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

Who backs PsiQuantum?

58 investors
InvestorType
Metaplanet HoldingsVenture capital
Founders FundVenture capital
Nvidia—
Redpoint VenturesVenture capital
MicroVenturesVenture capital
AtomicoAsset manager
Ribbit CapitalVenture capital
BlackRockOther
M12Other
Sound VenturesVenture capital
+ 48 more investors · a free account shows the complete list
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PsiQuantum investors

58 investors are on record for PsiQuantum, including Metaplanet Holdings, Founders Fund, Nvidia and Redpoint Ventures. By type, the record holds 20 venture capital firms, 5 asset managers and 4 growth equity firms. The Series E in Sep 2025 drew 10 investors.

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