NetWorld UK Helpdesk
Provides range of scalable Windows-based helpdesk software with third party integration capability.
http://www.thenetworlduk.net/Sunrise_Software/Sunrise_Menus/sunrise_help_desk_software_menu.asp

GeoCom Helpdesk
Helpdesk system. The intelligent user support for efficient trouble shooting. Based on Lotus Domino.
http://www.geocom.de/geocom/page/uk/hd.html

Bankoi HelpDesk Software
Bankoi Helpdesk Software is a fully featured browser based helpdesk/email management application designed to streamline the operation of managing emails or support requests
http://www.helpdesk-software.ws

Coral Sea Software
Coral Sea Software
http://www.coralsea.com.au/sysman/index.htm

ASP Helpdesk, Inc.
ASP Helpdesk, Inc. has been providing computer solutions for small businesses for over twenty years. ASP Helpdesk offers experience in the computer industry combined with an excellent knowledge of accounting procedures and current tax laws.
http://www.asphelpdesk.com/

GroupLink
GroupWise helpdesk and eCRM software.
http://www.grouplink.net

KorenIT
Provide outsourcing of helpdesk and IT support services.
http://www.korenit.com

HelpDeskList
Helpdesk software review, make the informed choice with direct comparisons of helpdesk functionality and pricing
http://www.helpdesklist.com

Helpdesk VNC
Gives you remote connectivity to any Windows based system even if it is behind a firewall.
http://www.helpdeskvnc.com/

KiXtart HelpDesk
On-line manual, forum, scripts, downloads, links.
http://helpdesk.kixtart.org/