Group health insurance requires at least two eligible employees that are on legitimate payroll where taxes are deducted in order to be considered a group. Then groups can be broken down further. You can be considered small group which in most states they consider that less than 50 lives and then you have large group that is typically considered over 50 lives. The good thing about group coverage is usually it's less expensive than what you can get as an individual. It's seen as an employee benefit and you have more buying power by having more bodies associated with the plan so that's how it ends up typically being less expensive.