Zendesk Answer Bot - Chatbots
indemandly - Live chat 2.0: Customer messaging that converts
Aivo - Skyrocket your Customer Service and Sales KPIs with a Chatbot powered by Artificial Intelligence. Give time back to people.
Message Me - Website to create your contact business card
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.