DevExpress
DevExpress (Developer Express) is a software development company based in the United States. It produces coding assistance tools and components for Delphi, C++ Builder and Microsoft Visual Studio developers. The major part of its product line is VCL, .NET WinForms and ASP.NET components that replicate the UI of Microsoft Windows and Microsoft Office applications. DevExpress has won many industry awards for its products.
Hibernating Rhinos
Hibernating Rhinos LTD is an Israeli based company, focused on delivering products and services in the database infrastructure field. Its mission is to get rid of all forms of friction in software development and maintenance, including after the software has been delivered and is running in production. Hibernating Rhinos provides a superior database system (RavenDB), tooling to monitor, inspect, analyze and suggest improvements to database access patterns in your applications (Über Profiler suite of profilers) and a distributed replicated file system (RavenFS) to manage distribution of very large files. Hibernating Rhinos are committed to providing high quality products and services, focusing on rapid turn around and top notch customer service.
Xamarin
Xamarin was founded in May of 2011 in Boston, Massachusetts. Their mission is to produce the best software development tools in the world, and to make it fast, easy and fun to build great mobile applications. Xamarin is composed of more than 20 members of the team that built Mono, with ten years of experience working together to create a great developer platform.