IconStore - Free icon packs by first-class designers
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Feather Icons - Simply beautiful open source icons
Clever - syncing between education applications for K-12 schools
Streamline icons - The world’s largest icon pack library - 100k icons and illustrations.
Claroline - Claroline is a collaborative eLearning and eWorking platform.