in Series C fundingSpaceNews reports on the $550M raise led by LuminArx at an $8B valuation. Highlights the strategic pivot from commercial space infrastructure to national security, the appointment of Dan Jablonsky (ex-Maxar CEO) in late February, and the NASA rebaselining of Dream Chaser from ISS resupply to a free-flight demonstration slated for late 2026.
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Sierra Space raised $550M in Series C equity on March 5, 2026, led by LuminArx Capital Management wi