ClientExec is a popular billing and support solution, that's used by a lot of hosting companies as well as their resellers. It is feature-rich and customizable, so it will enable you to create and take care of your own reseller company in no time. ClientExec will enable you to accept online payments through a number of payment processors or to offer domain registrations and SSL certificates via various service providers, to put prices for hosting plans and add-ons, to view detailed stats about your customers in addition to the services they've bought, and monthly reports about how your business is doing. In addition, ClientExec features an integrated ticket system, so you can easily provide support to your customers. When you operate an actual company, you'll be able to give different degrees of accessibility to your management team, your support staff, the sales staff, etcetera, with pre-defined features they'll be able to access and to change.