Quantinuum
IPOAccelerating Quantum Computing
Broomfield, United States · Founded 2021 · $900.0M raised
- Headquarters
- Broomfield, Colorado
- Employees
- 201–500
- Founded
- 2021
- Business Model
- B2B
- Website
- quantinuum.com
- Total Funding
- $900.0M
- Last Round
- $600.0M Corporate RoundSep 2025
- Rounds
- 2
About
Formed in 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum, Quantinuum is headquartered in Broomfield, Colorado. The company develops both quantum hardware (H-Series trapped-ion quantum computers) and a full suite of quantum software including cybersecurity (Quantum Origin), quantum machine learning (InQuanto), and quantum natural language processing (lambeq). Quantinuum employs over 630 people.
Summary
Quantinuum is a Quantum Computing company based in Broomfield, United States, founded in 2021. It has raised $900.0M in total across 2 rounds, most recently a $600.0M Corporate Round round in Sep 2025. Investors include Honeywell, JPMorgan Chase and Mitsui & Co.
Tech & App Stack
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Funding History
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Jun 2026
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Investors
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