is adt a private company
142-year-old ADT security company goes private. ADT, the nationwide leader in residential security, has become a privately held company after its acquisition by an affiliate of Apollo Global Management. ADT, headquartered in Boca Raton, agreed Feb. 16 to be acquired by the private equity firm in New York for $6.9 billion, or $42 a share. An Apollo affiliate is merging ADT with its Protection 1 security firm, which provides both residential and commercial security services.