Oliver Fire Protection & Security is a Mid-Atlantic fire protection and security contractor, founded in 1957 as Oliver Sprinkler Company and headquartered in King of Prussia, Pennsylvania. It designs, installs, inspects, tests and maintains wet, dry, preaction, deluge and foam sprinkler systems, special hazard suppression, fire pumps, hydrants and fire alarm systems with emergency communications. Its design team includes NICET-certified designers and in-house Professional Engineers. It also operates UL Listed central station monitoring for fire alarm and suppression systems. The firm employs close to 400 staff.