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.
jQWidgets
jQWidgets specializes in the development of platform independent, cross-browser presentation components for Web-based PC, Touch and Mobile applications. Their goal is to help customers deliver better Web-based applications that can be accessed through any device and are a pleasure to use.
Wintellect
Wintellect is a consulting, debugging and training firm dedicated to helping companies build better software, faster. They are Microsoft's largest developer training vendor. Wintellect's offerings include full lifecycle application development, architecture, analysis and design services, UI/UX design, project management, debugging and performance tuning, database design and development, as well as in-depth, multi-day .NET on-site and open enrollment training.