Quantinuum
IPOAccelerating Quantum Computing
Public · 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
- Type
- Public
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
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 in Sep 2025. Investors include Honeywell, JPMorgan Chase and Mitsui & Co.
Tech & App Stack
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Funding & Exit History
Jun 2026
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Funding: Corporate Round. Amounts, valuations, and investors where available.
Investors
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