United States · 
Who invested in Quantinuum?
Quantinuum's investors include QED Investors, Korea Investment Partners, JP Morgan, JP Morgan Chase and Mitsui & Co, and 3 more on record.
2026
$600MGrowth$100MGrant
United States · Funded startup
Who invested in Quantinuum
2 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 2 months agoValuation: $5.0B, Oct 2024
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Funding summaryUpdated 5 Nov 2026
$700Mraised across 2 rounds since 2025, from 3 sources
$600MGrowth$100MGrant
- Latest round
- Grant, $100MSept 2026
- Biggest round
- $600MGrowth · Sept 2025
- Investors
- 8 (1 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Growth, $600M Sept 2025
- Biggest round
- $600M Growth · Sept 2025
- Between rounds
- 12 months from the last two
The rounds
- Sept 2026
- Sept 2025Growth$600M8 new
JP Morgan ChaseLead
QED Investors
Korea Investment Partners
JP Morgan
Mitsui & Co
NVentures
Honeywell
Quanta Computer
Reported by TechStartups and 1 otherSEC filing: $594M sold, first sale Aug 2025
Funding filed with regulators
Quantinuum filed 2 raises, $891M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Aug 2025$839MSEC Form D
- Dec 2023$52MSEC Form D
Founders and team
From Quantinuum's own website: 22 on the team.
- Dr. Patty LeeChief Scientist for Hardware Technology Development
- Larry StackChief Commercial Officer
- Lawrence SchwartzChief Marketing Officer
- Nitesh SharanChief Financial Officer
- Prof. Harry BuhrmanChief Scientist for Algorithms and Innovation
- Robin SchulmanChief Legal Officer
- Rory O’ByrneChief People Officer
- Dr. David Muñoz RamoHead of Quantum Chemistry
- Dr. Florian CurchodHead of Quantum Cryptography
- Dr. Stephen ClarkHead of AI
- Dr. Brian NeyenhuisDirector of Cloud Operations
- Dr. Dave HayesDirector of Computational Design and Theory
- Dr. Elvira ShisheninaSenior Director of Strategic Initiatives
- Dr. Grahame VittoriniTechnical Director for On-Premises Projects and Operations
- Dr. Russell StutzSenior Director Product Technologies
- Dr. Steve SandersSenior Director Product Engineering Design and Producibility
- Eric BranderizIndependent Director
- Google Scholarboard of directors
And 4 more on the team.
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 8 firms list Quantinuum as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Quantinuum
How much has Quantinuum raised?
Quantinuum has raised $700M across 2 rounds since 2025.
When did Quantinuum last raise?
Quantinuum's most recent round was a Grant of $100M in Sept 2026.
What was Quantinuum's biggest round?
Quantinuum's largest round on record is $600M (Growth), in Sept 2025, led by JP Morgan Chase.
Who backed Quantinuum first?
Quantinuum's first round on record, in Sept 2025, was backed by JP Morgan Chase, QED Investors and Korea Investment Partners and 5 others.
What stage is Quantinuum at?
Quantinuum's latest named round is a Grant, in Sept 2026.
Where is Quantinuum based?
Quantinuum is based in the United States.
Who led Quantinuum's rounds?
JP Morgan Chase led the Growth in 2025.
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In the same sector, and raised in the last eighteen months.
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