Sierra Space Closes $550 Million in Series C Round, with a Valuation of $8 Billion

Increases total capital investments since 2021 to $2 billion+ Accelerates ability to deliver disruptive and innovative solutions to national security customers through production capacity in place today Round led by LuminArx Capital Management with participation from existing investors LOUISVILLE, Colo. — March 5, 2026 – Sierra Space Corporation, an industry-leading defense-tech space company delivering solutions… Continue Reading Sierra Space Closes $550 Million in Series C Round, with a Valuation of $8 Billion The post Sierra Space Closes $550 Million in Series C Round, with a Valuation of $