1)   BaseNow 1.1.7
BaseNow is a database front-end desktop application that provides a powerful tree-style user interface for all your databases. It connects to virtually any database, contains built-in deduplication, data validation, and import/export tools.

 2)   Dupe Checker PRO 6.3.1
Dupe Checker PRO will find all dupe files and folders for the same names, file duplicated content and size, empty files and folders.

 3)   Dedupe Software Screensaver 2.0
Provides a list of dedupe software that will help identify and remove duplicated records from lists, databases, spreadsheets and other sources. edupe, dedupe software, data dedupe, deduplication.

 4)   DataMatch 2009 2.5.1
DataMatch 2009 is a powerful and comprehensive data cleansing, matching, and deduplication tool. Designed to be used by anyone, not just IT professionals, with an intuitive interface that shows the modifications you are making in real time.