Quantinuum
Quantinuum is the world's largest integrated quantum computing company, formed in 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum. Registered in the UK with European headquarters in Cambridge, the company builds trapped-ion quantum computers (H-Series) that hold the record for highest quantum volume. Quantinuum also develops quantum software including the open-source TKET compiler and quantum cybersecurity products.[1]
- Founded:
- Country: United Kingdom
- Type: hybrid
- Headquarters: Cambridge, United Kingdom
- Employees: 600+
- Funding: USD 1.2B+
- trapped-ion
- full-stack
- quantum-volume
- cybersecurity
- TKET
What does Quantinuum do?
Quantinuum is the world's largest integrated quantum computing company, formed in 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum. Registered in the UK with European headquarters in Cambridge, the company builds trapped-ion quantum computers (H-Series) that hold the record for highest quantum volume. Quantinuum also develops quantum software including the open-source TKET compiler and quantum cybersecurity products.
Where is Quantinuum based?
Quantinuum is headquartered in Cambridge, United Kingdom, in the European quantum computing ecosystem.
Visit Quantinuum
Frequently Asked Questions
What does Quantinuum do?
Quantinuum is the world's largest integrated quantum computing company, formed in 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum. Registered in the UK with European headquarters in Cambridge, the company builds trapped-ion quantum computers (H-Series) that hold the record for highest quantum volume. Quantinuum also develops quantum software including the open-source TKET compiler and quantum cybersecurity products.
Where is Quantinuum based?
Quantinuum is based in Cambridge, United Kingdom.
When was Quantinuum founded?
Quantinuum was founded in 2021.
Sources
- "Quantinuum Official Website", accessed 2026-03-19 — quantinuum.com
- "Honeywell Announces $600 Million Capital Raise For Quantinuum at $10B Pre-Money Equity Valuation", accessed 2026-03-19 — Press Release
- "Quantinuum - Wikipedia", accessed 2026-03-19 — en.wikipedia.org