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.

Wylei - Wylei, a pioneer in Predictive AI cloud-based machine learning and marketing automation, creates & delivers real-time, personalized content.

Drupe - Next generation contact manager and dialer.

craft ai - craft ai is an AI engine created for developers, powered by a visual editor and simple APIs.

Simple Contacts - Contact lens prescriptions from home

Recombee - Recommender system as a service that uses advanced Machine Learning and Artificial Intelligence algorithms. Easy to try and evaluate.