No license granted under the terms of this chapter shall be transferable, but an employment agency may, with the approval of the Commissioner of Revenue, at any time, incorporate or admit a partner or partners to the business or profession or make changes in a corporation, but no employment agency shall permit any person not mentioned in the application for a license to become connected with the employment agency, as a partner or as an officer of a corporation, unless the written consent of the Commissioner of Revenue shall first be obtained. Such consent may be withheld only for a reason for which an original application for a license might have been rejected, if the person or persons in question had been mentioned therein.