Internxt
Valencia-based zero-knowledge encrypted cloud storage provider building an open-source, post-quantum privacy ecosystem for consumers and small businesses.
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Internxt is a Valencia, Spain-based cloud storage company built around zero-knowledge, client-side encryption: files are encrypted on the user’s device before upload, encryption keys never leave the user’s control, and Internxt states it has no technical ability to decrypt customer data even under legal compulsion. Founded in 2020 by Fran Villalba Segarra, the company has since layered in post-quantum cryptography (a Kyber-based key encapsulation mechanism) into its Drive product, positioning itself as an early mover on quantum-resistant consumer storage rather than treating it as a future roadmap item.
The company has expanded from pure file storage into a broader privacy suite that now includes a VPN, antivirus, a system cleaner, dark web monitoring, and encrypted video conferencing, aiming to be a GDPR-native, EU-hosted alternative to US Big Tech cloud services. Internxt has raised roughly $12.9 million across multiple rounds, including a 2025 raise via Crowdcube crowdfunding alongside institutional backers, and reports nearly one million active users across 100-plus countries as of its most recent funding announcement, run by a lean team of roughly 30 employees.
Internxt’s core differentiation versus mainstream cloud storage (Google Drive, Dropbox, Microsoft OneDrive) is architectural: those providers can technically access customer files, while Internxt’s zero-knowledge model structurally cannot. It competes more directly with other privacy-first storage vendors like Proton Drive and Tresorit. Its bundled VPN and antivirus additions are consumer-market extensions of the core privacy proposition rather than independently differentiated enterprise security products, and Internxt remains a small, growth-stage company relative to the cloud storage incumbents it displaces data from.
Innovation Matrix Assessment
Internxt has visibly expanded its product line in a few years, moving from encrypted storage alone to add a VPN, antivirus, system cleaner, and encrypted video conferencing, indicating a faster-than-average feature expansion pace for a company of its size.
With roughly 30 employees serving close to one million active users across 100-plus countries, Internxt runs at meaningful scale for a small team, though it lacks the enterprise support infrastructure and SLAs typical of larger data-protection vendors.
Sequential funding rounds culminating in a 2025 raise, continued user growth toward the one-million mark, and steady product expansion point to real forward momentum, though revenue and profitability figures were not publicly available to independently confirm the pace.
Client-side zero-knowledge encryption combined with early post-quantum key encapsulation is a genuine architectural differentiator versus mainstream cloud storage providers, which retain technical access to customer data by design.
Internxt's open-source client code allows independent inspection of its encryption implementation, which is a real efficacy signal, but no independent third-party security audit report or penetration-test results were found in public sources to confirm the post-quantum and zero-knowledge claims hold up under scrutiny.
Data sovereignty, GDPR compliance, and growing awareness of cloud provider data access are active purchasing drivers in Europe right now, and post-quantum readiness is an emerging relevance factor as organizations start planning for cryptographically relevant quantum computers.
Why CISOs Should Care
For organizations and privacy-conscious teams that need GDPR-native, EU-hosted file storage where the provider structurally cannot access plaintext data, Internxt offers a verifiable zero-knowledge alternative to US cloud storage incumbents.
What Makes It Different
Internxt combines open-source, client-side zero-knowledge encryption with early post-quantum cryptography in a consumer-accessible product, rather than treating quantum resistance as an enterprise-only future feature.
The Matrix Verdict
53/100 — INCREMENTAL INNOVATOR
A fast-moving, privacy-architecture-first challenger to mainstream cloud storage with a real technical differentiator in zero-knowledge and post-quantum encryption, but still a small company whose security claims rest more on open-source transparency than independently published third-party audits.
Editorial Note: Claims vs. Verified Findings
Independently verifiable: 2020 founding, Valencia HQ, open-source client code, and disclosed funding rounds are corroborated by press coverage and public filings. Vendor-sourced and unverified: the specific claim of having no technical ability to decrypt data, exact active-user counts near one million, and post-quantum implementation robustness are Internxt's own statements and have not been confirmed via a published independent security audit.
Sources
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