HelpScout - Help Scout is a simple, straightforward way to provide excellent support
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Ticksy - Simple, beautiful customer support.
HelpNinja - Simple & Affordable help desk
Liveo.Chat - No one wants to talk to bots, chat with your customers
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates