CIPHERCUE
Email security

European email security vendors

A curated list of cybersecurity vendors headquartered in the European Union, in the Email security category. A sovereign alternative to foreign email security gateways.

6 vendors listed · 1 matching filters · last reviewed June 2026

Country BE DE FR IT

Hannover-based end-to-end encrypted email and calendar; quantum-resistant encryption roadmap.

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Missing a vendor?

If you run or know an EU-headquartered Email security vendor that should be here, email hello@ciphercue.com with the name and HQ country.

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