By Wire Swiss GmbH

Wire

Swiss team messenger with open-source clients and end-to-end encryption.

AGPL-3.0 (clients) · https://wire.com

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Hosting: Global SaaS Reviewed

European messaging with E2EE; open-source clients.

Fair 2.7
Easy 3.7
Secure 5.0

FES Scores 9

Pillar	Criterion	Score	Evidence
Easy	Day-one UX Can non-technical staff use it without a project?	4	Clean mobile-first UX. Source
Easy	Operate Admin burden, updates, backups and language coverage.	4	Cloud or on-prem enterprise editions. Source
Easy	Integrate SSO, mail/CalDAV, APIs and common NGO connectors.	3	Guest rooms and some SSO on paid plans. Source
Fair	Lock-in / exit Can you leave with your data in open formats, at known cost?	2	Rule baseline (rubric_v1): global SaaS APIs/export exist, but suite gravity and remapping remain. Source
Fair	Sovereignty EU legal entity, EU hosting, and exposure to extra-EU lawful access?	1	Rule baseline (rubric_v1): non-EU legal entity + global SaaS — high extra-EU lawful-access exposure. Source
Fair	Openness Open source or open standards? Are independent implementations possible?	5	Rule baseline (rubric_v1): license classified as open-source family. Source
Secure	IT security Authentication, encryption, patch cadence and independent audit.	5	E2EE is the default product promise. Source
Secure	User security 2FA, roles, phishing resistance and safe defaults.	5	Strong device management and 2FA. Source
Secure	Personal data GDPR fit: DPA, residency, sub-processors and Schrems II posture.	5	E2EE plus Swiss/EU contractual options. Source

Indicative scores from public information — how we score.

Subprocessors 6

Name	Role	Residency	Verification date	Source
Amazon Web Services (AWS)	Hosting	EU + abroad	23 Oct 2026	Source
Google Cloud Platform (GCP)	Hosting	EU + abroad	23 Oct 2026	Source
Intercom	Other	EU + abroad	23 Oct 2026	Source
SendGrid	Email	EU + abroad	23 Oct 2026	Source
Sentry	Analytics	EU + abroad	23 Oct 2026	Source
Twilio	Other	EU + abroad	23 Oct 2026	Source