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CesiumAstro, a Texas-based startup founded in 2017, specializes in phased array technology for space communications. The company has grown to over 300 employees and operates in the US, UK, Germany, and Japan.

CEO Shey Sabripour emphasizes the need for scalable and agile space systems, addressing delays and costs associated with traditional space communications hardware. CesiumAstro designs and manufactures active phased array payloads that can electronically steer radio waves, achieving affordability through commercial off-the-shelf components and in-house manufacturing.

Their Vireo Ka-band communications system supports multiple RF beams and real-time beam steering. Current clients include US government agencies like the Department of Defense and NASA, focusing on projects related to LEO networks and lunar infrastructure. CesiumAstro aims to expand its manufacturing capacity and meet the growing demand for secure, low-latency space-based infrastructure.