DemandTools is a data quality toolset for Salesforce CRM. De-deduplication, normalization, standardization, comparison, import, export, mass delete, and more.
BriteVerify is an email verification solution.
DupeBlocker stops the users from being able to create duplicates in real time as well as web lead dupes and SFDC to SFDC dupes.
Import Leads, Accounts and Contacts into Salesforce with PeopleImport.
ParentFixer insures when a Salesforce CRM parent account is merged with another account, all of the children accounts are re-parented to the master account in the merge.