Patrol Guard Security Services (PGSS) is a Denver-based private security company providing professional armed and unarmed security services throughout the Denver metro area and surrounding Colorado communities. Services include security guards, mobile patrol, commercial and retail security, construction site security, event security, fire watch, access control, loss prevention, industrial and warehouse security, executive protection, and customized security solutions. PGSS emphasizes professionalism, prevention, visible deterrence, de-escalation, accountability, and responsive client service.