Slack is a platform for team communication: everything in one place, instantly searchable, available wherever you go. Offering instant messaging, document sharing and knowledge search for modern teams.

Discord is an all-in-one voice and text chat for gamers.

Keep your team focused and working together with Chatwork's team chat, tasks, video chats, and more in one place.

Google Hangouts Chat is an intelligent communication app for teams that takes direct messaging in Google Hangouts and evolves it to reflect the way modern teams talk business.

Rocket.Chat is an Open Source team communication platform: features from team chat to helpdesk live-chat, video conferencing and many more.

Cisco Webex Teams brings teams together instantly in spaces where you can send messages, video chat, and share files, all in one place. Working together is simple and secure.

Mattermost offers modern team communication, behind your firewall. Share messages and files across phones and PCs, with archiving and instant search.

Twist keeps your conversations on-topic and in one place. For teams who want to make work calmer, more organized, and more productive.

Microsoft Teams is the hub for teamwork in Office 365 that integrates all the people, content, and tools your team needs to be more engaged and effective.

Yammer makes it easy to communicate within your company at the speed of light with your own internal social networks where employees can connect and build meaningful business relationships.