PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
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.
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Clever - syncing between education applications for K-12 schools
Confluence - Confluence is content collaboration software that changes how modern teams work