CesiumAstro is a US-based company founded in 2017 that specializes in developing advanced communication systems for space and airborne platforms, including active phased array antennas and software-defined radios. They provide full-stack, multi-mission hardware and software products that enable high-throughput connectivity and data transmission. CesiumAstro partners with organizations like NASA, the Space Development Agency (SDA), the U.S. Air Force, Axiom Space, and commercial entities to deliver next-generation connectivity solutions. Their key products include the Nightingale, Vireo, Skylark, and Element, and they focus on innovations in satellite communications, lunar communications, and inter-satellite links.
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A $200 million portion of CesiumAstro’s funding was provided by the Export-Import Bank of the United States under the Make More in America initiative.
CesiumAstro’s payload-first satellite architecture uses modular, software-defined hardware to provide flexible connectivity and sensing capabilities.
CesiumAstro secured $470 million in growth capital.
CesiumAstro is accelerating development of a manufacturing facility to mass-produce its payload-first satellite architecture.
CesiumAstro is building a new 270,000-square-foot campus near Austin, Texas to consolidate engineering, electronics manufacturing, and satellite and critical technology manufacturing.
CesiumAstro is focusing on missions that benefit from phased array technology, including specific frequency support, beam configurations, and anti-jam capabilities.
CesiumAstro plans to build a new 270,000-square-foot headquarters as part of its scale-up following the Series C funding round.
CesiumAstro intends to expand manufacturing capacity and accelerate deployment of its software-defined, AI-enabled space communications platforms worldwide using the Series C proceeds.
CesiumAstro raised $470 million in a Series C growth capital round that includes $270 million in equity led by Trousdale Ventures.
CesiumAstro will support scaled production of its fully integrated Element LEO satellite and growth of global technical and program teams with the funding proceeds.
Airbus assembled a consortium for the SpaceRAN demonstrator that includes Aalyria, AccelerComm, CesiumAstro, Deutsche Telekom, Eutelsat, the Industrial Technology Research Institute (ITRI), Keysight Technologies, Onati, Radisys, Sener, and ST Engineering iDirect.
CesiumAstro is a supplier to Rocket Lab for its Space Development Agency contract.
The new facility will double CesiumAstro's current production capacity.
CesiumAstro is planning to expand its presence and manufacturing capability in Texas with this round of financing.
The production of CesiumAstro's software-defined active electronically steered arrays must meet aggressive delivery timelines for the Proliferated Warfighter Space Architecture.
CesiumAstro secured $200 million in government financing to support its national security and defense clientele.
CesiumAstro develops systems including multi-beam active phased array payloads and components such as software-defined radios.
CesiumAstro successfully demonstrated its multi-beam communication technology during its Comm-1 mission in 2024.
CesiumAstro Inc. secured a $200 million financing package to expand its domestic manufacturing operations.
CesiumAstro secured $200 million in financing from the Export-Import Bank of the United States (EXIM) to expand its manufacturing capability in Texas.