Managing user groups

Hi, I have just begun to look into Connect as an LMS solution for an upcoming project. I will have a number of user groups - different clients (companes) that I will want to have organized with access permissions. is there an area in Connect where I can manage this? For example can I add 50 people in company A to a preset list and then push an eLearning module/lesson to them?

If there is a manual you could direct me to that adresses this that would be great as well.

Best, Steve