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Profisee Platform - Profisee Platform is a Master Data Management service that allows users to easily create and update your company’s data in a single centralized database.
V12 Data - V12 Data offers rich data sets with verified addresses and emails for personalized marketing campaigns.
Contentserv MDM - Contentserv offers master data management solutions to import, aggregate, cleanse and merge a wide variety of entities.
Google Audience Center - 3 votes and 6 comments so far on Reddit
Civica Multivue - Civica Multivue is a cloud-enabled Master Data Management software for collecting and normalizing data about people and things into canonical formats.