Portal Space Systems
Develops Supernova, a highly maneuverable spacecraft using solar thermal propulsion to move between LEO, MEO and GEO for space domain awareness and servicing.
Falcon 9 launches the GPS III-SV09 mission from Cape Canaveral Space Force Station, January 2026. Photo: U.S. Space Force photo by Gwendolyn Kurzen, Public domain (U.S. government work).
Funding history
| Date | Round | Amount |
|---|---|---|
| Apr 2026 | Series A | $50M |
Why it matters
$45M Space Force STRATFI (Dec 2025); Washington State grant to expand manufacturing in Bothell.
Is Portal Space Systems publicly traded?
Portal Space Systems is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.
Information only, not investment advice.
Some figures rest on a single report. Treat them as indicative.Last verified November 14, 2026
Portal Space Systems: key questions
What does Portal Space Systems do?
Develops Supernova, a highly maneuverable spacecraft using solar thermal propulsion to move between LEO, MEO and GEO for space domain awareness and servicing.
What does Portal Space Systems make?
Products named by Portal Space Systems include Supernova.
Where is Portal Space Systems based?
Portal Space Systems is headquartered in Bothell, Washington. It was founded in 2021.
What is Portal Space Systems' valuation?
Portal Space Systems was valued at $250M as of Apr 2026, after a $50M Series A (Apr 2026).
How much funding has Portal Space Systems raised?
Total funding is ~$70M, based on announced and reported rounds. Latest round: Series A, $50M, Apr 2026.
Who are Portal Space Systems' investors?
Notable investors include AlleyCorp, Mach33, FUSE.
Is Portal Space Systems publicly traded?
Portal Space Systems is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.
Can you buy Portal Space Systems stock?
Not on a public exchange: Portal Space Systems is a private company. Shares of private companies change hands only in private transactions open to accredited investors, when the company allows it. This is not investment advice.
Sources
Figures come from company announcements, government sources and press reports. Spot an error? Send a correction. Nothing here is investment advice.
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