Wire is a collaboration platform for organisations offering messaging, voice and video calls, conferencing and file sharing. It is aimed at businesses and public bodies and provides single sign-on via SAML, SCIM support, administrative controls and federation features for government use. Wire runs on iOS, Android, desktop and in the browser, and can be deployed as a cloud service, on premises or as a hybrid. According to the vendor, all communication is end-to-end encrypted by default, using the MLS and Proteus protocols.
Wire Swiss GmbH is headquartered in Zug, Switzerland, with a development centre in Berlin, and is held by Wire Group Holding GmbH in Germany. Wire states that its servers are in Germany and Ireland. The client apps are on GitHub under the GPL and the server code under the AGPL, so organisations can inspect the code or self-host; Wire's terms do restrict how self-compiled apps connect to Wire's own servers. According to its security page, Wire is certified to ISO 27001 and ISO 27701.