Clearbit - Clearbit provides Business Intelligence APIs
LeadBot by Drift - Qualify leads on your website without forms or humans
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Google Analytics Lead Generator - Instantly get free leads from Google Analytics
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Sniply - Sniply is a content marketing tool providing social media conversion.