Clearbit - Clearbit provides Business Intelligence APIs
DataXu - Marketing analytics for brands and agencies.
V12 Data - V12 Data offers rich data sets with verified addresses and emails for personalized marketing campaigns.
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
SurveyCTO - Collect data you can trust Offline or online, in the field, on the street, or in the lab.
Amobee DSP - Cross-Channel Advertising