if you're a company with employees in more than one state you have the option to either establish one shop account that serves all of your locations which you could do in the state in which your company is headquartered or you can set up accounts in each state where your employees are based.
how does a small business sign up for health insurance on the exchange if there are employees in more than one state? . can we just use the exchange in the state where we are headquartered? what if we are incorporated in another state and a foreign corporation in the state of our headquarters?