Systems and methods for analysis and linkage between different transaction data providers using de-identified data

A non-transitory medium having program instructions stored thereon, the medium comprising:

• instructions to receive a first set of de-identified transaction data from a first transaction data source, the first set of de-identified transaction data having all personally identifiable information removed therefrom;
• instructions to receive a second set of de-identified transaction data from a second transaction data source, the second set of de-identified transaction data having all personally identifiable information removed therefrom;
• instructions to filter said first and second sets of de-identified transaction data to identify transactions in each of said first and second sets of de-identified transaction data associated with at least a first entity and to create first and second filtered data sets including the identified transactions;
• instructions to remove data associated with an identifier field for each of said transactions in said first filtered data set to create a de-identified first data set;
• instructions to remove data associated with an identifier field for each of said transactions in said second filtered data set to create a de-identified second data set;
• and
• instructions to process said first and second de-identified data sets to establish a linkage between data in each data set.