Small businesses can shop off-exchange through a broker, buy a small-group plan...

https://yenkee-wiki.win/index.php/Health_Insurance_for_a_Company_with_30_Employees:_Off-Exchange_Options

Small businesses can shop off-exchange through a broker, buy a small-group plan directly from a carrier, or compare HRA options. Before weighing premiums, check that employees’ doctors and nearby hospitals are in each plan’s network.