BizProspex - BizProspex offers CRM data cleaning solutions.
RingLead - RingLead offers a complete end-to-end suite of products to clean, protect, and enhance company and contact information.
WinPure Clean & Match - WinPure Clean & Match is the worlds best data cleansing & data matching software for sophisticated matching, cleansing and deduplication.
TowerData - demographic data on email addresses
Microsoft Data Quality Services - Data Quality
DEYDE MyDataQ - MyDataQ DEYDE Data Quality optimizes the costs of the campaign identifying duplicate records and unifying the profiles of the clients.