PsiQuantum is a private quantum computing company developing fault-tolerant, photonic quantum computers. It is based in Palo Alto and was founded in 2016. Jeremy O'Brien is listed as CEO.
Access to pre-IPO shares is available to accredited investors through UpMarket.
Latest Price
$3.1B
Undisclosed round, 2023, Perplexity
UpMarket Estimate
$3.1B
Based on UpMarket valuation model
Previous Price
Undisclosed round 2021
How to Invest in PsiQuantum Through UpMarket
PsiQuantum shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
Step 01
Verify accredited investor status
Confirm eligibility under SEC Rule 501 of Regulation D. Income or net worth threshold applies.
Step 02
Create an UpMarket account
Complete KYC/AML onboarding. Typically 1–2 business days. Licensed rep assigned on signup.
Step 03
Review available PsiQuantum offerings
Full offering memoranda and risk disclosures provided before any commitment is required.
Step 04
Complete subscription documents
Review and sign subscription agreement. All documents handled digitally through the platform.
Step 05
Fund your investment
Wire transfer or ACH. $50K minimum. Funds held in custodial account until close.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
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Valuation Growth Over Time
Post-money valuation by round
Previous roundsMost recent
Date
Round
PPS (split-adj.)
Valuation
2023
Undisclosed round
$3.1B
2021
Undisclosed round
2020
Undisclosed round
2019
Undisclosed round
Why Investors Are Watching PsiQuantum
Growth Signal
PsiQuantum raises $1B Series E at $7B valuation
PsiQuantum announced a $1 billion Series E led by BlackRock, Temasek, and Baillie Gifford, valuing the company at $7 billion. The round added investors including NVentures, Macquarie Capital, Qatar Investment Authority, and Counterpoint Global.
Competitive Moat
Governments back PsiQuantum with nearly $1B for Brisbane
The Australian Commonwealth and Queensland governments said they would invest almost $1 billion, with each contributing $466.4 million through debt and equity. The funding supports a fault-tolerant quantum computer project in Brisbane.
PsiQuantum says it is building the first utility-scale quantum computer and plans datacenter-sized Quantum Compute Centers in Brisbane and Chicago. The company is targeting operational utility-scale quantum computers by 2027.
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No. As of March 2026, PsiQuantum is a private company and does not trade on any public stock exchange. Accredited investors can access PsiQuantum shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
PsiQuantum does not have a public stock price because it is privately held. The most recent known share price comes from its last funding round. Pre-IPO share prices on the secondary market may differ from the last round price depending on supply, demand, and market conditions.
Yes. Accredited investors can indicate interest in PsiQuantum shares through UpMarket by filling out the form on this page or creating an account at upmarket.co. All pre-IPO offerings are subject to availability and require a $50,000 minimum investment. UpMarket is a FINRA-registered broker-dealer and has brokered alternative investments since 2019.
Pre-IPO investments carry significant risks. PsiQuantum shares are illiquid, meaning there is no public market to sell them quickly. There is no guaranteed exit timeline or return. The investment is speculative in nature, and investors should be prepared for the possibility of total loss. Valuations of private companies can fluctuate substantially between funding rounds. Investors should consult their financial advisor and review all offering documents before investing.
In a pre-IPO transaction, accredited investors purchase shares from existing shareholders (such as employees, early investors, or other holders) through secondary market platforms. The company itself does not issue new shares in these transactions. UpMarket facilitates these trades as a FINRA-registered broker-dealer, handling compliance, documentation, and settlement on behalf of both parties.
There are two primary exit paths for pre-IPO holdings: selling your shares on the secondary market to another buyer, or holding until the company completes an IPO or is acquired. Both paths are subject to transfer restrictions, company approval (right of first refusal), and market conditions. The timing of any exit is unpredictable, and investors should plan for a multi-year holding period.
The minimum investment for most pre-IPO offerings on UpMarket is $50,000. This amount may vary depending on the specific offering and share availability. There are no fees to create an UpMarket account or browse available investments. Investors only pay transaction-related fees when they complete an investment.
UpMarket's valuation estimate of $3.1B is derived from a proprietary model that incorporates multiple data sources: funding round data (Caplight), revenue estimates (Sacra), secondary market pricing, and public company comparables. The model applies a private company discount to the public comp multiple to account for illiquidity and information asymmetry. This estimate is not investment advice and may differ substantially from the price at which shares actually trade.
PsiQuantum is a private, Palo Alto-based quantum computing company developing fault-tolerant photonic quantum computers and valued at $3.0B, after raising $1B in its Series E at a $7B valuation. Accredited investors can access PsiQuantum stock through UpMarket.