Clearbit - Clearbit provides Business Intelligence APIs
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Lusha - Search less. Sell more.
Adobe Audience Manager - Adobe Audience Manager is a data management platform that integrates online and offline data to deliver a unified view of all your audiences
Datanyze - The sales prospecting tool powered by technology data
V12 Data - V12 Data offers rich data sets with verified addresses and emails for personalized marketing campaigns.