home securty system
” In 2012 its annual revenue exceeded $1. 9 billion. ADT Corporation was founded in 1874 and today is one of America’s leading alarm and security monitoring companies. Based in Boca Ranton, Florida, the company operates in 35 countries around the world, supplying alarms, monitoring equipment and peace of mind to homes and small businesses. In South Africa, ADT provides armed response teams and around the clock surveillance. Originally known as American District Telegraph, ADT started out as a telegraph delivery business.