avaamo - Simple, Secure Business Messaging
Clearbit - Clearbit provides Business Intelligence APIs
SupportKit - Embed Zendesk support into your iOS app with 1 line of code
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Fleep for Business - Simple, open collaboration and chat with admin capabilities
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.