ZaapIT - Mass Merge, auto merge, duplicates cleanup, bulk edit, bulk update, bulk delete , mass lead convert
Salesflare - Simply powerful CRM. Automates your data to build better relationships and make more sales.
Duplicate Check - Start creating data happiness. Find, merge and prevent duplicate records in your Salesforce Organization.
17hats - The all-in-one business system for entrepreneurs.
Apsona for Salesforce - Apsona for Salesforce is an add-on application for Salesforce to manage the data.
LinkPoint Connect - LinkPoint Connect: Desktop Edition for Salesforce links the work you do in your email to the records you need to update in the CRM.