Established in 1874, ADT (American District Telegraph) Security Services Inc. is a No. 1 provider of electronic security systems and services in the United States. Some of the products/services provided include access control, advanced integration, carbon monoxide detection, medical alert systems, monitoring and video surveillance. It offers industry solution to various sectors, including aerospace, financial services, petrochemicals, food and beverage, manufacturing, health care and pharmaceuticals. ADT (American District Telegraph) Security Services Inc. is a Cisco registered and Safety Act certified company.

Website: adt.com

Phone: (412) 572-8000