Security jobs in your ZIP code The Security Industry Authority (SIA) is the agency or organization responsible for licensing the private security industry in the United Kingdom. This organization is mandated with two responsibilities. Their first responsibility is the licensing of Security Guards and Security Officers. Their other responsibility is to rate or measure the private security personnel providers against independently assessed criteria. In this page, you will find the real-time listing of Security Guard and Security Officer Job Openings in the United Kingdom. This page was added based on the requests from many of our readers and group members. ...