Xamarin.Android - Integrated environment for building not only native Android but iOS and Windows apps too.
Backbase - Backbase delivers a customer experience platform to enterprises that want to deliver a superior customer experience.
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.
SDK.finance - Core banking and payment platform with 345+RESTful API. Best way to run software for banks, payments, and FinTech. Scale, Enterprise, Secure.
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.
Usablenet - Usablenet is a mobile and multi-channel technology solution.