RingLead - RingLead offers a complete end-to-end suite of products to clean, protect, and enhance company and contact information.
Cloudingo - Cloudingo - a cloud-based SaaS, connects to Salesforce and allows system administrators to scan their entire database for similar or duplicate records.
WinPure Clean & Match - WinPure Clean & Match is the worlds best data cleansing & data matching software for sophisticated matching, cleansing and deduplication.
CRMfusion - CRMfusion is a suite of data quality and data integration tools that integrate well with Salesforce.
Oracle Data Quality - Overview of Oracle Enterprise Data Quality
ZaapIT - Mass Merge, auto merge, duplicates cleanup, bulk edit, bulk update, bulk delete , mass lead convert