QuintessenceLabs
PrivateLast Round
Series B
Extension
Apr 1, 2025
Total Funding Raised
$43M
Company Overview
QuintessenceLabs operates in Cybersecurity and is based in Canberra. Its latest recorded funding round was a Series B Extension round in April 2025.
QuintessenceLabs is a cybersecurity company that provides quantum-resilient data protection solutions, including high-speed quantum random number generation, crypto-agile key management, and quantum key distribution.
Sector
Cybersecurity
Verticals
Data Protection, Quantum Computing, Cloud Security, Defense Tech, Zero Trust
Business Model
B2B
Customer Profile
Hardware Sales, Subscription SaaS, Government Contracts, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
QuintessenceLabs Comparables
Compare QuintessenceLabs with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Qrypt | 87% | |
| Crypto4A Technologies | 84% | |
| QuSecure | 82% |
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QuintessenceLabs Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B Extension | Apr 1, 2025 | ||||
| Series B Extension | Mar 8, 2022 | ||||
| Series B | Oct 26, 2021 | ||||
| VC Round | Feb 19, 2020 | ||||
| Grant | Jan 23, 2018 | ||||
Grant | Jul 17, 2017 |
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Key People
Founding team and executive leadership
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QuintessenceLabs Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Main Sequence | Series B Extension, Series B |
| Westpac Banking Corporation | VC Round |
| InterValley Ventures | Series B, Series B Extension |
| National Reconstruction Fund Corporation | Series B Extension |
| Australian Government Defence Innovation Hub | Grant |
| In-Q-Tel | VC Round |
| Chevron Technology Ventures | Series B Extension |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 16, 2025
Partnered with CSIRO and AARNet on a joint project.
- Jun 10, 2025
Won the 2025 Intellyx Digital Innovator Award.
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Recent news
Latest coverage and updates
- launchesSep 23, 2026
QuintessenceLabs unveils TSF Sentry, a cryptographic assessment tool that provides automated remediation beyond vulnerability detection, at Quantum World Congress Park in Maryland in 2026.
- attends_eventSep 23, 2026
On Sep 23rd '26, QuintessenceLabs introduced TSF(R) Sentry and its PQC Readiness Assessment at Quantum World Congress in Maryland.
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QuintessenceLabs Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Frequently Asked Questions
Common questions about QuintessenceLabs's valuation, stock price, and market status.
Is QuintessenceLabs a public or private company?
QuintessenceLabs is a private company.
What is the current stock price of QuintessenceLabs?
QuintessenceLabs is a private company, so its shares have no public market price. Caplight tracks QuintessenceLabs's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is QuintessenceLabs worth (valuation)?
Valuation information for QuintessenceLabs is not publicly available.
Can I buy QuintessenceLabs stock?
QuintessenceLabs shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was QuintessenceLabs's last funding round?
QuintessenceLabs's most recent funding round was Series B Extension on April 1, 2025.
Who are the main investors in QuintessenceLabs?
Key investors in QuintessenceLabs include Main Sequence, Westpac Banking Corporation, National Reconstruction Fund Corporation, In-Q-Tel, Chevron Technology Ventures.
Will QuintessenceLabs IPO soon?
No public IPO plans have been announced for QuintessenceLabs.
How can I track QuintessenceLabs secondary market activity?
Caplight tracks bids, offers, and trades in QuintessenceLabs's shares on secondary markets.