Core FTP mini SFTP server - a free secure mini SFTP server using SSH/SFTP to allow…

Sysax Multi Server is a Secure FTP Server and SSH2 Secure Shell Server combined into a single product.

Core FTP Server - secure FTP server with SSL/TLS/FTPS, SSH/SFTP, HTTPS support, virtual paths, access rules, certificate authentication and much more.

Cerberus FTP Server provides industrial strength secure SSL/TLS encryption and powerful FTP server performance without sacrificing ease-of-use.