Quantinuum Valuation Estimate
Quantinuum Valuation as of Last Funding Round
Quantinuum Company Overview
Quantinuum is a quantum computing company formed by the merger of Honeywell Quantum Solutions and Cambridge Quantum in 2021. It builds trapped‑ion quantum computers (H‑Series) and provides a software stack that includes the tket compiler, tools for quantum chemistry and materials modeling, and packages for optimization and machine learning. The company also offers quantum‑enhanced cybersecurity products such as Quantum Origin for generating high‑quality cryptographic keys. Quantinuum works with enterprises and research institutions on use cases in finance, pharmaceuticals, materials, and logistics, and provides access to its systems through the cloud and via partnerships. Its operations span hardware R&D, software platforms, and professional services to help customers run algorithms and benchmark performance.
Quantinuum Valuation History
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FAQ
Does Quantinuum have stock?
Yes, Quantinuum and almost all privately held companies issue stock so founders, employees, and investors can participate in equity ownership. However, because Quantinuum is privately held, it is more challenging to acquire shares than if the company was publicly traded.
Is Quantinuum publicly traded?
No, Quantinuum is a privately held company. It is not publicly traded or offered directly on any stock exchange like the NYSE, Nasdaq, etc.
Who owns Quantinuum stock?
As a privately held company, Quantinuum shares are held by its founders, management, employees, venture capital funds, or other private individuals and institutional investors.
Disclosure rules differ for private and public companies, so it may not always be possible to know the complete ownership (cap table) of a private company like Quantinuum.
What is the stock symbol for Quantinuum?
Quantinuum is a privately held company. Therefore, it does not have a stock symbol or “ticker” that trades on public exchanges like the NYSE, Nasdaq, etc.
Can I buy Quantinuum stock on UpMarket?
If you would like to buy shares in Quantinuum, please provide your information in the form at the top of this page and click the button titled “I want to buy this stock.”
One of our investor relations team members will contact you to discuss Quantinuum stock availability. Note: inquiries are non-binding, subject to market availability, and shares may only be purchased by accredited investors that meet all eligibility criteria.
UpMarket has offered many similar companies as Pre-IPO investments, including Airbnb, SpaceX, ByteDance, Plaid, Kraken, Databricks, and others. UpMarket also often has funds available that invest in a portfolio of companies potentially including, Quantinuum as well.
What is Quantinuum stock price?
The stock price of Quantinuum can be calculated by taking the valuation of the company divided by the number of shares outstanding. Because a private company can issue new shares at any time, we do not know the current number of shares outstanding.
For illustrative purposes, however, assuming Quantinuum has issued 250 million shares, at the estimated UpMarket valuation of $5.30 billion, each share of Quantinuum stock would be worth $21.20.
How do Quantinuum pre-IPO trades work?
Pre-IPO trades for Quantinuum will typically involve accredited investors purchasing shares from current shareholders through specialized investment platforms like UpMarket. Trades generally occur on the secondary market, meaning Quantinuum doesn't issue new shares or receive capital–shares are privately exchanged between two parties.
While investors aim to profit from a potential IPO or acquisition, these investments carry high risks due to limited liquidity and information. Understanding all terms and conditions is crucial, as each transaction can have unique characteristics. Investing in private companies can be extremely risky and may result in significant capital loss.
When is Quantinuum going to go public?
The decision to go public through an Initial Public Offering (IPO) is complex and depends on various factors, including the company's financial performance, market conditions, and strategic goals.
Unless Quantinuum officially announces its intention to go public, any predictions about when or if it will do so would be speculative.
Investors interested in Quantinuum should monitor official company communications and reliable financial news sources for any updates regarding potential IPO plans.
How do I exit my investment if I invest in Quantinuum with UpMarket?
Exiting your investment in Quantinuum typically involves one of these scenarios: 1) selling your shares on a secondary market to other interested investors; 2) holding shares until a liquidity event occurs, such as the company going public (IPO) or being acquired.
Investors must know that the timing and availability of these exit options are inherently unpredictable, and there is no guarantee of when or if they will occur.
How can I sell Quantinuum shares?
If you own Quantinuum shares, you may be able to find a buyer on a pre-IPO marketplace or via an introduction by a registered broker-dealer like UpMarket. It is important to note that the class of shares you own may impact your ability to sell. For example, shares issued to startup employees often have transaction limitations, including lock-up periods and a right of first refusal by the company, which may prevent you from selling your shares freely.
How does UpMarket estimate the valuation of Quantinuum?
UpMarket’s valuation estimate for Quantinuum is algorithmically generated based on recent primary round financings by Quantinuum, market conditions, company popularity, sector performance, and public market comps.
It is important to note that UpMarket’s valuation estimate for Quantinuum could be outdated, may not reflect all recent news or market events, and is not intended to inform any investment decision-making. UpMarket’s valuation estimate is not meant to be a warranty or projection of potential financial returns or company performance. Valuations can change rapidly and unexpectedly.
Why choose UpMarket?
Founded in 2019, UpMarket has brokered over $450 million in alternative investments for more than 800 investors, including principal invested and appreciation as of May 31, 2025. These investments span pre-IPO companies, hedge funds, private equity, real estate, and other alternative assets. Approximately $92 million is managed by UpMarket Management, with the remainder managed by affiliates. Past performance is not predictive of future results. UpMarket is a licensed broker-dealer based in the United States.
If you are an accredited investor, you can create a free account to access our deal flow and opportunities. There is never any pressure to invest.
UpMarket clients have invested in companies like
Quantinuum,
SpaceX, Neuralink, Anthropic, and many others. UpMarket and its leadership have been mentioned in media outlets like Forbes, WealthManagement, Wealth and Finance News, and TechBullion.
Quantinuum Management
| Name | Position |
|---|---|
| Rajeeb (Raj) Hazra | CEO |
