Microsoft Teams
Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.
21 Alternatives To Microsoft Teams

Airtable
Airtable works like a spreadsheet but gives you the power of a database to organise anything.
Airtable can store information in a spreadsheet that’s visually appealing and easy-to-use, but it’s also powerful enough to act as a database that businesses can use for customer-relationship management (CRM), task management, project planning, and tracking inventory.

Bolste
Collaboration tool for small business teams
Cerb
Cerb is a fast, flexible toolkit for web-based collaboration and workflow automation.
Creativity 365
Cross-device content creation suite
Group Office
Group-Office is an enterprise CRM and groupware tool.

GroveSite
GroveSite is a web-based team collaboration solution for businesses of all sizes.
Inbox by Zendesk
Shared team email inbox.
Intraboom
Intraboom is a multi-purpose platform for all internal and external communication needs.
Kerio Connect
KerioConnect is a commercial mail and groupware server.
Micro Focus GroupWise
GroupWise collaboration software is a premier collaboration tool for large enterprises.
Niice
Niice is a canvas for creative discussion: a feedback tool that’s easier than email, and a smart, shared visual library for your team.
Plutio
Run your entire business from one intuitive platform
Slack
A messaging app for teams who see through the Earth!
Telegram
Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Thoughtexchange
The community intelligence platform that empowers leaders to build trust, make better decisions and humanize the communication experience.

Trello
Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.
Vabotu
More than slack. More than Trello. FREE.
Workplace by Facebook
Connect everyone in your company and turn ideas into action.
YellowAnt
YellowAnt is a AI-driven virtual assistant that helps manage all workplace application.