At HelpSpot we're big supporters of open source software and simply couldn't run our business without it. So, 6 years ago we created Open Source Help Desk List to assist companies looking for an open source help desk software solution. It's success has been beyond our wildest expectations; serving as an invaluable tool for thousands of companies to find the solution they need. We hope it can help you as well.

If you'd prefer a professionally developed and supported help desk application, then give us a look: HelpSpot: Help Desk Software.

Thanks!

Ian Landsman Founder, UserScape

P.S. Checkout the newest project we're working on, the PHP framework Laravel