CesiumAstro secures $730 million to deploy AI-enabled satellite constellation

CesiumAstro, a communications technology developer based in Austin, Texas, has secured $730 million in Series D funding at a valuation exceeding $4.5 billion. The financing includes $630 million in equity led by Janus Henderson and $100 million in debt financing provided by J.P. Morgan and the Export-Import Bank of the United States.

The capital will support the company’s strategic transition from a communications payload supplier to a commercial constellation operator. Specifically, the funds will drive the development of Synchronicity, a planned 737-satellite constellation designed for commercial, sovereign, and defense users. The network will utilize Ku-, Ka-, and V-band spectrum and integrate onboard artificial intelligence to dynamically route beams and allocate bandwidth in real time.

In addition to constellation deployment, the investment will fund the expansion of domestic manufacturing capacity, including a phased-array manufacturing complex in Texas, and the development of next-generation spacecraft featuring edge computing capabilities.