Remind - Remind, formerly Remind101, is a communication tool that helps teachers reach students and parents where they are. It also allows for translation features to better communicate with all families.
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
Google Classroom - Learning management tool by Google
Clever - syncing between education applications for K-12 schools
Edmodo - Where Learning Happens
Claroline - Claroline is a collaborative eLearning and eWorking platform.