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
What is CesiumAstro worth?
$765.0Mlast reported valuation · Oct 2026

CesiumAstro's last reported valuation, Jul 2024. Nothing priced has surfaced since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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CesiumAstro funding history

7 rounds
DateRoundRaisedPost-money
Jul 2025Later Stage VC$270.5M▮
Jan 2024Early Stage VC$30.0M▮
Jan 2023Seed Round$2.1M▮
Feb 2022Later Stage VC$60.0M▮
Oct 2020Early Stage VC$15.0M▮
Jan 2019Early Stage VC$8.5M▮
+ 1 earlier rounds · a free account shows the full history
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CesiumAstro valuation

CesiumAstro's last reported valuation was $765 million in Jul 2024. No priced round, secondary trade or fund mark has surfaced since.

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).

How CesiumAstro's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For CesiumAstro, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by last reported valuation. Question about this number? Full methodology →

Frequently asked about CesiumAstro

What is CesiumAstro worth?
CesiumAstro is valued at $765.0M as of Oct 2026. CesiumAstro's last reported valuation, Jul 2024. Nothing priced has surfaced since.
How much has CesiumAstro raised?
CesiumAstro has raised $626.2M in total funding across 7 recorded rounds.
When did CesiumAstro last raise?
CesiumAstro last raised in Jul 2025 (Later Stage VC), raising $270.5M.