Zendesk Answer Bot - Chatbots

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Aivo - Skyrocket your Customer Service and Sales KPIs with a Chatbot powered by Artificial Intelligence. Give time back to people.

LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.

Olark - Real-time chat and monitoring of your website visitors through Google Talk and Jabber.

Tars - TARS enables users to create chatbots that replaces regular old webforms.