I definitely would think so. While those three were the starting options, they did say they expected more in the future.
I'd think that these were a benefit as a cost and maintenance saver and don't see anything keeping other business types from coming on board if they wanted. The biggest thing that comes to mind would be someway to report when a task was completed and satisfactory, if they were something outside of a networked computer. My main uncertainty would be their fiscal benefits of doing so depending on what the business actually was.
Im sure William banks will chime in :)