The Grand Orange Lodge of Scotland, or Loyal Orange Institution of Scotland, is the branch of the Orange Order in Scotland. It is a Protestant-only, Masonic-style fraternity that defends/promotes Protestantism, conservatism, Britishness, and the continued unity of the United Kingdom (i.e. unionism). It also campaigns against Scottish independence and was an official participant in the 2014 independence referendum. Its headquarters are in Bridgeton, Glasgow and it claims about 50,000 members, the vast majority of whom are working-class Protestants from the Scottish Lowlands.