Welcome to Customer Login! United Security Services has been a security industry leader for over two decades. We provide Los Angeles security guards in your area! Our security solutions provide maximum protection of your interests whether they be in private security, facility security, event security, security systems or one of many other security guard services we offer. We pride ourselves in customer service and in providing great value. Our management system has been structured to assure that our field operations establish a safe and responsive environment for our clients. Our security guard training keeps our security guards at the top of their game, both is service and in technology.