NixBill Automation provides many features to manage your Web hosting business. It provides hosting modules, domain modules, payment modules, and encryption modules. Its encryption modules use a unique solution for credit card data storage, which can use AES methods or others, such as PGP. You can create as many encryption modules as you like to store different sets of credit card data differently.
NeoBill is a Web-based customer management and billing solution designed for Web hosting providers, particularly hosting resellers. It can create invoices, manage domains, and provides other services. It has an API for CPanel and for Domain Registrare for automatic domain registration.
MEVEO is a billing system for mediation, rating, invoicing, payment, dunning, and composition. It is adapted to the following situations: batch processing of thousands of invoices per month (or much more), complex price plans, real time rating, and re-rating, automatic provisionning through an API, multi-format CDRs, and pre/post-invoicing reports.