GOG Galaxy - Truly gamer friendly, DRM-free online gaming platform.
Clever - syncing between education applications for K-12 schools
Epic Games - Computer game storefront that gives 88% of revenue to developers
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
itch.io - An online game marketplace and community.
Claroline - Claroline is a collaborative eLearning and eWorking platform.