DataSource.ai - Community-funded data science tournaments
Machine Hack - Machine Hack is the Machine Learning competition and assessment platform that makes it easy for data scientists, engineers, and business professionals to learn, compete, and get hired.
Kaggle - Kaggle offers innovative business results and solutions to companies.
International Data Analysis Olympiad (IDAHO) - International Data Analysis Olympiad (IDAHO) is the world’s leading ML and AI-based data science competition and contest platform that is open to students and professionals of all ages and nationalities.
Colaboratory - Free Jupyter notebook environment in the cloud.
DataHack & DSAT - DataHack & DSAT is a Data hacking competition platform made for Data Scientists that harnesses the potential of experts and solves real-world problems.