ComponentSpace
ComponentSpace has a breadth of knowledge in Microsoft technologies covering everything from Web applications through to Windows device drivers. Its focus is on the Microsoft .NET framework and tools including Web applications and services, Windows components and applications, ADO.NET and SQL Server database design and mobile applications.
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.
Blazorise
Blazorise (Megabit) is a European software development company situated in Croatia. It produces UI components for Blazor, C#, and Visual Studio developers. Blazorise .NET, and Blazor UI components are the company's most popular products, designed to operate with almost any CSS framework, including Bootstrap, Bulma, Material, AntDesign, and others.