Portal Space Systems

Bothell, WA · Founded 2021 · Privately Held (backing)

Provider of space maneuverability services intended to empower the next generation of space operators to maintain space superiority. Portal Space Systems is based in Bothell, WA and was founded in 2021. It is valued at about $217 million as of Oct 2026, set by institutional fund marks, down 13% since its later-stage round in Mar 2026. It has raised $80 million across 1 recorded round; the latest was a $61.5 million later-stage round in Mar 2026.

PMV mark · valuation

$217.5M

Oct 2026

Since last round

-13%

Mar 2026

Total raised

$80.0M

Last round

Later Stage VC

Mar 2026

Leadership

Jeffery Thornburg
Chief Executive Officer & Chief Technology Officer
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Who runs Portal Space Systems

4 people are listed on the Portal Space Systems team: 1 executive and 3 board members, including Jeffery Thornburg (Chief Executive Officer). 4 of them have a verified direct contact on file.

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