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.
Syncro Soft
Syncro Soft is a privately held software company founded in 1998 with a large area of expertise in XML technologies: XML Schema, Relax NG, Schematron, XSLT, XPath and XQuery. The main product Oxygen XML Editor provides the best coverage of the today XML technologies; it complies with the established standards released by W3C and other organizations and enhances developer productivity through an intuitive and innovative XML IDE. Syncro Soft is a member of the W3C. Another product developed by Syncro Soft is Syncro SVN Client (a Subversion client).
Whole Tomato Software
Whole Tomato Software develop Visual Assist, a plug-in for Microsoft Visual Studio. The plug-in primarily enhances IntelliSense and syntax highlighting. It also enhances code suggestions, provides refactoring commands, and includes spell checking support for comments. It can also detect basic syntax mistakes such as use of undeclared variables. As of April 2019, Visual Assist supports Visual C++ 6.0 through most versions of Visual Studio, including Visual Studio 2019 and Visual Studio Community 2019.
VBeXpress.com
VBeXpress.com was founded in Ireland in 1997. They provide consultancy and software for building business solutions and have been developing code generators for Windows developers for almost five years. Their code generator for Visual Basic 6.0 has been used to help build 1000's of applications and websites across a wide range of businesses.