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.
GroupDocs
GroupDocs creates easy to use, comprehensive online document management APIs for .NET, Java and Cloud, as well as a range of Cloud apps that improve document collaboration for organizations of any size. GroupDocs saves developers and end users time and money by offering a complete and powerful set of document management APIs allowing users to view, sign, annotate, compare, convert and assemble documents in a wide variety of formats, including Microsoft Word, Excel, PowerPoint and Visio, as well as Adobe Acrobat PDF and many image formats. Flexible workflows and easy-to-use, customizable user interfaces are part of the package.
RemObjects Software
RemObjects Software concentrates on developing state-of-the-art solutions that form the foundation of your software applications. RemObjects Software is a software development company offering tools and libraries for software developers on a variety of platforms. Their core products are centered around the Microsoft .NET, Apple Xcode and Embarcadero Delphi development platforms, but their central vision is to provide best-of-breed solutions for developers everywhere, and they are constantly looking at additional platforms, in particular for the RemObjects SDK/Data Abstract suite of products.