Yeah! There are lots of secure file transfer tools are available on the net that can solve your problems. I know one among of them called wwwdot jscape dot com secureftpserver JSCAPE Secure FTP Server.
It provides reliable and secure file transfers between internal and remote users, business partners and customers across corporate networks and the Internet. Secure file transfer is paramount in protecting critical, confidential enterprise data from would-be intruders as the data is transmitted over the Internet.
Hope this will help you!
All the best!