Rebex
The Rebex mission is to provide top quality components for .NET developers (https://www.rebex.net) and a Lightweight SFTP / SCP / SSH Server for Windows (https://www.rebex.net/buru-sftp-server/). Rebex has been creating and selling .NET components worldwide since 2002. They have been developing software for .NET platform since the first public beta version of .NET. Rebex is located in Prague, Czech Republic. Their company also provides software development and outsourcing services for system integrators in the Czech Republic.
Kintivo
Kintivo (formerly SharePoint AMS) are committed to creating a great product. Not a good product. Not an okay product. Their goal is to provide every organization (big or small) with the opportunity to make an affordable investment in high-quality software that becomes an asset to it in the years ahead (instead of a liability).
Perpetuum Software
Perpetuum Software LLC emerged in 2002 to develop professional software components for the .Net Framework. Over the years the company has developed several lines of high-quality .NET and ASP.NET software components compatible with MS Visual Studio .NET, C# Builder, Delphi .NET and other IDEs supporting .NET Framework. The primary focus for Perpetuum Software LLC activity is development of software components intended for data reporting, analysis, and visualization. The company produces and offers both new and time-proven software components. All the components are being constantly perfected in accordance with the newest trends of .NET technology. Such use-proven components as Report Sharp-Shooter, Instrumentation ModelKit, OLAP ModelKit, Chart ModelKit, the .NET ModelKit Suite and other .NET components by Perpetuum Software are well-known on the software market and are used by Fortune 500 companies, governmental and educational institutions, and independent developers in more than 60 countries.