Wire

Wire is a Swiss end-to-end encrypted messaging and collaboration platform that protects business communications with always-on encryption across messages, calls, and files — no configuration required. Built for enterprises and government agencies, it brings consumer-grade E2E crypto together with the compliance controls, audit logs, and federation capabilities organisations require.

Teams communicate through persistent conversations and instant meetings with screen sharing, while guest invitations enable secure collaboration across organisational boundaries. An open-source codebase allows independent audits, and deployment options span Wire's cloud, private cloud, or fully on-premises — with federated setups connecting multiple Wire instances across departments or partner organisations.

Key benefits:

• Always-on E2E encryption for messages, voice calls, video calls, and file transfers
• Zero-knowledge architecture — Wire cannot read your messages even if subpoenaed
• Federation to connect separate Wire instances across organisations or departments
• Guest rooms for secure communication with external parties without requiring a Wire account
• On-premises deployment for air-gapped or strict data sovereignty requirements
• Open-source clients on GitHub for independent cryptographic audits
• ISO 27001 certified and NIS2-compliant for regulated and critical infrastructure sectors

Operated by Wire Swiss GmbH, headquartered in Zug, Switzerland, with data processing compliant with GDPR and Swiss data protection law. Wire holds ISO 27001 certification and supports NIS2 requirements. Self-hosted deployments keep all data on organisation-controlled servers.

Trusted by 1,800+ organisations including BMW, EY, Schwarz Gruppe, and defence agencies across Europe and North America.