Concurrent users refers to the number of licensed users who can start simultaneous sessions (remote control or meeting).

Business

A single user license permits connections from up to 3 devices (e.g. computers or mobile devices). After activating the 3 devices of your choice, TeamViewer will allow 9 additional movements per year should you need to format or exchange a device.
NOTE: Only one TeamViewer subscription per customer is allowed. If you need more than that, please contact us.

The Business license is a single-user license and thus only requires its single session channel. Concurrent sessions started by multiple licensed users are not possible.
A single user license permits connections from up to 3 devices (e.g. computers or mobile devices). After activating the 3 devices of your choice, TeamViewer will allow 9 additional movements per year should you need to format or exchange a device.

Premium

Allows multiple licensed users to access a single concurrent session.
NOTE: Only one TeamViewer subscription per customer is allowed. If you need more than that, please contact us.

The Premium license comes standard with one session channel. 15 licensed users, allowing 1 user to open 1 remote session at a time.
Allows multiple licensed users to access a single concurrent session.

Corporate

Allows multiple licensed users to access up to three concurrent sessions.
NOTE: Only one TeamViewer subscription per customer is allowed. If you need more than that, please contact us.

The Corporate license includes three session channels. Includes 30 licensed users, allowing 3 users to open 1 remote session each, at the same time.
Allows multiple licensed users to access up to three concurrent sessions.

You can expand the number of AddOn channels for your Premium or Corporate license at any time by purchasing them additionally.

Example: Your company has purchased a Corporate license and one AddOn channel. This means that 4 concurrent users from as many as 200 licensed users can establish sessions simultaneously.