BILLmanager is highly recommended for web hosting companies, internet service providers, and other subscription-based businesses that require an efficient billing and client management solution. Its scalability makes it suitable for both small startups and large enterprises seeking to automate billing processes and improve customer relationships.
DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.
WHMCS - WHMCS is an all-in-one client management, billing & support system for online businesses.
RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.
HostBill - HostBill is a powerful and flexible, all-in-one automation, billing, client management and support platform for online businesses.
Opendcim - a free, web based Data Center Infrastructure Management application.
Blesta - Blesta is professional client management, billing, and support software.