Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Dialogflow - Conversational UX Platform. (ex API.ai)
Drift - A messaging app that helps you grow your business.
Octane AI - Octane AI offers tools to create a bot and engage customers and audience via messaging.
Twilio Flex - The programmable contact center platform 📱
Botpress - Open-source platform for developers to build high-quality digital assistants