sourceDESK is a complete solution for web hosting and online businesses providing automation for all important business processes. This includes product creation, payments, support and accounting.
Blesta - Blesta is professional client management, billing, and support software.
WHMCS - WHMCS is an all-in-one client management, billing & support system for online businesses.
BoxBilling - Complete client management, billing & support software.
HostBill - HostBill is a powerful and flexible, all-in-one automation, billing, client management and support platform for online businesses.
NUKERN - Set your web hosting services on autopilot
HopeBilling - HopeBilling is a free billing software for hosting providers.