ADT Alarm Services; Do’s And Don’ts To Protect Your Home From Burglars
ADT Security Services (ADT) was founded in 1874 by Robert Roebling Clowry as American District Telegraph. At the time, ADT was a consolidation of 57 different telegraph companies. Through the years, the business went through different ownership and business concentrations as technology advanced. In the 1920s and 1930s, they began to specialize in things such as fire and burglar alarms. At the time, the company was run by AT&T. In the 1960s, it became publicly owned and started to provide home alarm services in large cities, such as New York City. In 1997, the company was purchased by Tyco International. Over the last 130-plus years, ADT has branched to over 30 different countries and employees tens of thousands of people.