ADT Home Security Alarm System history

“ADT Security Welcomes Wendell Thomas To Winston-Salem,” Winston-Salem Journal, April 7, 1992.

1994: ADT hits another major milestone with having over one million customers.

In 1996 it changed its name to ADT Security Services, Inc. and was relocated to Boca Raton, Fla.

Ashcroft’s ADT had grown so successful that he was able to sell it to Tyco International for $6.7 billion in 1997.

In 1998 it was acquired by Tyco International Ltd.

He even appeared on the cover of multiple business magazines and garnered the reputation as “the most aggressive CEO in America.” In 1999, his salary was $170 million.

Tyco even paid half of the $2 million bill for a 2001 birthday party for his wife on a private island in the Mediterranean by calling it a work retreat.

By 2002, Lord Ashcroft, still a non-executive director was fed up with the extravagant entitlements of top Tyco executives and recommended that the board of directors reign in the team.

In 2005, Kozlowski, along with former Tyco CFO Mark Swartz, was indicted on 38 felony counts of fraud and larceny from his time at Tyco.

In January 2010, Tyco purchased Broadview Security.

In September 2011, Tyco announced it would split into three companies, ADT being one of the three.

On October 1, 2012, ADT debuted as an independent public company and began trading on the New York Stock Exchange.

In 2014, ADT acquired the Canadian company Reliance Protectron Security Services.

In February 2016, Apollo Global Management acquired ADT for nearly $7 billion.

In January 2018, ADT once again went public through an IPO on the NYSE. The stock opened at over $12/share.