Clearbit - Clearbit provides Business Intelligence APIs
QlikSense - A business discovery platform that delivers self-service business intelligence capabilities
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Owler - Owler is a crowdsourced data model allowing users to follow, track, and research companies.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Whatagraph - Whatagraph is the most visual multi-source marketing reporting platform. Built in collaboration with digital marketing agencies