CesiumAstro

Austin, TX · Founded 2017 · Privately Held (backing)

Developer of a space communication system designed to address a diverse range of commercial and defense applications. CesiumAstro is based in Austin, TX and was founded in 2017. Its last reported valuation was $765 million in Jul 2024. It has raised $626 million across 7 recorded rounds; the latest was a $271 million later-stage round in Jul 2025.

Last reported valuation
$765.0M
Oct 2026
Priced at
—
Total raised
$626.2M
Last round
Later Stage VC
Jul 2025
How much has CesiumAstro raised?
$626.2Macross 7 recorded rounds · Jan 2019 – Jul 2025

Most recently, CesiumAstro raised $270.5M in its Later Stage VC (Jul 2025).

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CesiumAstro round by round

7 rounds
Jul 2025Later Stage VC$270.5MSEC filing▮
37 investors participated
Jan 2024Early Stage VC$30.0MSEC filing▮
2 investors participated
Jan 2023Seed Round$2.1MSEC filing▮
5 investors participated
Feb 2022Later Stage VC$60.0MSEC filing▮
12 investors participated
Oct 2020Early Stage VC$15.0MSEC filing▮
10 investors participated
Jan 2019Early Stage VC$8.5MSEC filing▮
4 investors participated
+ 1 earlier rounds · a free account shows the full history

How much has CesiumAstro raised?

CesiumAstro has raised $626 million across 7 recorded rounds since 2017. The largest was an $8.5 million early-stage round in Jan 2019; the most recent was a $271 million later-stage round in Jul 2025.

CesiumAstro has filed 8 Form Ds with the SEC since 2017, most recently in Feb 2024 ($30 million sold to 2 investors).

CesiumAstro investors

26 investors are on record for CesiumAstro, including Alumni Ventures, United States Department of War, Kleiner Perkins and EDBI. By type, the record holds 6 venture capital firms. The later-stage round in Jul 2025 drew 37 investors.

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Frequently asked about CesiumAstro

How much has CesiumAstro raised?
CesiumAstro has raised $626.2M in total across 7 recorded funding rounds.
When was CesiumAstro's last funding round?
CesiumAstro's most recent recorded round was Later Stage VC in Jul 2025, raising $270.5M.