Vuforia SDK - Vuforia is a vision-based augmented reality software platform.
Skylightit.com - Making Business Life Simple - Project Management, Tasks, Invoice, Time Billing and Contacts CRM For Businesses.
Google ARCore - Google Augmented Reality SDK
Microsoft Hololens - Augmented reality headset from Microsoft
ARToolKit - The world's most widely used tracking library for augmented reality.
Scope AR - Scope AR is an enterprise-grade AR and VR solution that allows you to bring anything virtually to life.