Xamarin.Android - Integrated environment for building not only native Android but iOS and Windows apps too.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Qt Creator - Qt Creator is a cross-platform C++, JavaScript and QML integrated development environment. It is the fastest, easiest and most fun experience a C++ developer could wish for.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.
Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.