Clearbit - Clearbit provides Business Intelligence APIs
Communifire - Enterprise Social Collaboration Software
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
DigitalChalk - Online Training Software and Learning Management System (LMS)
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.