Abstract: In an enterprise where a database maintains multiple accounts for business customers, a method, system, and computer program product correctly links accounts which are associated with a common business. Business identification information from one or more external data sources is obtained and the format of the business identification data is standardized. Data records of business accounts are compared according to a plurality of rules for matching one business account to another. When two business accounts are found to match according to the business matching rules, a common identifier is applied to both business accounts to flag the two accounts as being associated with the same business entity. One or more hierarchy rules are applied to accounts associated with a common business, to establish a hierarchy among the accounts for purposes of marketing and other business communications.

Abstract: In an enterprise where a database maintains multiple accounts for business customers, a method, system, and computer program product correctly links accounts which are associated with a common business. Business identification information from one or more external data sources is obtained and the format of the business identification data is standardized. Data records of business accounts are compared according to a plurality of rules for matching one business account to another. When two business accounts are found to match according to the business matching rules, a common identifier is applied to both business accounts to flag the two accounts as being associated with the same business entity. One or more hierarchy rules are applied to accounts associated with a common business, to establish a hierarchy among the accounts for purposes of marketing and other business communications.