Sun Alliance Group plc was a large insurance business with its main offices in the City of London and later Horsham. In 1996 Sun Alliance merged with Royal Insurance to form the Royal & Sun Alliance Insurance Group.
History
The company was created in 1959 by the merger of Sun Insurance, founded in 1710, and Alliance Assurance founded in 1824.[1]
In the mid-1960s Sun Alliance established its administrative centre in a large office block, spanning an A-road through the town centre of Horsham, a railway town 31 mi south of London's centre.[2][3] and its head office at 1 Bartholomew Lane in London.[4]