Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Chatlio - When you have a business to run, your average instant messaging software just will not do. You need an internal presence upon which your entire team can collaborate on. Read more about Chatlio.
Pure Chat - Pure Chat provides FREE live website support and sales chat without the hassle! It's web site chat, simplified.
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
HeyHi.sg - Video call with interactive whiteboard