The Amalgamated Engineering and Electrical Union (AEEU) was a British trade union. It merged with the MSF to form Amicus in 2001.

The history of the union can be traced back to the formation of the Amalgamated Society of Engineers in 1851. Many local and regional unions joined the ASE in subsequent years and in 1920, after the acquisition of nine fresh member unions, the name of the organisation was changed to the Amalgamated Engineering Union. The style, Amalgamated Engineering and Electrical Union was adopted in 1992. [1] (http://www.warwick.ac.uk/services/library/mrc/ead/259aeucol.htm)

The original ASE was one of the 'New Model Unions' of the 1850s-1870s. These unions, which also included the Ironfounders, Builders, and Carpenters' societies, rejected Chartism and the ideas of Robert Owen in favour of a more moderate policy based on 'prudence', 'respectability' and steady growth. Great importance was attached to the question of finance, as substantial funds would not only provide maintenance for members involved in strike action, but also help to deter the employers from attacking the organisation. Since its members were skilled and relatively highly paid, it was possible to charge contributions of a shilling a week and to build up a fund of hitherto unimaginable proportions.

In 1896, the ASE was involved in an extended national lock-out which greatly weakened the organisation.