Teachworks - Teachworks helps growing tutoring & teaching companies efficiently manage students, teachers, scheduling, billing, payroll and more.
LMS Collaborator - LMS Collaborator is a state-of-the-art learning management system designed to meet the need for corporate training, upskilling, and evaluation with flexible integration abilities.
Clark - Software for your tutoring business
Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...
TutorTrac - Classroom Management
ILIAS - For several of my clients in the health care domain, ILIAS turned out to be an excellent choice.