PsiQuantum key facts
as of Oct 2026- Operator of a quantum computing company intended to build and deploy functional quantum computers.
- PsiQuantum is valued at approximately $4.8B (~$27/share on the secondary market) as of Oct 2026, down 31% since its Series E, Sep 2025, per PrivateMarketView’s mark.
- It has raised $1.7B across 9 recorded rounds; the latest was Series E ($1.0B) in Sep 2025.
- Notable investors include Metaplanet Holdings, Founders Fund, Nvidia, Redpoint Ventures, MicroVentures — 58 tracked in total.
- 1 institutional filer reports fund marks on PsiQuantum across 10 filings.
- PrivateMarketView tracks 8 recorded secondary trades in PsiQuantum shares.
- 7 investment vehicles were formed to buy PsiQuantum shares in the last 12 months, reporting $8.8M sold to 170 investors, per SEC Form D filings.
- PsiQuantum has filed 1 Form D with the SEC, most recently May 2025 ($22.0M sold to 1 investors).
Down 31% since its Series E, Sep 2025 ($7.0B post-money).
Membership and data by Private Market View
- ·Post-money valuations for 5 rounds
- ·The complete investor list: 58 names
- ·Watch PsiQuantum: the Monday email on marks, rounds and moves
Secondary market
monthly marks · 46 months · Jan 2023 – Oct 2026Membership and data by Private Market View
PsiQuantum secondary trades
8 on record · Jun 2025 – May 20268 trades between Jun 2025 and May 2026. Exact dates, prices and structures are available to Pro members.
Membership and data by Private Market View
Institutional fund marks on PsiQuantum
1 filers · latest May 20261 SEC-registered fund reported 10 fair-value marks on PsiQuantum between May 2025 and May 2026. Filer-level marks and implied $/share are available to Pro members.
Membership and data by Private Market View
PsiQuantum funding rounds
9 roundsVehicles formed to buy PsiQuantum shares
secondary demand · SEC Form D filingsIn the last 12 months, 7 investment vehicles were formed to buy PsiQuantum shares, reporting $8.8M sold to 170 investors across 7 sponsors. Most recent filing Apr 2026.
Membership and data by Private Market View
Who backs PsiQuantum
58+Membership and data by Private Market View
PsiQuantum valuation
PsiQuantum is valued at approximately $4.8 billion as of Oct 2026. The figure is set by secondary market price. The secondary market quotes about $27 per share. The reference point is its Series E in Sep 2025, at a $7 billion post-money valuation; the current figure is down 31% since.
PsiQuantum ranks 37th by valuation and 26th by capital raised among the private companies PrivateMarketView tracks.
How much has PsiQuantum raised?
PsiQuantum has raised $1.7 billion across 9 recorded rounds since 2015. The largest was a $520,000 private secondary transaction in Mar 2022; the most recent was a $1 billion Series E in Sep 2025. 5 of the rounds disclosed a post-money valuation.
PsiQuantum has filed 1 Form D with the SEC, most recently in May 2025 ($22 million sold to 1 investor).
PsiQuantum secondary market activity
8 secondary trades in PsiQuantum shares are on record, between Jun 2025 and May 2026. The busiest recent months were Dec 2025 (4 prints). Exact dates, prices and structures are available to Pro members.
A monthly secondary-market price series for PsiQuantum runs from Jan 2023 to Oct 2026 (46 months).
Institutional holders and vehicles
1 SEC-registered fund reported 10 fair-value marks on PsiQuantum between May 2025 and May 2026, in their N-PORT filings. The latest fund marks sit apart from the current valuation. Filer-level marks and implied per-share values are available to Pro members.
In the last 12 months, 7 investment vehicles were formed to buy PsiQuantum shares, reporting $8.8 million sold to 170 investors across 7 sponsors, per SEC Form D filings (most recent Apr 2026).
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.
Comparable companies
Comparable computers, parts and peripherals names by valuation on PrivateMarketView: Oxide Computer ($1.6 billion), Quantum Machines ($700 million) and MatX ($362 million).
About PsiQuantum
Operator of a quantum computing company intended to build and deploy functional quantum computers. The company focuses on creating large-scale, fault-tolerant systems that leverage existing infrastructure, enabling researchers and industries to tackle complex problems and drive advancements in various fields through enhanced computational capabilities.
- Industry
- Computers, Parts and Peripherals
- Sector
- Hardware
- HQ
- Palo Alto, CA, United States
- Founded
- 2015
- Employees
- 634
- Website
- psiquantum.com/
- Ownership
- Privately Held (backing)
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