Abstract: The method allows users of mobile devices or desktop/laptops in an organization to perform a search on a collated list of contacts for a particular contact and determine who, within the system/organization, may have that contact in their list. Contact lists from individual mobile devices are collated and stored and are searchable. A rating for the strength of each contact in a user's mobile contact list is made by determining the type of contact that the user uses to communicate with the contact and by the frequency with which the user communicates with the contact. This can be done across the contacts for the entire organization. The organization can also determine the strength of the contact list of someone in the organization or the relative strength of each contact.