Arqit Quantum Inc.
PublicLast Round
Pre Seed
Jul 16, 2026
Total Funding Raised
$11.4M
Company Overview
Arqit Quantum Inc. is a cybersecurity company that provides a quantum-safe symmetric key agreement encryption platform to secure communications and data against current and future cyber attacks.
AI Layer
Non-AI
Keywords
symmetric key agreementquantum-safe encryptionpost-quantum cryptographyPQCquantum-resistant cryptographyHarvest Now, Decrypt Laterencryption platformgovernment cybersecuritydefense technologynetwork securityPKI replacementquantum-safe VPNtelecom securitykey managementNSA compliancePaaStactical edge securitydigital asset securitytrade finance securitysoftware licensing
Arqit Quantum Inc. Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
Arqit Quantum Inc. Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Pre Seed | Jul 16, 2026 | ||||
| Series A | Sep 23, 2024 |
Key People
Founding team and executive leadership
Arqit Quantum Inc. Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Crosslink Capital | Series A |
| Intact Ventures | Series A |
| Nationwide Ventures | Series A |
| Big Sur Ventures | Pre Seed |
| Foxe Capital | Series A |
| Lightspeed Venture Partners | Series A |
| Ground State Ventures | Pre Seed |
Arqit Quantum Inc. Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Firmographic Details
Headquarters—
Employee Range101
Year Founded2017
Last FundingJul 16, 2026