DevExpress ASP.NET
I like to think of DevExpress as a business partner that helps me to stay focused on the development tasks that actually add value to my applications, while they take care of everything else!
Andres Hernandez Reyes, CTO Lexis S.A.
Because Performance Matters

DevExpress ASP.NET AJAX controls are powered by a blazing fast, patent-pending data processing engine.
Because Elegance Matters

DevExpress ASP.NET AJAX controls ship with 18 built-in application themes so you can deliver your best.
Because Run Everywhere Matters

DevExpress ASP.NET AJAX controls are touch-enabled and ready for any desktop or mobile device browser.
Because Productivity Matters

DevExpress ASP.NET AJAX Controls offer a comprehensive and easy-to-use feature set.
Reviews
Good response and alert of customer request plus good response team.
I was initially surprised by the tremendous amount of controls contained in the package. I immediately started using it in an ASP.NET project.
Training should be free.
Great development productivity and quality.
Latest News
DevExpress Blazor UI Components updated
DevExpress Grid for Blazor released, now with support for Server Mode data binding.DevExpress ASP.NET 21.2.6
Improves Visual Studio Report Designer, Spreadsheet and GridView controls.DevExpress ASP.NET 21.2.5
Improves Rich Text Editor, Spreadsheet and GridView controls.About DevExpress
DevExpress engineers feature-complete Presentation Controls, IDE Productivity Tools, Business Application Frameworks, and Reporting Systems for Visual Studio, along with high-performance HTML JS Mobile Frameworks for developers targeting next generation mobile devices. Whether using WPF, Silverlight, ASP.NET, WinForms, HTML5 or Windows 8, DevExpress technologies help you build your best, see complex software with greater clarity, increase your productivity and create stunning Windows, Web and Mobile applications in the shortest possible time.