The Progressive Building Society was founded in 1914 in Belfast, and operates 12 branches across Northern Ireland. It is a member of the Building Societies Association. In July 2014, it merged with the City of Derry Building Society. References External links Building Societies Association KPMG Building Societies Database 2008 1914 establishments in Ireland Building societies of the United Kingdom Banks established in 1914 Financial services companies of Northern Ireland Organizations established in 1914