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SpaceFUNDING · · 2 OUTLETS

CesiumAstro Secures $730 Million in Janus Henderson-Led Series D at a Valuation Above $4.5 Billion; Unveils Synchronicity Satellite Constellation Following Fully Successful Element-1 Mission

CesiumAstro Inc., a global leader in space and defense communications systems and satellites, today announced the closing of $730 million in Series D financing, valuing the company at more than […] The post CesiumAstro Secures $730 Million in Janus Henderson-Led Series D at a Valuation Above $4.5 Bi

KEY TAKEAWAYS
  • CesiumAstro raised $730M in a Series D at a $4.5B valuation.
  • Covered by 2 outlets; SpaceNews reported it first.
  • CesiumAstro: founded 2017 · HQ CA, US · stage: Series B.
  • Most recent Form D on file: $270.5M (Jun 2026).
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