PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
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.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Clever - syncing between education applications for K-12 schools
GNU Octave - GNU Octave is a programming language for scientific computing.