WHMCS - WHMCS is an all-in-one client management, billing & support system for online businesses.
BILLmanager - BILLmanager is an all-in-one web hosting billing software. It provides billing automation, service provisioning, client portal & back office and support center.
MachPanel - MachPanel is a Multi-Cloud Service Orchestration & Delivery Platform.
Blesta - Blesta is professional client management, billing, and support software.
Bill.com - Bill.com provides ACH payments processing, automates your accounts payable and accounts receivable processes.
Hosting Controller v10 - Hosting Controller is a Hybrid automation solution for On-premises and Cloud service providers.