The ResellerClub module allows you to register and manage domains with ResellerClub.
ResellerClub offers thawte's Digital Certificates.
The RRPProxy module allows you to register and manage domains with RRPProxy.
The SCPanel module allows you to add and manage SCPanel servers in WHMCS.
The Software Licensing addon module allows you to license and sell your own web applications and implement remote license checking.
The SolusIO addon module allows customers to register for, manage, and configure post-pay for VMs and provisioning in SolusIO.
SolusVM is a virtual server control panel from SolusLabs, Ltd.