By The Mark Corporation (est. 2008 in Helsinki, Finland) is a software company that develops and provides services that help people learn, teach, and assess computer programming skills. Our clients include universities, high schools, and IT companies. Our products combine high-quality learning materials with unique exercises in which the learners can have automatic yet personalized feedback. We base our customer-oriented software and services on novel open-source technologies and recent research and innovations in web-based education.