Obie.ai - Access knowledge quicker without leaving Slack
Clearbit - Clearbit provides Business Intelligence APIs
Knowledge Plaza - Knowledge Plaza is a SaaS Platform dedicated to Social Knowledge Management.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.