Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Ultra Hal Assistant - Zabaware is the creator of award winning artificial intelligence (AI) technology called Ultra Hal. Ultra Hal is an entertaining chatbot that learns and evolves from conversation. The more you talk to it the smarter it becomes.
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Wrench.ai - Wrench helps to unleash your marketing and sales potential using data science and artificial intelligence.
Nextcloud Contacts - The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.
Recombee - Recommender system as a service that uses advanced Machine Learning and Artificial Intelligence algorithms. Easy to try and evaluate.