Kano - The educational computer and coding kit for all ages
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Harry Potter Kano Coding Kit - Build a wand. Learn to code. Make magic.
iMocha - Make intelligent talent decisions.
Lego Boost - Build + Code + Play
Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.