Small businesses can shop off-exchange through a licensed broker, by contacting...

https://star-wiki.win/index.php/What_Does_Employer_Contribution_Mean_in_a_Group_Health_Plan%3F

Small businesses can shop off-exchange through a licensed broker, by contacting insurers directly, or by comparing small-group plans. Before weighing premiums, check that employees’ doctors and nearby hospitals are in each plan’s network.