Top 10 European Privacy Technology Companies

Stuttgart-based open-source file sync and collaboration platform installed on 400,000+ servers with 50M+ users. Nextcloud's on-premises model gives organisations full data sovereignty, and in 2025 it became the default private cloud platform for EU government agencies under the Gaia-X European digital sovereignty initiative.

Zurich-based zero-knowledge encrypted cloud storage and file sharing platform serving 10,000+ enterprises. Tresorit's client-side encryption means even Tresorit cannot access user data, making it the compliance solution of choice for European law firms, healthcare providers and financial institutions under GDPR.

Hanover-based fully encrypted email and calendar service with 10M+ users, operating entirely on servers in Germany. Tutanota's open-source codebase and quantum-resistant encryption roadmap — partially implemented in 2025 — position it as the longest-range bet in European private communications infrastructure.

Swiss secure messaging and collaboration platform used by governments, defence organisations and enterprises in 30+ countries. Wire's federated architecture enables on-premises deployment with full message security, and in 2025 it was adopted as the official secure communication tool by three EU member state defence ministries.

Paris-based consent and preference management platform processing 2B+ consent transactions monthly for 1,000+ global brands. Didomi's 2025 Universal Preference Center enabled users to manage data sharing preferences across all a brand's touchpoints simultaneously, setting a new bar for GDPR-compliant UX design.

Warsaw-based GDPR-native web analytics platform processing data exclusively on EU servers, used by 10,000+ organisations including EU institutions. Piwik PRO's 2025 cookieless tracking module enabled full analytics without consent banners for contextually non-personal data, solving European marketers' biggest measurement headache.

Atlanta-founded privacy management platform with a major European hub in London, used by 14,000+ organisations for GDPR compliance. OneTrust's EU-specific product suite expanded in 2025 with an automated EU AI Act compliance module, becoming the one-stop platform for European privacy and AI governance obligations.

London-based cookie consent management platform used by 1.5M+ websites globally. CookieYes's lightweight consent banner achieved 99.9% GDPR and ePrivacy compliance out of the box, and its 2025 auto-blocking feature for unapproved tracking scripts reduced compliance violations for SME clients by 95%.

Amsterdam-based decentralised consent infrastructure startup building blockchain-anchored consent records for GDPR audit trails. Consent.io's 2025 integration with Salesforce and HubSpot enabled marketing teams to store immutable proof of consent directly in their CRM, eliminating the compliance gap between consent capture and activation.

Stuttgart-based open-source file sync and collaboration platform installed on 400,000+ servers with 50M+ users. Nextcloud's on-premises model gives organisations full data sovereignty, and in 2025 it became the default private cloud platform for EU government agencies under the Gaia-X European digital sovereignty initiative.

Zurich-based zero-knowledge encrypted cloud storage and file sharing platform serving 10,000+ enterprises. Tresorit's client-side encryption means even Tresorit cannot access user data, making it the compliance solution of choice for European law firms, healthcare providers and financial institutions under GDPR.

Hanover-based fully encrypted email and calendar service with 10M+ users, operating entirely on servers in Germany. Tutanota's open-source codebase and quantum-resistant encryption roadmap — partially implemented in 2025 — position it as the longest-range bet in European private communications infrastructure.

Swiss secure messaging and collaboration platform used by governments, defence organisations and enterprises in 30+ countries. Wire's federated architecture enables on-premises deployment with full message security, and in 2025 it was adopted as the official secure communication tool by three EU member state defence ministries.

Paris-based consent and preference management platform processing 2B+ consent transactions monthly for 1,000+ global brands. Didomi's 2025 Universal Preference Center enabled users to manage data sharing preferences across all a brand's touchpoints simultaneously, setting a new bar for GDPR-compliant UX design.

Warsaw-based GDPR-native web analytics platform processing data exclusively on EU servers, used by 10,000+ organisations including EU institutions. Piwik PRO's 2025 cookieless tracking module enabled full analytics without consent banners for contextually non-personal data, solving European marketers' biggest measurement headache.

Atlanta-founded privacy management platform with a major European hub in London, used by 14,000+ organisations for GDPR compliance. OneTrust's EU-specific product suite expanded in 2025 with an automated EU AI Act compliance module, becoming the one-stop platform for European privacy and AI governance obligations.

London-based cookie consent management platform used by 1.5M+ websites globally. CookieYes's lightweight consent banner achieved 99.9% GDPR and ePrivacy compliance out of the box, and its 2025 auto-blocking feature for unapproved tracking scripts reduced compliance violations for SME clients by 95%.

Amsterdam-based decentralised consent infrastructure startup building blockchain-anchored consent records for GDPR audit trails. Consent.io's 2025 integration with Salesforce and HubSpot enabled marketing teams to store immutable proof of consent directly in their CRM, eliminating the compliance gap between consent capture and activation.