Quantinuum
PublicQuantinuum is now publicly traded
The data on this page reflects Quantinuum's private-market history up to the point it went public, including its funding rounds, valuation, and investors.
Last Round
Grant
Sep 8, 2026
Total Funding Raised
$3.98B
Company Overview
Quantinuum operates in Quantum Computing and is based in Broomfield, Colorado. It has raised $3.98B.
Quantinuum is a quantum computing company that develops integrated hardware and software platforms to advance scientific and commercial applications in chemistry, cybersecurity, finance, and optimization.
Sector
Quantum Computing
AI Layer
Infrastructure
Quantinuum Comparables
Compare Quantinuum with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| IonQ | 87% | |
| PsiQuantum | 82% | |
| Rigetti Computing | 81% |
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Quantinuum Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Sep 8, 2026 | ||||
| Strategic | Jun 3, 2026 | ||||
| Early Funding | Nov 5, 2025 | ||||
| Early Funding | Sep 4, 2025 | ||||
| VC Round | Jan 16, 2024 | ||||
Corporate Funding | Nov 30, 2021 |
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Key People
Founding team and executive leadership
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Quantinuum Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Jefferies | Strategic |
| Evercore ISI | Strategic |
| Korea Investment Partners | Early Funding |
| Rosenblatt Securities | Strategic |
| Mizuho Securities | Strategic |
| Consensys Mesh | Early Funding |
| Standard Chartered | VC Round |
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Recent news
Latest coverage and updates
- is_developingNov 10, 2026
Quantinuum expands its partnership with RIKEN to develop quantum-AI computing applications and work toward a fault-tolerant quantum computer with Japanese universities and suppliers in Japan on Nov 12th '26.
- launchesNov 10, 2026
Quantinuum and RIKEN complete a significant hardware upgrade to Reimei in Japan, moving the quantum computer to System Model H2 and enabling research into more complex quantum systems.
- is_developingNov 10, 2026
Quantinuum and RIKEN plan to develop a fault-tolerant "Made with Japan" quantum computer, building on their computing architecture to extend Japan's long-term quantum leadership, as announced in Japan on Nov 10th '26.
- attends_eventNov 9, 2026
Quantinuum participates in the Cantor Convergence 4th Annual Crypto, FinTech, AI & Energy Infrastructure Conference in Florida in Nov '26, including a fireside chat and one-on-one meetings with investors.
- has_lossNov 7, 2026
Quantinuum reports $1.94B in cash and a $118 million GAAP net loss for Q3 '26.
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Quantinuum Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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