Certain implementations of the disclosed technology include systems and methods for linking entities in an internal database by utilizing co-convergence and clustering. The method may include clustering database records into a first set of clusters having corresponding first cluster identifications (IDs). The clustering may be based at least in part on determining similarity among corresponding field values. The method may include associating mutually matching database records, by performing at least one matching iteration for each of the database records. The method may include determining similarity among corresponding field values of the database records, re-clustering at least a portion of the database records into a second set of clusters, the re-clustering based at least in part on the associating mutually matching database records and on the determining similarity among corresponding field values of the database records.