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.
Hillstone Software
Hillstone Software is a small technology firm based in Dublin, Ireland. They develop and supply software components and libraries and offer software development services to software development, IT and electronics companies and individuals worldwide. Their strong focus is on C / C++ and based products and services. They develop for many platforms: Windows desktop and server OS, Windows Mobile and Windows CE, Unix / Linux / Mac OSX, iOS and embedded devices. They develop software components, protocol stacks and libraries in the following areas: Legacy X.25 protocol and X.25 over TCP (XOT) conversion, serial communication, GSM SMS, GPS navigation (NMEA 183), TCP/IP network protocols (SMTP, POP3, NTP, TFTP, FTP, HTTP), security and encryption, message oriented middleware. Hillstone Software also offers software development and consultancy services to corporate and individual customers globally. They are capable of handling full software development cycle.