Best Options for Hosting an Articulate course

Hello, we currently use Articulate on a hosted LMS that's accessible only by our employees. However, someone in our company has asked me about posting some Articulate-developed courses on a site that could be accessed by external users (such as our clients).

Optimally, they want users to access or launch the course via a registration tool (eTouches) and then have the course send the "Completion" data back to eTouches via the API. Failing that, they'd like to find a host for the courses and then get the Completion data from that host (users would still launch or access the course from eTouches). Any ideas?