Quantinuum key facts
as of Oct 2026- Operator of a technology company intended for developing, commercializing, and applying quantum computing.
- Quantinuum is valued at approximately $10.8B as of Oct 2026, per PrivateMarketView’s mark.
- It has raised $1.2B across 1 recorded rounds; the latest was Later Stage VC ($838.8M) in Aug 2025.
- Notable investors include Korea Investment Partners, Nvidia, QED Investors, NVentures (Santa Clara), Mitsui & Co — 22 tracked in total.
- 1 institutional filer reports fund marks on Quantinuum across 2 filings.
- PrivateMarketView tracks 1 recorded secondary trades in Quantinuum shares.
- Quantinuum has filed 2 Form Ds with the SEC, most recently Nov 2025 ($838.8M sold to 50 investors).
- Status: In IPO Registration.
Nothing comparable since the round — shown at its early-stage round, Nov 2025 ($10.8B post-money).
Membership and data by Private Market View
- ·The complete investor list: 22 names
- ·Watch Quantinuum: the Monday email on marks, rounds and moves
Quantinuum secondary trades
1 on record · Mar 2026 – Mar 20261 trades between Mar 2026 and Mar 2026. Exact dates, prices and structures are available to Pro members.
Membership and data by Private Market View
Institutional fund marks on Quantinuum
1 filers · latest Jul 20261 SEC-registered fund reported 2 fair-value marks on Quantinuum between Jul 2026 and Jul 2026. Filer-level marks and implied $/share are available to Pro members.
Membership and data by Private Market View
Quantinuum funding rounds
1 roundsWho backs Quantinuum
22+Membership and data by Private Market View
Latest analysis
from our researchQuantinuum valuation
Quantinuum is valued at approximately $10.8 billion as of Oct 2026. The figure is set by institutional fund marks. The reference point is its early-stage round in Nov 2025, at a $10.8 billion post-money valuation.
Recent activity
In the last 90 days, Quantinuum's record added 2 institutional fund marks (latest period Jul 2026).
How much has Quantinuum raised?
Quantinuum has raised $1.2 billion in total; 1 of its rounds is on record. The largest on record was an $839 million later-stage round in Aug 2025.
Quantinuum has filed 2 Form Ds with the SEC, most recently in Nov 2025 ($839 million sold to 50 investors).
Quantinuum secondary market activity
1 secondary trade in Quantinuum shares is on record, in Mar 2026. Exact dates, prices and structures are available to Pro members.
Institutional holders and vehicles
1 SEC-registered fund reported 2 fair-value marks on Quantinuum for Jul 2026, in their N-PORT filings. Filer-level marks and implied per-share values are available to Pro members.
Quantinuum investors
22 investors are on record for Quantinuum, including Korea Investment Partners, Nvidia, QED Investors and NVentures (Santa Clara). The later-stage round in Aug 2025 drew 50 investors.
About Quantinuum
Operator of a technology company intended for developing, commercializing, and applying quantum computing. The company offers quantum hardware that delivers scalability and precision through trapped-ion technology and develops toolkits to write, optimize, and execute programs, democratizing access to quantum systems, enabling industry and researchers to achieve breakthroughs, improve operational capabilities, and stay at the forefront of innovation in their respective fields.
- Sector
- Information Technology
- HQ
- Broomfield, CO, United States
- Founded
- 2021
- Employees
- 700
- Website
- quantinuum.com/
- Ownership
- In IPO Registration
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