A method, system and computer program product for indicating an organization of a visitor on a user interface of a user engaged in collaborative activity with the visitor. The visitor attempting to engage in a collaborative action (e.g., participating in an online meeting, sharing files) with a user from a different organization is authenticated to confirm that the visitor has the right to engage in collaborative activity with the user from the different organization. The identification of the organization of the visitor is extracted from the information used to authenticate the visitor. The identification of the organization of the visitor is then displayed on the user interface of the user engaging in the collaborative action with the visitor. In this manner, the organization of the visitor is easily discoverable by the user without requiring the user to perform a time consuming search to determine the organization of the visitor.