The answer is ''yes''! However, in order to invite users to manage your organisation, the user needs to be a channel admin in at least one of the channels of your organisation.
The steps to invite users to manage your organisation are as following:
1. Go to 'Administration' section
2. Search the name of the user whom you want to make Organisation Admin with our search function or manually.
Note: In case the user is not active, you will find the user under the Inactive section. In case, the user name is not listed in the Administration tab, it means that the user is not a channel admin in any of the channels of your organisation which is a prerequisite to invite users to manage organisation.
3. Click 'make Admin' button available beside the user name.
Hurray!! You have now successfully invited the user as ''Organisation Admin'' to manage your organisation. Please observe that the role status of the user has changed from 'Channel Admin' to 'Admin'.
Additionally, in order to restrict any user to access the organisation, means removing user from "Organisation Admin" role, just click on 'remove from org admins' button shown beside the user.