You can belong to as many Slack teams as you'd like. Slack accounts are at the team level, so you'll create a new Slack account for each team you join.
While each team account is separate, you can use the same email address to sign up for multiple teams.
Signing in to multiple teams
You can stay signed in to all your Slack teams, and seamlessly navigate between them. Here's how:
Desktop apps
Web
iOS
Android
Desktop apps
Adding and switching between Slack teams in our Mac, Windows and Linux apps is easy:
Click the team name to open the Team Menu.
Select Sign in to another team.
Enter an existing team's domain and click Continue, or Create a new team.
Enter your email address and password to sign in.
Once you're signed in to more than one Slack team, the app will display your team icons on the left-hand side so you can switch between them easily. (Owners and Admins can customize this icon for their team. See Uploading a team icon.)
Web
If you're using Slack on the web, you can open each team in a separate browser tab — just enter teamname.slack.com in your browser's address bar to sign in. You'll be able to receive desktop notifications for all teams simultaneously.
If you prefer to use a single browser tab, visit the Team Menu and select Sign in to another team. You'll then be able to switch between teams from this menu.
iOS
Swipe right to left to open the menu.
Tap Switch Teams.
Tap Sign in to another team.
You can triple-swipe to quickly switch between teams you're logged into.
Android
Tap your team name to open the channel list.
Tap the Team Menu.
Tap the Add team button to sign in to another team.
