Microsoft

Vision API: Image-processing algorithms that smartly identify, caption, index, and moderate your pictures and videos.
Speech API: Converts spoken audio into text, use voice for verification, or add speech recognition to your app.
Language API: Allows your apps to process natural language with pre-built scripts, evaluate sentiment and learn how to recognize what users want.

Microsoft Azure Champions League, a series of three hackathons aimed at empowering developers on Azure and its numerous services. Each hackathon of the series have its unique problem statements and would require developers to build their hacks with mandatory use of Microsoft Azure.