PsiQuantum

Computers, Parts and Peripherals · Palo Alto, CA · Founded 2015 · Privately Held (backing)

Operator of a quantum computing company intended to build and deploy functional quantum computers. PsiQuantum is based in Palo Alto, CA and was founded in 2015. It is valued at about $4.8 billion as of Oct 2026, set by secondary market price, down 31% since its Series E in Sep 2025. It has raised $1.7 billion across 9 recorded rounds; the latest was a $1 billion Series E in Sep 2025.

PMV mark · valuation
$4.8B
Oct 2026
Secondary market · $/share
$27
Total raised
$1.7B
Last round
Series E
Sep 2025
Cap table — not yet on record

PsiQuantum's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.

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The prices on PsiQuantum
  • ·Every dated print: 8 trades with prices and structures
  • ·10 fund marks: filer, period, implied $/share
  • ·The monthly marks chart, 46 months in dollars
  • ·Price per share on 4 rounds
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Frequently asked about PsiQuantum

Where does PsiQuantum's cap table come from?
Share classes are assembled from certificates of incorporation, priced-round filings, and disclosures across PsiQuantum's 9 recorded funding rounds.