what does nab stand for
National Australia Bank (abbreviated NAB, branded nab) is one of the four largest financial institutions in Australia in terms of market capitalisation and customers.NAB was ranked 21st largest bank in the world measured by market capitalisation and 41st largest bank in the world as measured by total assets in 2014.n March 2010 NAB stated it expected to save nearly $1 million in annual power costs from a $6.5 million tri-generation plant at its main data centre. NAB became one of Australia's largest carbon neutral companies in September 2010.