Best Secure Team Chat Software in 2026

Crypho

Crypho names finance, energy, enterprise, government, law enforcement, and small companies with security requirements as typical users.

Celo

Celo is aimed at healthcare teams of all sizes coordinating care and communicating with patients and external stakeholders.

Eleven for Business

It suits small businesses that need encrypted group chat, file sharing, and temporary client access.

Wire

Wire suits organizations seeking encrypted communications, including those needing private-cloud or on-premises deployment.

AWS Wickr

AWS Wickr is aimed at organizations handling sensitive communications, including executives, security teams, field operators, and other professionals.

Teamwire

It suits organizations coordinating mobile teams, routine work, or critical operations, including public safety, healthcare, government, and critical infrastructure users.

Diode Collab

Diode Collab suits teams, families, and organizations that need messaging, file exchange, and remote access across many platforms.

Secretly for Teams

It suits organizations needing encrypted communication and administrative policy controls, especially legal, healthcare, journalism, and finance teams.

eXpress

It suits organizations seeking workplace messaging, video meetings, and access to corporate processes in one platform.

Threema

Threema may suit people seeking messaging without providing a phone number or email address, as well as organizations needing messaging integrations and administration tools.

It suits business teams and partners who want chat, file sharing, search, and voice calling connected to a VoIP phone system.

Troop Messenger

It suits teams that need messaging across desktop and mobile platforms, with guest access and integrations such as Google Drive or LDAP/Active Directory.