Sierra Space Lands $550M to Deepen National Security Focus

Sierra Space has raised $550 million in new equity financing, led by LuminArx Capital Management, valuing the company at $8 billion post-money as it accelerates its push into national security space programs.

The Colorado-based firm said the capital will support expanded production capacity and development of next-generation technologies aimed at serving defense and intelligence customers.

“Since 2021, Sierra Space has undergone a strategic transformation, deploying trusted and responsive solutions to more closely align with the needs of its national security customers,” said Fatih Ozmen, board chair of Sierra Space.

The round included participation from existing investors such as General Atlantic, Coatue, Moore Strategic Ventures, and Andalusian Private Capital.

Sierra Space brings more than 30 years of spaceflight heritage and has supported over 500 missions to date. In recent years, the company has secured several major government contracts, including a $450 million award to build more than four satellites for a national security customer and a Space Development Agency (SDA) Tranche 2 Tracking Layer contract with a potential value of up to $740 million to develop 18 missile warning, tracking, and fire-control satellites.

The company has also continued expanding its industrial base. Last year, Sierra Space opened a new power station manufacturing facility dedicated to producing high-rate solar arrays for satellite missions.

Operational milestones in 2025 included completing Critical Design Review for two national security satellite programs and finishing key manufacturing and assembly stages for the Dream Chaser spaceplane, which is expected to conduct a demonstration flight in late 2026.

Moelis & Company LLC acted as exclusive placement agent to Sierra Space on this Series C transaction.

Pictured: Stacked Satellites for SDA Tranche 2 Program