Information for personnel of a plurality of business organizations is collected. For each person, the information includes the name of the person, the identity of a business organization that the person currently works for and biographical information containing any affiliations identified for the person. Information for a plurality of affiliations is collected and a table of the affiliations is generated, the table of affiliations being stored in computer-readable storage. From the collected information, a data structure is generated and is stored in computer-readable storage. The first data structure includes an entry for each match between the biographical information of a person and an affiliation included in the table of affiliations. A query of a user may be responded to by executing a computer-implemented process on the first data structure. Results of the query are displayed for the user.