|Affiliation||TUC, Alliance for Finance|
|Key people||John Stoddard, general secretary|
|Office location||Leek, Staffordshire|
The union was founded in 1972 as the Leek and Westbourne Building Society Staff Association, and was certified as an independent union in 1976. In 1984, it was renamed the Britannia Building Society Staff Association, becoming the Britannia Staff Union in 1994. In 1999, it affiliated to the Trades Union Congress. The union organises workers at the Britannia division of The Co-operative Bank, where it has a high membership density - 76% in 2004.
- Arthur Ivor Marsh and Victoria Ryan, Historical Directory of Trade Unions, p.283
- Gregor Gall, Labour unionism in the financial services sector, p.129
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