CRMfusion - CRMfusion is a suite of data quality and data integration tools that integrate well with Salesforce.
Melissa Listware - Melissa’s Listware is the all-in-one data quality tool designed to stop bad data in its tracks. It’s affordable and easy to use with pay-as-you-go pricing that includes up to 1000 free credits every month.
Duplicate Check - Start creating data happiness. Find, merge and prevent duplicate records in your Salesforce Organization.
ZaapIT - Mass Merge, auto merge, duplicates cleanup, bulk edit, bulk update, bulk delete , mass lead convert
17hats - The all-in-one business system for entrepreneurs.
Cloudingo - Cloudingo - a cloud-based SaaS, connects to Salesforce and allows system administrators to scan their entire database for similar or duplicate records.