Quantinuum

Headquarters

Broomfield, Colorado, USA

Founded

2021

Employees

~700 (per SEC Form 424B4, June 2026)

Total funding

$1.7B+ pre-IPO (2024-2025 rounds); IPO'd 2026 at $17.6B valuation

Stage

Public

Status

public

Domains

Quantum computing hardware and software, Trapped-ion quantum processors, Quantum cryptography

Website

www.quantinuum.com

• FounderIlyas KhanFounded Cambridge Quantum Computing in 2014; became founding CEO of Quantinuum after its 2021 merger with Honeywell Quantum Solutions, now serving as Vice Chairman and Chief Product Officer. Also a director of Cambridge Quantum Holdings Ltd (with Waseem Shiraz), the entity holding Quantinuum's Cambridge Quantum-side shares, and a Leader in Residence at Cambridge Judge Business School.
• FounderRajeeb HazraPresident and CEO of Quantinuum, named to the role effective immediately on February 14, 2023, succeeding founder Ilyas Khan. Spent 25 years at Intel before becoming General Manager of Micron's Compute and Networking Business Unit. PhD in Computer Science from the College of William & Mary; BS from Jadavpur University.

• FundJPMorgan ChaseGlobal bank and strategic investor; anchored Quantinuum's $300M 2024 equity round at a $5B pre-money valuation, and has since collaborated with Quantinuum and Argonne National Laboratory on quantum-speedup research.
• FundMitsui & Co.Japanese trading and investment conglomerate; participated in Quantinuum's $300M 2024 equity round and separately signed a 2024 distributorship agreement to market Quantinuum's quantum computing and quantum-safe cybersecurity offerings across Japan and the wider Asia-Pacific region.
• FundAmgenUS biopharmaceutical company; participated in Quantinuum's $300M 2024 equity round as a strategic investor, alongside exploring quantum-computing applications for drug discovery.

Approximate ownership by holder. Indexed holders link to their records.

No linked records yet.

• ProgramDARPA Quantum Benchmarking InitiativeDARPA program assessing whether emerging quantum computers can achieve utility-scale operation faster than conventional projections. Quantinuum was selected to advance to the one-year Stage B R&D phase (up to $15M in funding); Phasecraft was separately named a technical expert on the program, alongside University of Maryland ARLIS, developing resource-requirement estimates for candidate quantum applications.

What does Quantinuum do?

Quantinuum was formed in November 2021 via the business combination of Honeywell Quantum Solutions and Cambridge Quantum Computing (the latter founded in 2014 by Ilyas Khan). Dual-headquartered in Cambridge, UK and Broomfield, Colorado, with additional facilities in Germany, Japan, Qatar, and Singapore, it builds full-stack trapped-ion quantum hardware and software/middleware. Khan serves as Vice Chairman and Chief Product Officer; Dr. Rajeeb Hazra has been CEO since February 2025. The company completed a Nasdaq IPO in June 2026 at a $17.6B valuation, reporting approximately 700 employees (over 450 with PhDs or Master's degrees) in its SEC Form 424B4 registration statement. Quantinuum was selected by DARPA to advance to Stage B of the Quantum Benchmarking Initiative (up to $15M in funding), and partners with Microsoft Azure Quantum, JPMorgan Chase (quantum-speedup research with Argonne National Laboratory), and Mitsui & Co. (a 2024 distributorship agreement for Japan/APAC); named customers in its IPO filing include Airbus and BMW Group.

Where is Quantinuum headquartered?

Quantinuum is headquartered in Broomfield, Colorado, USA and was founded in 2021.

How much funding has Quantinuum raised?

Quantinuum has raised $1.7B+ pre-IPO (2024-2025 rounds); IPO'd 2026 at $17.6B valuation in disclosed funding.

What does Quantinuum specialize in?

Quantinuum works across Quantum computing hardware and software, Trapped-ion quantum processors, Quantum cryptography.

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