People with owner or team maintainer permissions can add organization members to teams. People with owner permissions can also add non-members to a team and the organization.

  1. In the top right corner of GitHub Enterprise, click your profile photo, then click Your profile. Profile photo

  2. On the left side of your profile page, under "Organizations", click the icon for your organization. organization icons

  3. Under your organization name, click Teams. Teams tab

  4. On the Teams tab, click the name of the team. List of the organization's teams

  5. Above the list of team members, click Add a member. Add member button

  6. Type the username of the person you want to add and press Enter. The user will immediately be added to the team. Add team member popup

  7. Review the list of repositories that the new team member will have access to, then click Add USERNAME to TEAMNAME. Modal box with a list of the repositories the new team member will have access to and confirmation button

Further reading