1. A method comprising: ranking market entity records based on at least one of revenue and market ranking of market entities associated with the market entity records, the market entity records are selected from a plurality of unmatched market entity records, by executing a program instruction in a data-processing system; selecting a highest-ranking market entity record as an active entity record, the active entity record is associated with a first market, by executing a program instruction in a data-processing system; matching the active entity record to at least one of a remaining plurality of unmatched market entity records, the at least one of the remaining plurality of unmatched market entity records is associated with a second market separate from the first market, by executing a program instruction in a data-processing system; and wherein ranking market entity records includes responding to a determination that instances of a market entity record are stored in both an engine storing just-in-time advertising platform enabled market entity records and an advertiser service storing other market entity records by combining scores associated with the instances to associate each instance of the market entity records with a common score.