ADT
1987 Hawley Group, which already had some security operations, acquired ADT Inc of USA, the world's largest burglar and fire alarm services group[1]
1988 Hawley took control of Cope Allman and Co; Hawley changed its name to ADT[2]
1988 Sold the cleaning companies, other than hospital cleaning, to BET Initial[3]
1989 British Car Auctions changed its name to ADT Auctions[4]
1989 The company owned 20 percent of Nu-Swift, fire extinguisher maker and office cleaning contractor[5]
1989 ADT Ltd sold the last of its property service companies, to allow it to concentrate on electronic security systems and car auctions[6]
1989 ADT focused on electronic security systems and car auctions by disposing of its property maintenance and services activities[7]
1990 ADT UK Ltd became ADT Group