No employment agent shall engage in the business for profit or receive any fee, charge commission or other compensation, directly or indirectly, for services as employment agent, without first having obtained a license therefor from the state tax commissioner. Such license shall not be issued until the commissioner of labor shall have approved in writing the application therefor, and, when issued, such license shall constitute a license from the state to operate as an employment agent for compensation and shall not be transferable. Such license shall at all times be kept posted in a conspicuous place at the place of business of such employment agent. Every employment agent shall pay the annual license tax provided for in article twelve, chapter eleven of this code.
In addition to any other information required, an application for a license under this section shall include the applicant's social security number.