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

Sort Name A-Z Founded year Employees Reset filters

Country BE DE FR IT

Size 11-50 201-500 501-1000

Retarus

Munich-based enterprise messaging and email security platform.

Certifications

ISO 27001 SOC 2 Type II

Browse other European cybersecurity categories

VPN & remote access IAM & SSO EDR & XDR SIEM & observability IGA & PAM Firewall & NGFW Data loss prevention Cloud security (CSPM / CNAPP) MDR & managed SOC

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.

← Back to all European cybersecurity vendors