FTP Serv-U One of the best FTP servers out there
Telnet Ftp Server
Multi-user Telnet/Ftp server with administration console
Cyberduck
Share files with ease using this free program
FileZilla
Free and powerful FTP client
SolarWinds Serv-U Managed File Transfer Server
Serv-U Managed File Transfer Server is a secure FTP server software providing complete visibility & control for file transfer