Leadfeeder - Leadfeeder converts your website visitors into sales. Connect your website's Google Analytics to Leadfeeder and unlock the power of seeing who`s visiting your site!
Crunchbase - Crunchbase is a platform for discovering industry trends, investments, and news about companies around the world.
Clearbit - Clearbit provides Business Intelligence APIs
CB Insights - CB Insights is a company database for the venture capital and corporate development community.
Lead Forensics - B2B website analytics and lead generation.
Tracxn - data on companies