Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
NetHunt CRM - Turn Gmail into a smart CRM
HelpSpace - The team inbox with super powers
Mutiny - Personalize your website for each visitor
Inbox by Reply - Handle your hot sales emails faster
River - River is a lightweight SaaS-based product. It is built for businesses and designed for teams.